7080 Handbook 3561b

(NMEA 0183 v4.00 / IEC 61162-1: 2010) $VMVBW,xxx.x,,A,,,V,,V,,V*hh (NMEA 0183 v4.00 / IEC 61162-1:2010) $VMVHW,,T,,M,xxx.x,N,xxx.x,K*hh (NMEA 0183 v4.00 / IEC 61162-1:2010) Output message frequency is 1 Hz. Note that both NMEA 0183 O/Put ports give all messages (except proprietary JLG dimmer messages) input to the 5 Channel I/O board (see section 1.2.2) plus those calculated by the P1100 microprocessor software. NMEA Drivers are SN75176AP. Output drive capability rated at 1 NMEA load of 500 ohms each port; providing for a maximum of 2 NMEA listeners (1K0 impedance each) per output port.

1.2.2 5 Channel I/O Board The 5 Channel I/O board provides the system with an interface for the acceptance of other serial sentences. 5 separate IEC 61162-1 (NMEA 0183) sentences can be input via the 5 available input channels. These inputs are provided with opto-isolators (1k0 in-line impedance) and require a minimum of 0.5mA per channel. Messages are all ed onto the microprocessor board where appropriate data is extracted from particular sentences as recognised by the P1100 software and necessary calculations are performed. IEC 61162-1 (NMEA 0183) sentences are re-transmitted. These are available on output channels 1, 3, 4 and 5, for use by other shipboard equipment and in particular Walker P1248 Log Data Displays, P1249 Wind Data Displays and P1255 Weather Data displays. Output channel 1 also includes a set of 24Vdc power output terminals.

Document No. 7080 Iss 3 Rev 2

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7080 Operation & Installation Handbook Output Channel 5 can also be used for transmission of proprietary Walker/JLG sentences. Any such messages, input at any of the input channels, are only available for onward connection from Output Channel 5. Output Channel 2 is dedicated as a “legacy” channel and provides serial data, and 24Vdc power, to earlier Walker P248 Log / P249 Wind and/or P255 Weather Displays. This “legacy” channel has a message frequency of 1.5Hz. Use of earlier Walker P255 Weather Displays is only possible, provided that a P1002 Weather Sensor, or a P1003 Wind and Weather Sensor, is used to provide the required serial “XDR” message into the 5 Channel I/O Board.

LEDs are fitted for diagnostic purposes and are covered in section 4.1.3.5

Various Walker Wind Sensors can be connected into the 5 Channel I/O Board.

A combined ultrasonic masthead unit; P292, is available (see drg. 3342-2-7) for connection into any one of the five input channels. This type of wind sensor outputs a NMEA 0183 “MWV” serial wind sentence with the wind speed in knots. Alternatively, the Walker P296 combined cup and vane unit (see drg. 3343-2-30) can also be used. Again, this unit also outputs a NMEA 0183 “MWV” serial wind sentence with the wind speed in knots.

As an alternative to either of the above, a separate wind speed sensor (cup unit) and a separate wind direction sensor (vane unit); P299 and P300 respectively, can also be used. Two input channels would be used, one for each type of sensor. Both sentences would be ed on to the microprocessor board where the wind speed data; from the P299, and the wind direction data, from the P300, would be extracted before the “MWV” sentence was re-formulated to include both wind speed and wind direction data.

Alternatively, IEC 61162-1 (NMEA 0183) “MWV” sentence/s, described above, may be input separately, from other talkers, into any available input channel/s.

Full list of IEC 61162-1 (NMEA 0183) sentence formatters that may be input, from other ship’s equipment, in order that full functionality of the P1100 unit can be utilised, are as follows:


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7080 Operation & Installation Handbook “MWV” (either separate sentence with relative wind speed and a further separate sentence with relative wind direction or as a single sentence containing both relative wind speed and relative wind direction values) “HDT” – for heading*. “VTG” – for speed over ground* / course over ground*. “GGA” – UTC of position fix / latitude / longitude / GPS quality indicator / number of satellites / HDOP #. “VHW” – in absence of a fitted Walker transducer, for a source of speed through the water (secondary use*) or as an alternative source of heading. “VBW” – in absence of a fitted Walker transducer for a source of speed through the water (secondary use*) or, if included, speed over ground (primary use*) “XDR” – for weather information; if required. A single message is ed through. Note however, that if a P1263, water temperature sensor is also connected, in addition to a P1002, or P1003, sensor, the data fields will be re-transmitted as a single string.

* For automatic calculation and transmission of “True Wind” information. # For automatic GPS calibration.

After processing, the P1100 unit will combine and output a message string that includes sentences as follows:“VHW” “VBW” “VLW” “MWV” (relative) “MWV” (theoretical) “MWD” sentence will be output if a “VTG” or “HDT” sentence is input If “XDR” / “GGA” / “VTG” / “HDT” messages are input, these too will be output.


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7080 Operation & Installation Handbook Full details of sentences that can therefore be output; providing NMEA input requirements are met, are as follows: $VMVHW,,T,,M,xxx.x,N,,K*hh (NMEA 0183 v4.00 / IEC 61162-1:2010) Note that this message is transmitted on legacy Output Channel 2. $VMVLW,xxxxx,N,xxxxx.x,N*hh (NMEA 0183 v2.30 / IEC 61162-1:2000) Note that this message is transmitted on legacy Output Channel 2. $VMVLW,xxxxx,N,xxxxx.x,N,,N,,N*hh (NMEA 0183 v4.00 / IEC 61162-1: 2010) Note that this message is transmitted on Output Channels 1, 3, 4 and 5. $VMVBW,xxx.x,,A,,,V,,V,,V*hh (NMEA 0183 v4.00 / IEC 61162-1: 2010) Note that this message is transmitted on Output Channels 1, 3, 4 and 5. $WIMWV,xxx.x,R,xxx.x,N,A*hh (NMEA 0183 v4.00 / IEC 61162-1: 2010) Note that this message is transmitted on Output Channels 1, 2, 3, 4 and 5. $WIMWV,xxx.x,T,xxx.x,N,A*hh (NMEA 0183 v4.00 / IEC 61162-1: 2010) Note that this message is transmitted on Output Channels 1, 2, 3, 4 and 5. $WIMWD,xxx.x,T,,,xxx.x,N,,M*hh (NMEA 0183 v4.00 / IEC 61162-1: 2010) Note that this message is transmitted on Output Channels 1, 2, 3, 4 and 5. $WIXDR,a,x.x,a,c - - c, ……………….a,x.x,a,c - - c*hh Note that this message is transmitted on Output Channels 1, 2, 3, 4 and 5. $VMVHW,,T,,M,xxx.x,N,xxx.x,K*hh (NMEA 0183 v4.00 / IEC 61162-1: 2010) Note that this message is transmitted on Output Channels 1, 3, 4 and 5. Any “GGA” / “VTG” messages will be re-transmitted as received, from Output Channels 1, 3, 4 and 5.

Output message frequency is 1 Hz with regard to any message output on Channel 1. Any messages output on Channel 1 will also be output on Channels 1A* and 1B*. * IEC 61162-1 (NMEA 0183) output channels on EM terface (Transducer Board). NMEA Drivers are MAX3442E. Output drive capability rated at 1 NMEA load of 500 ohms each port; providing for a maximum of 2 NMEA listeners (1K0 impedance each) per output port.


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7080 Operation & Installation Handbook 1.2.3 Universal Microprocessor Unit The microprocessor allows digital processing of information to take place, making the equipment more “intelligent” in that it is capable of performing additional functions. The front LCD display and keypad connect into this circuit, allowing the operator to interact with the system. The loaded software enables the system to carry out all the necessary log calibration procedures, compiles associated look-up tables, provides constant monitoring of transducer signal levels, serial IEC 61162-1 (NMEA 0183) data extraction and full calculation processes to provide IEC 61162-1 (NMEA 0183) output data for both log and “true” wind. Constant monitoring, for validity of both received and transmitted IEC 61162-1 (NMEA 0183) serial data, is carried out.

1.3 The 7070/7080 Indicators As well as having a built in LCD display, the 7080 has various types of remote indicators; for log, displaying speed and distance, for wind, displaying wind speed and direction, and for weather, displaying air temperature, barometric pressure, relative humidity and water temperature. These are driven from the Electronics Unit using digital communication. The indicators have integral illumination controls, which allow dimming to extinction if required. All the displays are made up of a common rear power/microprocessor PCB and a front “OLED” display board. The front “OLED” display board for the P1249 Wind Data Display is the only one that is different from all the other front “OLED” display boards. See sections 1.3.1 onwards for additional information concerning the available displays and refer specifically to the full Data Sheets; available separately. Various indicator controls are also available. These allow remote operation of the displays and allow them to be mounted in “over-head” consoles. Separate data sheets are again available.

1.3.1 Log Data Display: P1248 The P1248 Log Data Display is housed in a DIN 43700 pattern (Din144 x 144) case and reads IEC 61162-1, NMEA 0183, “VLW”, “VHW” and “VBW” serial data to provide readings of Log Speed through the Water (STW) in Knots, Trip Distance travelled through the water, and Total Distance travelled through the water, both in Nautical Miles. A relay can be used for re-setting Trip Distance. Power supply requirement is 24Vdc.


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7080 Operation & Installation Handbook The unit has two 256*64 pixel OLED Graphic displays, 4 Touch switches; for trip reset, trip and total distance display modes and illumination control, 4 NMEA 0183 inputs and 1 NMEA 0183 output. Displayed readings meet the requirements of IEC 62288: 2008, for the presentation of navigationalrelated information on shipborne navigational displays. Operational controls likewise reflect the appropriate requirements specified within this standard.

The P1248 installation drawing is 3419-A3-10; cut-out detail is 3347-A3-71. For separate connection diagram, 3419-A3-11, refer to individual P1248 Data Sheet.

A P1275, dicator control, is also available, which allows remote “mode” and “illumination” control of the P1248 log data display. This allows the P1248 Display to be mounted in an “over-head” console. A separate P1275 data sheet is available.

1.3.2 Wind Data Display: P1249 The P1249 Wind Data Display is housed in a DIN 43700 pattern (Din144 x 144) case and reads IEC 61162-1, NMEA 0183, “MWV” and “MWD” serial data to provide readings of Relative, True, and True to Ship, wind speed and direction. Power supply requirement is 24Vdc. The unit has two 256*64 pixel OLED Graphic displays, 4 Touch switches; for display mode, scaling and illumination control, 4 NMEA 0183 inputs and 1 NMEA 0183 output. A ring of LEDs in 5° steps also indicates wind direction. Three “MODES” of operation are provided. In “Mode 1”, activated by pressing on the “REL” key, the top display will show Relative wind speed, with the lower display showing Relative wind direction. If the “REL” key is successively pressed 3 times or more within 3 seconds, then the displayed Wind Speed units will change with each subsequent key press in the sequence KTS, M/S, KPH and MPH. In “Mode 2”, activated by pressing on the “TRUE” key, the top display will show True wind speed, with the lower display showing True wind direction. A further press of the “TRUE” key will toggle the display to “Mode 3”, which will display “True to Ship” wind data. Further presses of the “TRUE” key will toggle the display between Mode 2 and Mode 3.


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7080 Operation & Installation Handbook Relative, True or True to Ship, wind direction is also indicated on the ring of LEDs as appropriate to the activated display mode. Displayed readings meet the requirements of IEC 62288: 2008, for the presentation of navigationalrelated information on shipborne navigational displays. Operational controls likewise reflect the appropriate requirements specified within this standard.

The P1249 installation drawing is 3418-A3-10; cut-out detail is 3347-A3-71. For separate connection diagram 3418-A3-11, refer to individual P1249 Data Sheet.

A P1274, wind indicator control, is also available, which allows remote “mode” and “illumination” control of the P1249 wind data display. This allows the P1249 Display to be mounted in an “over-head” console. A separate P1274 data sheet is available.

1.3.3 Weather Data Display: P1255 The P1255 Weather Data Display is housed in a DIN 43700 pattern (Din144 x 144) case and reads IEC 61162-1, NMEA 0183, “XDR” serial data to provide readings of barometric pressure; together with barometric trend, humidity, air temperature and seawater temperature.

Power supply

requirement is 24Vdc. The unit has two 256*64 pixel OLED Graphic displays, 4 Touch switches; for display mode and illumination control, 4 NMEA 0183 inputs and 1 NMEA 0183 output. Two “MODES” of operation are provided. In “Mode 1”, activated by pressing on the “Pr mBar” key, the top display will show barometric pressure and “trend”, with the lower display showing air temperature. In “Mode 2”, activated by pressing on the “Rh %” key, the top display will show humidity with the lower display showing water temperature. All temperature readings are shown in degrees Celsius, barometric pressure is given in millibars and humidity as %. The unit can thus be switched between “Modes” to display Barometric Pressure / “Trend” and Air Temperature, or Humidity and Water Temperature. Displayed readings meet the requirements of IEC 62288: 2008, for the presentation of navigationalrelated information on shipborne navigational displays. Operational controls likewise reflect the appropriate requirements specified within this standard.


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7080 Operation & Installation Handbook The P1255 installation drawing is 3423-A3-10; cut-out detail is 3347-A3-71. For separate connection diagram 3423-A3-11, refer to individual P1255 Data Sheet.

A P1276, wind indicator control, is also available, which allows remote “mode” and “illumination” control of the P1255 weather data display. This allows the P1255 Display to be mounted in an “overhead” console. A separate P1276 data sheet is available.


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7080 Operation & Installation Handbook 1.4 Wind Sensors Whilst the system can measure wind speed and direction by means of either; A) a separate cup unit and a separate vane unit, or B) a solid state masthead unit (combined type), P292, or C) a combined Walker cup and vane unit sensor, P296, or D) a combined Walker Wind and Weather Sensor, P1003, the most common means of measuring wind speed and direction is using B) or C) above. The solid state wind sensor, P292, is therefore covered in section 1.4.3, with the combined cup and vane sensor, P296, covered in section 1.4.4. For any other type of wind sensor, refer to appropriate data sheet/s.

Connection details for the 7080 system are as shown on the appropriate block diagram. This has to be read in conjunction with the layout drawings of the Transducer PCB and the 5 Channel I/O PCB for full connection information.

1.4.1 Cup Unit P299 Refer to separate Data Sheet covering supplied wind sensor.

1.4.2 Vane Unit P300 Refer to separate Data Sheet covering supplied wind sensor. 1.4.3 Solid State Wind Sensor. P292 (drawing 3342-2-7) The acoustic sensing technique coupled with state-of-the-art signal processing gives the head the ability to provide accurate measurement of wind speed and direction over an extensive range. The design overcomes the inherent problem of gust identification created by the slip streaming of traditional cup type anemometers and offers high performance without routine maintenance or calibration. A flanged tower carries the sensor assembly and the symmetrical arrangement of the acoustic chamber and the materials used results in a very robust and lightweight unit with no moving parts. The wind speed and wind direction measurements are made across the measurement plane within the transducer sensing area with the resultant information sent to the wind data display in NMEA0183 serial format. This digital signalling makes the cable length to the display arbitrary, unlike some


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7080 Operation & Installation Handbook traditional current loop driven devices, which may need compensation for cable resistance and can be susceptible to error created by induction along the cable. Correct orientation of the sensor is essential and this aspect is covered later; see section 2.8.2.2 “SENSOR ORIENTATION”. IMPORTANT: DO NOT REMOVE THE BLACK “RUBBER” TRANSDUCER CAPS. WARRANTY IS VOID IF THE BLUE SECURITY SEAL IS DAMAGED OR BROKEN, OR IF THE TRANSDUCER CAPS HAVE BEEN DAMAGED. Where two such sensors are specified and fitted; one on the port side and one on the starboard side, a manual sensor selector switch is available to provide for operator only selection of NMEA 0183 “MWV” serial data from the appropriate windward sensor. Alternatively a P1812 switch interface is available to provide automatic selection of serial data from the windward sensor. Note that the NMEA 0183 “MWV” sentence transmitted from the solid state wind sensor is read by the 7080 software before being re-transmitted to any fitted wind data displays or to other connected receiving equipment.

Transmitted sentence from the P292 is $WIMWV,xxx,R,xxx.x,N,A*hh ) Note that, at wind speeds above 120 knots, the status field will show V (invalid measurement).

1.4.4 Combined Cup and Vane Wind Sensor. P296 (Drawing 3343-2-30) The unit consists of a combined masthead unit incorporating wind speed and wind direction sensors, which are used to provide serial data of wind speed and wind direction. This unit consists of two distinctly different sections; an upper vane unit and a lower cup unit assembly. A] Cup Unit. The unit carries a cupset fitted to a stainless steel shaft, which runs in shielded bearings. A cap fitted to the shaft provides a labyrinth for protection against water ingress. The slotted end of the shaft, driven by the cupset rotates within an opto-switch carried on the lower PCB of a board assembly mounted within the carrying tube. Twice per revolution of the cupset, a square wave signal is produced which is fed directly to a microcontroller. The processor times the duration between successive pulses and, by using a stored look-up table, appropriate for the cupset concerned, the wind speed value is calculated.


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7080 Operation & Installation Handbook The cupset is initially supplied separately and will require fitting to the main unit prior to installation on the vessel. The procedure for fitting the cupset is given below. 1] Remove the retaining nut and the “seeloc” washer from the drive shaft at the bottom of the main unit of the P296 sensor. Hold the flanged cap, attached to the drive shaft, steady, in order for facilitate the unscrewing of the retaining nut. 2] Fit the cupset over the drive shaft ensuring that the location “pip” in the centre section of the cupset faces upwards and locates correctly in the hole in the flange of the cap. 3] Replace “seeloc” washer, re-attach retaining nut and, holding Cupset engaged in cap, securely lock the retaining nut down onto the washer. Rotate the cupset to check that it runs square with the drive shaft. B] Vane Unit. This unit carries a vane assembly fitted to a stainless steel shaft, which runs in shielded bearings. The vane cap forms a labyrinth for protection against water ingress. The vane is attached by two set screws diametrically opposite through the cap itself. The lower end of the shaft, driven by the vane, carries a circular magnet, which rotates above hall-effect sensors mounted on the upper pcb of the assembly mounted within the carrying tube. Signals produced as the vane rotates to take up a position determined by the wind are fed directly to a microcontroller for calculation of wind direction. The sensor, attached to a stainless steel arm and block assembly, is provided with a mounting bracket suitable for securing onto the horizontal surface of the mast top. Two fixing slots are provided in the base of the mounting bracket to allow for final alignment.

The P296 sensor transmits a NMEA 0183 sentence as follows: •

$WIMWV,x.x,R,x.x,N,A*hh

•

Note that both wind direction and wind speed fields are variable to xxx.x

•

Note that, at wind speeds above 100 knots, the status field will show V (invalid measurement).

Power supply requirement is 24Vdc and current consumption is 40mA.


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7080 Operation & Installation Handbook 1.4.5 Combined Wind and Weather Sensor P1003 Refer to separate Data Sheet covering supplied sensor.

1.5 Weather Sensor A P1002 weather sensor can be connected into the P1100 MEU for 7080 system expansion.

1.5.1 P1002 Weather Sensor Refer to separate Data Sheet covering sensor concerned.

1.6 General Materials Specification:

7070 Log Transducers and hull fittings. (used on 7080 system) Transducers can be supplied in the following materials.

Fixed type transducers made from LB4 bronze are for use in steel hulled and in wood/fibreglass hulled vessels. A fibreglass facing carries the sensing electrodes. The fibreglass is anti-fouled using: International Paints “Interspeed 2000”: White anti-fouling paint (non-conductive).

Fixed type transducers made from stainless steel; 316 S16 are for use in aluminium alloy hulled vessels. A fibreglass facing again carries the sensing electrodes. The fibreglass is again anti-fouled using: International Paints “Interspeed 2000”: White anti-fouling paint (non-conductive).

Hull Pads for steel hulled vessels are made from either, a) welding quality mild steel BS970 070M20 with the Phosphorous and Sulphur content, both equal to, or below, 0.045% or b) EN10025 5355J2G3.

Hull Pads for wood/fibreglass hulls are made from Aluminium Bronze NE5833 or equivalent. Hull Pads for aluminium hulls are made from Aluminium Alloy Grade NE4 [L44].


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7080 Operation & Installation Handbook Removable type log transducers are available for :a.

steel hulled vessels.

b.

wood/fibreglass hulled vessels.

Both types are made from extruded brass tube CZ121.

A fibreglass facing carries the sensing electrodes. The fibreglass is anti-fouled using: International Paints “Interspeed 2000” : White anti-fouling paint (non-conductive).

A seavalved hull fitting assembly is provided for housing the removable transducers. Two types are available; one for steel hulled vessels, the other for wood/fibreglass vessels. For steel hulls :Hull Pad is made from either a) welding quality mild steel BS970 070M20 with the Phosphorous and Sulphur content, both equal to, or below, 0.045% or b) EN10025 5355J2G3; to meet required international welding specifications.

For wood/fibreglass hulls :Hull Pads are made from aluminium bronze. The Sea Valve is made from bronze to BS1400 LG2c and manufacturers Certificate of Conformity, Material Certification and Pressure Test Certificate are held on file. The seavalve hull fitting assembly is further subjected to a factory pressure test, which may be witnessed by a Lloyds surveyor if required by customer, and stamped accordingly.

7080 Displays / Indicators.

Uses Din 43700 pattern: Din 144 x 144 enclosure. Casing is Aluminium Alloy. Inner Frame: Zinc; die-cast and Outer bezel is moulded in black Polycarbonate. Front Window is Allyl Carbonate: Printed on rear face. Case back is Aluminium Alloy.


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7080 Operation & Installation Handbook Note : The above specifications may be altered without notice. Any changes made would not affect the functioning of the equipment and hull integrity would not be compromised.

1.7 Applicable Standards The 7080 Log system conforms to the requirements set out in the following International Standards: IEC 61023 Ed. 3.0 (2007) IEC 61162-1 Ed. 4.0 (2010) including IEC 61162-1 Corrigendum 1 (2013) IEC 60945 Ed. 4.0 (2002) + /Corr.1 (2008) IEC 62288 Ed. 2.0 (2014)


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7080 Operation & Installation Handbook 2. INSTALLATION 2.1 All Log Transducers The transducer will operate best if it is mounted in the forward part of the vessel, provided that under normal operating conditions, it remains in “solid” water. It must be ed that in high speed planing craft, the fore part will be out of the water at high speeds and it will be necessary to choose a position somewhat further aft than on a displacement vessel of similar size. Care should also be taken to position it clear of any docking blocks. Internally, a dry space is required with access for servicing and away from any potential source of electrical interference such as large generators or cables carrying heavy currents.

A ‘boundary layer’ condition exists beneath any vessel. Within this layer, the velocity of the water differs from the true speed of the vessel through the water. As the sensing position is moved further aft, the thickness of this layer increases. This results in the signals from the transducer getting smaller and smaller. For this reason, the transducer should always be placed well forward. Where a bow thrust propeller is fitted to the vessel, a position below the athwartship’s tube and slightly forward of the tube centre line in a fore and aft direction may be found satisfactory and will often provide reasonable access inside the hull for wiring and servicing.

In addition to boundary layer considerations, it is generally found that a steadier speed indication is obtained from a forward fitted transducer. It should be ed, of course, that the transducer MUST remain in ‘solid’ water under all reasonable sea conditions and when the vessel is in ballast.


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7080 Operation & Installation Handbook 2.2 Fixed Log Transducers (drawings 2849/3/59,50,51) The shell plating should have a hole cut in it to take the steel reinforcing pad (Item 1). THE TRANSDUCER MUST NOT REMAIN FITTED TO THIS PAD WHILST IT IS BEING WELDED TO THE HULL. It is not necessary for the axis of the transducer to be vertical when the vessel is viewed from the bow and normally no tapered pad will be necessary for its correct fitting. Having carried out the welding as shown in drawings 2849/3/59 and 2849/3/50, the pad should be allowed to cool and be examined for any ‘splashes’ of metal from the welding which may have stuck to the facing, or in the recess into which the transducer is fitted. It is essential that the face of the pad onto which the ‘O’ ring fits should be absolutely smooth in order to obtain a perfect seal. After welding, the external surface of the pad must be painted with a suitable smooth anti-fouling paint both to protect against corrosion and to ensure a clean surface over which the water can flow. The cable for the transducer is then ed through the aperture in the steel pad until most of it is within the vessel. A suitable flexible sealing compound should be smeared generously on the ‘O’ ring and the surrounding area of the transducer.

The transducer is then offered up to the pad and carefully inserted, making sure it’s ‘O’ ring stays in its correct position in the groove of the transducer flange. The transducer should be pushed up into the pad as far as possible where it will remain in position due to the adhesion caused by the sealing compound.

The stainless steel retaining ring (Item 2) should be ed over the cable and screwed onto the top of the transducer with the three stainless steel socket head screws slackened back so that the ring can be screwed down as far as the steel pad. By tightening the three socket head screws, little by little, the transducer body will be drawn up into its final position and the sealing compound forced out in an annular ring round the edge of the transducer flange outside the vessel. The retaining ring (item 2) will probably require repositioning i.e. screwing down a bit further as the sealing compound is forced out. The arrow on the top of the transducer must finally be aligned towards the flow of water, which is normally from the bow of the vessel, but may be a few degrees different where the curvature of the hull is such as to change the direction of the flow when the vessel is under way. The retaining ring should be finally screwed down as far as possible by hand and the three socket head screws evenly tightened until the transducer is secure and the ‘O’ ring compressed.


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7080 Operation & Installation Handbook Finally, wipe off the excess sealing compound from the transducer face MAKING SURE THAT THE ELECTRODES THEMSELVES (Item 3) ARE COMPLETELY CLEAN AND FREE FROM ANY GREASE, ANTI-FOULING PAINT etc. Ensure that the external part of the steel pad has been anti-fouled and provides a smooth surface over which the water can flow. Any anti-fouling used on the transducer face must be non-conductive and at all times the electrode beads must be clean and free of any paint or grease.

For aluminium alloy hulls the above procedure still applies, but the hull reinforcing pad is made from a suitable welding quality alloy and the transducer itself is manufactured in stainless steel and not bronze as referred to above.

Wood/fibreglass Hulls (drawing 2849/3/50) A bronze cased transducer is used having a longer body than for steel hulls, in view of the extra thickness of the planking in wooden vessels. The reinforcing pad is replaced by an external bronze pad to be screwed or bolted to the hull concentrically with a hole of the appropriate diameter through the hull itself. A gasket is supplied for fitting between the pad and the hull and a suitable sealing compound should be used on both sides of that gasket before installation. The screws or bolts retain the pad in place when the transducer is removed from the hull.

2.3 Transducers with a seavalve (drawings 2900/4/1-1, 2905/4/2-1) Two versions of the skin fitting with seavalve are available. One for steel hulls and the other for wood/GRP.

2.3.1 Skin fitting with seavalve for steel hulls (drawing 2900/4/1-1) The valve is bolted to a steel reinforcing pad by means of the studs provided and a gasket fitted between the two faces. The steel pad is welded both internally and externally to the shell plating. After welding the external surface of the pad must be painted to protect against corrosion and to ensure a clean surface over which the water will flow.


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7080 Operation & Installation Handbook A brass flange containing an “O” ring seal is bolted to the top of the valve. A second “O” ring is compressed between the top of this flange and the flange on the transducer. Two steel pillars project upwards from the valve and a steel bridge piece holds them in position at the top. A stainless steel lead screw is permanently fitted with a cross bar for rotation and hence provides for the raising and lowering of the transducer. This screw rotates in a bronze nut fastened to the centre of the bridge piece, and has the transducer attached to its lower end.

With the lead screw rotated anti-clockwise to the limit of its travel, the lower face of the transducer is approximately 10mm above the gate valve, which can, therefore, be closed.

By unbolting the upper bridge piece, the lead screw and transducer can be removed from the assembly.

A hole 154mm in diameter is cut in the hull. The seavalve should be detached from the steel pad, together with the lower gasket. The pad is then ed through the hole in the hull and welded both internally and externally. Note that the position of the tapped holes relative to the fore and aft line is not important, but the seavalve hand wheel can only be set in one of four positions. Where the position of the hand wheel is critical, it is suggested that the pad be tacked in place and the valve offered up to the pad temporarily, to ensure that the hand wheel is accessible. The valve should then be removed while the welding is completed. When the pad is cold the seavalve and its gasket should be positioned on the pad and fastened with the studs/nuts/washers provided.

The upper flange of the valve will have been supplied with the pillar assembly already in position. To fit the transducer, remove the two bolts/washers (Items 3 and 4) and detach the upper bridge piece (item 5) and lead screw (item 6). From the lower bridge piece (item 7) unbolt the two short pillars (items 8 and 9) and screw them into the top flange of the transducer. Attach the lead screw and lower bridge piece to these pillars with the hex head bolts supplied.


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7080 Operation & Installation Handbook With the seavalve closed, the transducer is entered into the upper flange and seal using a little grease on the brass tube. Keep the bridge piece in line with the main pillars so that when the transducer has entered the ‘O’ ring seal, it is not forced down onto the valve gate and damaged. The bridge piece should come to rest in its correct position against the tip of the pillars before the face of the transducer makes with the valve gate. DO NOT ALLOW ANY GREASE TO GET ON THE BOTTOM FACE OR ELECTRODES.

Refit the bolts (item 3) not forgetting the lock washers. With the lead screw fully anti-clockwise the lower face of the transducer clears the valve gate, and therefore the valve can now be opened fully and the transducer wound down to its working position. This is with its lower face flush with the face of the steel pad.

The transducer has a dot or arrow engraved on its flange and this should point forward into the flow of water with the vessel moving ahead. The alignment can be corrected by using a bar or large screwdriver as a lever placed between the two short pillars (item 8) BEFORE the transducer is fully lowered into position.

When fitting a replacement with the vessel afloat, it will be necessary to open the valve slightly once the transducer has entered the ‘O’ ring seal. Otherwise the water trapped between the valve gate and its bottom face will prevent the transducer being fully entered into the valve chamber.

2.3.2 Skin fitting with seavalve for wood/GRP hulls (drawing 2905/4/2-1) The valve is bolted through the hull to a bronze fairing block by means of studs provided. A brass flange, containing an ‘O’ ring seal for the transducer is bolted to the top of the valve. Two steel pillars project upwards from the flange/valve and a steel bridge holds them in position at the top of the assembly.

A stainless steel lead screw is permanently fitted with a cross bar for rotation and hence provides for the raising and lowering of the transducer. This screw rotates in a bronze nut fastened to the centre of the bridge piece with the transducer attached to its lower end. Rotation of the lead screw causes it to be raised or lowered.


Page 25

7080 Operation & Installation Handbook

With the lead screw rotated anti-clockwise to the limit of its travel, the lower face of the transducer is approximately 10mm above the gate valve, which can therefore be closed. By unbolting the upper bridge piece, the lead screw and transducer can be removed from the assembly.

IMPORTANT : The Hull may need localised strengthening around the position of the seavalved skin fitting. This is more likely to be required in the case of GRP hulls and the installer must take note of GRP thickness at the position concerned. Weights involved are: Transducer

:

11.3 kg (including 50m cable)

Seavalved skin fitting

:

24.7 kg

A hole 70mm in diameter is cut in the hull. The bronze fairing block should have the four studs screwed into it and offered up to the hull, having previously drilled four corresponding holes using the spacer (item 1) as a template.

Note that the orientation of the seavalve is not important and it should be positioned so that there is easy access to the hand wheel for opening and closing. The brass liner (item 2) should be inserted through the hull and into the fairing block, and the spacer (item 1) dropped over the liner and clamped down against the planking using the nuts provided. The thickness of the planking will not be known in advance and it is necessary for the liner to project above the spacer (item 1) by 8mm. After marking, cut or machine the liner to the correct length. It is essential that no ‘frays’ or sharp edges be left at either end which could prevent the transducer from ing through.

Having removed the liner and machined it, the fairing block and studs should be well covered with a suitable sealing compound and repositioned in the hull. The spacer should also be coated with a sealing compound paying particular attention to any irregularities in the planking as it is essential that a water-tight t is produced between this spacer and the planking. A gasket (item 3) is positioned over the studs together with the sleeve (item 4) which helps the valve. The valve should then be fitted to the assembly and bolted down by using the nuts and washers provided. The design is suitable for hulls up to 75mm thick. For thinner hulls, it may be necessary to shorten the studs so they clear the valve body.


Page 26

7080 Operation & Installation Handbook The upper flange of the valve will have been supplied with the pillar assembly already in position. To fit the transducer, remove the two bolts/washers (items 5 and 6) and detach the upper bridge piece (item 7) and lead screw (item 8), from the lower bridge piece (item 9). Unbolt the two short pillars (item 10) and screw them into the top flange of the transducer.

Attach the lead screw and lower bridge piece to these pillars with the hex head bolts supplied.

With the seavalve closed, the transducer is entered into the upper flange and seal above the valve, using a little grease on the brass tube. Keep the bridge piece in line with the main pillars so that when the transducer has entered the ‘O’ ring seal, it is not forced down onto the valve gate and damaged. The bridge piece should come to rest in its correct position against the top of the pillars before the face of the transducer makes with the valve gate.

DO NOT ALLOW ANY GREASE TO GET ON THE BOTTOM FACE OR ELECTRODES.

Refit the bolts (item 5) not forgetting the lock washers. With the lead screw rotated fully anticlockwise, the lower face of the transducer clears the valve gate and, therefore, the valve should now be opened FULLY and the transducer wound down to its working position. This is with its lower face FLUSH with the face of the fairing block. The two nuts on the upper part of the lead screw should be rotated until the lower one is tight against the bronze nut in the upper bridge piece. The second nut is locked tightly against the other, so that at any future date, the transducer can be removed and refitted or replaced in the knowledge that the face of the transducer will indeed be flush with the outer face of the fairing block when wound down to this pre-determined position. THIS INITIAL SETTING PROCEDURE MUST BE DONE WITH THE VESSEL OUT OF THE WATER. When fitting a replacement transducer with the vessel afloat, it will be necessary to open the valve slightly once the transducer has entered the ‘O’ ring seal. Otherwise the water trapped above the valve gate will prevent the transducer being fully entered into the valve chamber.

The transducer has a dot or arrow engraved on its flange and it should point forward into the flow of water, with the vessel moving ahead. This alignment can be corrected by using a bar or large


Page 27

7080 Operation & Installation Handbook screwdriver as a lever and placing it between the two short pillars (item 10) BEFORE it is completely lowered into position. The lead screw should be tightened down fully clockwise, using the cross bar fitted and HAND PRESSURE ONLY.

2.4 Log Transducer and cabling Transducers are fitted with 50m of cable. The cable is permanently attached to the transducer and great care must be taken not to damage it. It is a special cable containing two twisted pairs, one pair screened, the other pair unscreened, with a final outer screen. One pair carry the a.c. supply energising the coil to produce a magnetic field in the “solid” water beneath the transducer face. The other pair is connected directly to the two sensing electrodes and brings the low level a.c. signal back from the ‘single turn’ generator formed by the “solid” water within the magnetic field at any instant.

It is the low level of this voltage, proportional to the vessel’s speed, which can cause problems when other unrelated a.c. voltages are induced into the cabling and interfere with the signal being measured. For this reason it is preferred that the transducer cable is encased in a solid steel pipe up to within a few centimetres of the Electronics Unit. Although the speed signal is synchronously detected after amplification, other high level induced voltages can interfere with the correct operation of the log. The steel pipe provides magnetic screening from adjacent cables carrying heavy alternating currents for other equipment. The normal non-ferrous braiding or screening does not prevent such pick-up. It is also good practice to use this pipe for earthing the electronics unit to the skin fitting or the hull adjacent the skin fitting, thus minimising any large earth current loops. This is particularly so, when problems are experienced with interference from high power MF & HF radio transmitters.


Page 28

7080 Operation & Installation Handbook 2.5 Electronic / Control Unit; P1100 The electronic unit is contained in a metal box for bulkhead mounting. The unit can be considered as “splashproof” and all cable entries are glands. The mounting straps can be positioned either horizontally or vertically and the change is affected by slackening the retaining screws visible at the outside corners of the unit, and the straps repositioned as required before finally re-tightening the screws concerned. IF THIS PROCEDURE IS CARRIED OUT, ENSURE THAT THE SCREWS ARE TIGHTENED SUFFICIENTLY TO ENSURE ELECTRICAL CONTINUITY BETWEEN MOUNTING STRAPS AND CASING. It is intended that the unit is mounted close to the log transducer so that the transducer cable is kept as short as possible. The Electronic Unit must be in a position where it is protected from water. Access to the unit is necessary for diagnostics, servicing and log calibration purposes. The d.c. supply for the P1100 may either be taken directly into the electronic unit using its own on/off switch, or alternatively the unit’s switch may be left permanently on and a separate on/off switch connected in the supply to the log, and positioned to suit the particular installation. The latter is recommended as the d.c. supply, connected into the 24Vdc input on the 5 Ch. I/O board, means that the P1100’s own on/off switch does not totally isolate the instrument.

2.5.1 Wiring: When connecting cables during installation, personnel involved must take full ESD (electrostatic discharge) precautions. The wearing of a suitable “grounding strap” is recommended.

2 core screened cable (0.5 CSA), is required for connecting to the 200 ppNM relay s in the Electronic Unit. 2 core screened cable (0.5 CSA), is required for connecting to any IEC 61162-1 (NMEA 0183) serial input or output on the 5 Channel I/O board in the Electronic Unit.


Page 29

7080 Operation & Installation Handbook 2 core screened cable (0.5 CSA), is required for connecting to the IEC 61162-1 (NMEA 0183) serial outputs on the Transducer PCB in the Electronic Unit.

Always refer to the appropriate system block connection diagram.

NOTE that the casing of the Electronic Unit must have a good low impedance earth. Consequently, a suitable bonding must be provided directly to the ships earth from the unit. The steel pipe containing the transducer cable should be bonded at its upper end to the Electronic Unit, and the lower end of the steel pipe bonded to the hull adjacent to the transducer. On wood/GRP vessels it is even more essential to have a good earth connection and it is suggested that such earthing be through to the steel pipe containing the transducer cable and the transducer skin fitting at the lower end. In the interests of EMC, wherever practicable, cable screens should be bonded to earth. In the Electronic Unit, there are connection points provided for screen connections.

Due to variances in the outside diameter of the transducer cable it may be advantageous to use a smear of silicone grease on the outside of this cable before ing it through the gland concerned.

2.6 Power supply Power should be supplied as a nominal 24 volts d.c. This incoming supply is stabilised down to 15 volts for use with the EM log and 5 volts for the microprocessor circuits. The Wind Interface also has it’s own voltage converter, running from the 24 volts supply. Provided the power supply for the log is free of any “ripple”, the log will function correctly with voltages from 19V minimum to 31.2 V maximum. Where the power is obtained from an a.c. mains power unit fitted to the vessel for this or other purposes, it may be found that a.c. “ripple” is superimposed on the d.c. output. In such cases, it is ESSENTIAL that the instantaneous voltage available never drops below 19V. If there is any doubt as to the suitability of the ship’s 24 volt d.c. supply and a.c. mains is available, it would be advisable to fit a small power unit specifically for the log. This power supply unit (P1010) is shown on drawing 3389-A3-7. Power consumption (typical system): 20w (DC). Note: power surge, at switch on, 1.75A max. for 500msec.


Page 30


2.7 7070/7080 Displays / Indicators These units can be mounted directly into a , with a cut-out suitable for a DIN 43700 case (144mm square bezel), as shown on drawing 3347-A3-71. This necessitates access to the rear of the , in order to fit and tighten the securing clamps provided. Alternatively, a cut-out, as shown on drawing 3419-A3-15, will allow the display to be fitted using the optional 02-071 mounting plate. Rear access would not be required if fitting in this way. Power can be supplied from the P1100, 7080 Electronics Unit or from a local 24 volt d.c supply. Note, however, that the (master) P1248 Log Data Display MUST share the same 24Vdc supply as the P1100 7080 Electronics Unit with the “reset” link on the Transducer PCB in the standard R.H. position. (The Transducer PCB does have the ability to cope with a situation where the main log data display can only be fed with a different 24Vdc supply from that feeding the Electronics Unit. Information is given in section 2.7.1 below). All terminals are situated on the rear of the indicator casing, and cable connections can be made before the instruments are fitted into the .

2.7.1 Wiring: When connecting cables during installation, personnel involved must take full ESD (electrostatic discharge) precautions. The wearing of a suitable “grounding strap” is recommended.

The main P1248 Log Data Display (speed and distance indicator) requires a 3 x twisted pairs cable with overall screen (cores 0.5 CSA min), for NMEA, power & “reset”. Note again that this indicator would normally share the same 24Vdc supply as the P1100 master electronics unit. Additional P1248 Log Data Display/s would normally require a twin twisted pair cable (0.5 CSA min), for NMEA and power, which could be provided via the main P1248 Log Data Display. Refer to the P1248 connection diagram, 3419-A3-11 for full information.


Page 31

7080 Operation & Installation Handbook The relay; RLY1 (N.O. and Com connections) of the main, or single, P1248, can be used to reset the TRIP distance in the LOG. RLY1 will be active for 1 second after the TRIP RESET button has been pressed for 5 seconds. This 5 seconds activation time is implemented to prevent accidental operation and reset of Trip distance. The display will automatically go to Display Mode 2 (Log Speed and Trip Distance) after TRIP RESET has been pressed. For TRIP RESET operation, with a common 24Vdc supply to both the P1248 and P1100 Master Electronics Unit (MEU), connect Terminal 12 on the LOG transducer board, in the MEU, to RLY1(N.O.) on the P1248 and connect RLY1(Com) to 0V, using permanent link on rear of the P1248 Display. The option link on the P1100 MEU transducer board must be in the Right Hand position (centre and R.H pin connected). See drawing 3419-A3-11 sheet 2. For TRIP RESET operation with an independent 24Vdc supply into the main or single P1248 Display, connect Terminal 11 on the LOG transducer board, in the P1100 MEU, to the independent +24V. Connect Terminal 12 on the LOG transducer board, in the MEU, to RLY1(N.O.) on the P1248 and connect RLY1(Com) to the independent 0V, again using permanent link on rear of the P1248 Display. Note that the option link on the P1100 MEU transducer board must be in the Left Hand position (centre and L.H pin connected) for this configuration.

The P1249 wind data display, and P1255 weather data display both require a 2 core screened cable (0.5 CSA), for NMEA, together with a separate 2 core screened cable (0.5 CSA), for power.


Page 32

7080 Operation & Installation Handbook 2.8 Wind Instruments

IF WIND SENSORS OTHER THAN THE P292 OR P296 ARE EMPLOYED, REFER TO DATA SHEETS FOR THE SENSORS SUPPLIED WITH THE SYSTEM.

2.8.1 Solid State Wind Sensor: (Ref: P292) The unit should be mounted as high as possible in air which is undisturbed by movement over and around any structures and in a position to ensure a clear azimuth. The base flange must be attached to a suitable horizontal platform. For shipborne use, fitting high on the main mast is recommended as under adverse sea state conditions there would be less possibility of the sensor being frequently washed with sea water than if mounted forward. Always check the installation to ensure the solid state sensor is not affected by other equipment operating locally, which may not conform to current standards, e.g. radio/radar transmitters, engines, generators etc. Guidelines: •

Avoid mounting in the plane of any radar scanner – a vertical separation of at least 2m should be achieved.

•

Radio transmitting antennas; the following minimum separations (all around) are suggested:-

•

•

VHF IMM – 1m

•

MF/HF – 5m

•

Satcom – 5m (avoid likely lines of sight)

Ensure that the system is connected in accordance with the diagram supplied and that if a junction box is used ensure that cable screens are connected through to maintain EMC integrity.

2.8.1.1 Wiring: The P293 sensor cable supplied is 4 core with an overall screen and has the connector attached. Standard cable length is 20 metres, but longer lengths; up to a maximum of 200 metres, can be supplied to order. The cable must be secured at regular intervals to eliminate any strain on the attached connector when mated with the sensor lead and also to prevent chafing. Mated


Page 33

7080 Operation & Installation Handbook connector is rated at IP68. The cable is considered to be “class 2” in respect of its carried low voltage power and signal levels. Refer to section 2.8.3 and sub-sections 2.8.3.1 / 2.8.3.2 for full details concerning cable installation.

Cable information is as follows: Power:- Red: = +24Vdc, Blue = -ve, (P292 power consumption 20mA max) Yellow = NMEA 0183 Signal Line A, Green = NMEA 0183 Signal Line B, Screen = Ground. (Cable Assembly = ref: P293; if requiring replacement always specify length (or suffix letter; if known). 2.8.1.2 Sensor Orientation: Orientation of the sensor tower is important. The unit must be mounted vertically on its base mounting flange so that the datum marks; two arrows, a blue rectangle, and an alignment notch, point directly along the required measurement axis. On a vessel this would be pointing forward, towards the bow and be parallel with the fore-aft axis. On a static installation the sensor should be aligned with the datum marks pointing towards North. Provision must also be made for exiting the flying lead / connector beneath the sensor flange prior to connection; see drawing 3342-2-7. On installation, always ensure that the connector is securely mated. Slots in the base mounting flange allow for any final adjustment that may be deemed necessary to attain correct alignment. Simply slacken the three bolts concerned and rotate the unit on its base. Resecure when the correct alignment is achieved. If part installation is carried out with either the sensor assembly or the down cable assembly being fitted then it is important to protect the appropriate connector from the elements until it can be mated with its other half. IMPORTANT: The sensor is a precision instrument and care should be taken when handling. If the unit is removed at any time, ensure that the in-line connector attached to the cable is suitably protected from the elements until such time as the sensor is refitted. DO NOT REMOVE THE BLACK “RUBBER” TRANSDUCER CAPS.


Page 34

7080 Operation & Installation Handbook WARRANTY IS VOID IF THE BLUE SECURITY SEAL IS DAMAGED OR REMOVED. 2.8.1.3 Cleaning: If there is any build up of deposit on the sensor unit, it should be gently cleaned with a cloth, moistened with soft detergent. Solvents should not be used, and care should be taken to avoid scratching any surfaces. If exposed to extreme low temperatures and precipitation causing a build up of ice in the measuring chamber, the unit should normally be allowed to defrost naturally. However, tepid water can be sprayed onto the unit to speed up the process if required. Do NOT attempt to remove ice or snow with a tool. Do NOT remove the black “rubber” transducer caps.

2.8.1.4 Servicing: There are no moving parts or -serviceable parts requiring routine maintenance. Opening the sensor unit or breaking the security seal will void the warranty and the calibration. In the event of failure it is recommended that all cables and connectors be checked for continuity, bad s, corrosion etc. If it is necessary to remove the sensor unit at any time, do not separate the sensor from its flanged tower but remove as a complete unit after disconnection of the masthead connector. Protect both halves of the separated connector from the elements until reconnection can be carried out.


Page 35

7080 Operation & Installation Handbook 2.8.2 Combined Cup and Vane Wind Sensor: (Ref: P296) The unit should be mounted as high as possible in air which is undisturbed by movement over and around any structures and in a position to ensure a clear azimuth. For shipborne use, fitting high on the main mast is recommended as under adverse sea state conditions there would be less possibility of the sensor being frequently washed with sea water than if mounted forward. Always check the installation to ensure the combined sensor is not affected by other equipment operating locally, which may not conform to current standards, e.g. radio/radar transmitters, engines, generators etc. Guidelines: •

Avoid mounting in the plane of any radar scanner – a vertical separation of at least 2m should be achieved.

•

Radio transmitting antennas; the following minimum separations (all around) are suggested:-

•

•

VHF IMM – 1m

•

MF/HF – 5m

•

Satcom – 5m (avoid likely lines of sight)

Ensure that the system is connected in accordance with the diagram supplied and that if a junction box is used ensure that cable screens are connected through to maintain EMC integrity.

2.8.2.1 Wiring: The P293 sensor cable supplied is 4 core with an overall screen and has the connector attached. Standard cable length is 20 metres, but longer lengths; up to a maximum of 200 metres, can be supplied to order. The cable must be secured at regular intervals to eliminate any strain on the attached connector when mated with the sensor and also to prevent chafing. Mated connector is rated at IP68. The cable is considered to be “class 2” in respect of its carried low voltage power and signal levels. Refer to section 2.8.3 and sub-sections 2.8.3.1 / 2.8.3.2 for full details concerning cable installation.


Page 36

7080 Operation & Installation Handbook Cable information is as follows: Power:- Red: = +24Vdc, Blue = -ve, (P296 power consumption 40mA max) Yellow = NMEA 0183 Signal Line A, Green = NMEA 0183 Signal Line B, Screen = Ground. (Cable Assembly = ref: P293; if requiring replacement always specify length (or suffix letter; if known).

2.8.2.2 Sensor Orientation: (Refer to drawing 3343-2-30) The Masthead Mounting Bracket (A) must be securely fastened to the mast top using machine screws, self-tapping screws or pop rivets. Note that hexagon head set screws are recommended as these will more readily allow for tightening after final adjustment is made to ensure correct alignment. Make sure that before drilling the mast top, the Mounting Bracket (A) can lie fore and aft, and that there is room for the Main Unit (B) and for its connecting P293 cable assembly. Ensure that the Mounting Bracket (A) is correctly aligned; so that the Main Unit points directly forward, towards the bow of the vessel, before finally locking the bracket into position by tightening the screws concerned. Slots in the base of the mounting bracket allow for this adjustment. Note that the sloping top edges of the mounting bracket are to the rear.

Having visually aligned the Mounting Bracket (A), sufficiently tighten the securing screws used to hold the bracket in position. Re-fit the main unit (B); the combined wind sensor, arm and block assembly, and secure, using the four M5 pozi-pan head screws and lock washers (C) provided; two on each side of the bracket. With the P293 cable assembly connected, hold the vane steady, as if the vessel is “head to wind”, and check with bridge personnel that the reading, on the fitted digital wind display, is 0º. If necessary, adjust the position of the mounting bracket until the required result is achieved. Lock the mounting bracket in position when correct alignment has been achieved. If the combined sensor is not going to be fitted immediately ensure that the connector of the P293 cable assembly is protected from the elements until such time as the P296 is fitted. The 4 core screened cable of the P293 is fed through the mast using suitable synthetic rubber grommets top and bottom, or appropriate glands. If the cable is brought down the mast externally, it should be secured at regular intervals to prevent chafing. Leave enough slack cable at the mast top to allow the connector to be attached and to be removed from the P296 main unit (B).


Page 37


If the P296 is to replace an earlier Walker combined masthead unit, it is likely that an original Walker mounting plate is fitted directly to the mast top. This flat plate will be found to contain two threaded studs, protruding vertically, which will align with the slots in the P296 mounting bracket (A). The nuts and washers, attached to these studs, must be removed and the mounting bracket (A), with the main unit (B) attached, positioned over the studs, and the washers and nuts re-fitted. The P296 must then be correctly aligned, fore – aft, as described above, before locking it securely in position on the fitted mounting plate using the nuts and washers concerned.

On installation, always ensure that the P293 connector is securely mated. If part installation is carried out with either the sensor assembly or the down cable assembly being fitted then it is important to protect the appropriate connector from the elements until it can be mated with its other half. IMPORTANT: The sensor is a precision instrument and care should be taken when handling. If the unit is removed at any time, ensure that the in-line connector attached to the cable is suitably protected from the elements until such time as the sensor is refitted.

2.8.2.3 Cleaning: If exposed to extreme low temperatures and precipitation causing a build up of ice, which may prevent the rotation of the vane or cupset, the unit should normally be allowed to defrost naturally. However, tepid water can be sprayed onto the unit to speed up the process if required. Do NOT attempt to remove snow or ice with a tool.

2.8.2.4 Servicing: There are no -serviceable parts requiring routine maintenance.


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7080 Operation & Installation Handbook In the event of failure it is recommended that all cables and connectors be checked for continuity, bad s, corrosion etc. Check that both cupset and vane are able to rotate freely. If it is necessary to remove the sensor unit at any time, first unscrew and release the P293 cable connector from the back end of the P296 unit and protect the in line connector of the P293 from the elements. Release and remove the M5 screws and lock washers from the sides of the mounting bracket and remove the P296 main unit; the combined wind sensor, arm and block assembly. Re-fit the screws and lock washers to the mounting block on the main unit for safe keeping.

The cupset can be replaced if damaged. Replacement cupset re-order code is 01-034-296 and whilst replacement fitting instructions are also included, the procedure is given below.

Note: For replacement purposes, if accessibility to the fitted sensor is difficult then, rather than attempt replacement of the cupset at the fitted position, it is recommended that the main unit of the sensor be removed, as outlined previously, and replacement of the cupset carried out elsewhere. to protect the disconnected cable connector from the elements whilst the main unit is removed.

Procedure: 1] Hold Cupset securely by hand and with spanner, slacken, unscrew and remove retaining nut together with “seelok” washer. 2] Remove Cupset by lowering vertically off drive shaft. 3] Replace new Cupset ensuring that pip in centre section is correctly located in hole in flange of cap. 4] Replace “seelok” washer, re-attach retaining nut and, holding Cupset, engaged in flange of cap, securely lock retaining nut down onto washer. If remote changing of the cupset was carried out: 5] Re-fit the main unit of the sensor securely back onto its mounting. Ensure that original alignment is maintained. 6] Re-connect the P293 cable connector checking that it is correctly and securely mated.


Page 39


Vane replacement: In the event of damage to the fitted vane, the main unit must be removed, as outlined earlier, and returned to John Lilley and Gillie Ltd, for replacement of the vane to be carried out.


Page 40

7080 Operation & Installation Handbook 2.8.3 General Information – Installation of Cables. Low voltage cables can normally be split into at least four classes where each class runs along a different route, only bundled with, or in close proximity to, cables from its own class. Cable classes would ideally not cross over each other but where they must cross, they should do so at right angles. If classes are more than one class apart additional metal screening may be required where crossing occurs. 2.8.3.1 Cable classes. Class 1 is for cables carrying very sensitive signals. Low level analogue signals such as millivolt output transducers (i.e. the Walker log transducer) and radio receiver antennae are in Class 1A. Highrate digital communications such as Ethernets are in class 1B. Classes 1A and 1B should not be bundled together, although their bundles may be run adjacent to each other.

Class 2 is for cables carrying slightly sensitive signals, such as ordinary analogue (i.e. 4-20mA, 010v and signals under 1MHz), low rate digital communications (i.e. RS422, RS485), and digital (i.e. on/off) inputs and outputs (e.g. limit switches, encoders, control signals). Cables carrying NMEA 0183 serial data, or other available analogue signals, from the 7070 master unit are included in this class, as are the connecting cables from the Walker Wind Sensors, Weather Sensor and Water Temperature Sensor.

Class 3 is for cables carrying slightly interfering signals, such as low voltage AC distribution (<1kV) or DC power equal to or above 48v. This class also covers control circuits with resistive or inductive loads where the inductive loads are suppressed at the load.

Class 4 is for cables carrying strongly interfering signals. This would include all the power inputs or outputs, to or from, adjustable speed motor drives, power converters; and their DC links. Cables to RF transmitting antennae and unsuppressed inductive loads are also included in this class.

Class 5 and 6 are reserved for MV and HV supply distribution cables respectively. Note that any other cable classes in proximity to these would need to be protected by additional screening or very much greater spacing.


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7080 Operation & Installation Handbook 2.8.3.2 Segregation distances Recommended minimum spacings between cable classes, based on a 30 metre run of cables held close within a parallel earth conductor (PEC) which could be a tray, open (or closed) duct or solid metal conduit are shown in the diagram below. Longer parallel runs should use pro-rata greater spacings. Note that if longer runs are involved, multiply the stated spacings by a factor given by: length (in metres) ÷ 30.

CLASS 1 cables

150mm

CLASS 2 cables

300mm

CLASS 3 cables

150mm

CLASS 4 cables

450mm 450mm 600mm

PEC (parallel earth conductor) e.g. cable tray

Class 5 cables are not shown in the diagram above but should be at least 150mm spacing from Class 4, with Class 6 at least a further 150mm away. Where any such MV or HV cable is within 1 metre of a Class 1 cable, the Class 1 cable should be run in a covered metal duct. Greater spacings generally give lower coupling (crosstalk) between cables; however the acceptable amounts of coupling will always depend on the types of cables, the installation techniques used, the electronics connected to each end of the cables and the functional requirements of the application. Running individual cable classes in their own closed metal duct or round conduit PECs allows the spacing between classes to be reduced (even to zero), but it is still best to avoid running classes 1 and 4 close together.

Note that type approved equipment that includes IEC60945 certificated accreditation will be immune from interference levels stated in the standard, providing that the installation of the said equipment has been carried out strictly in accordance with manufacturer’s instructions.


Page 42

7080 Operation & Installation Handbook 2.9 Setting up the P1100 (7080) When the P1100 (7080) is first installed there are some operations that MUST be carried out. Note that FLOW DIAGRAMS are supplied to cover all keying operations and supplement the keying information contained in this handbook. In any situation where the system requires the operator to enter a number, then the [E] key will be used as an [Enter] key. All keys pressed by the operator, as described in this manual, are indicated by italics.

2.9.1

Switching On and Configuring the P1100 (7080)

1

SWITCH ON. The screen in the left hand LCD display will initially show the U firmware version loaded, before reverting to show “P1100 (LOG)” with “UNCALIBRATED” given below. This is the normal “run screen” (after calibration would display “P1100 (LOG)” above with “CALIBRATED” below – if log was disabled would display “P1100 (LOG) above with “DISABLED” below). The main LED speed display will show an indeterminate “XX.X” speed value with Trip distance, initially at zero in the lower main display. To enter the set-up routine, press the [0] key. The LCD will show “ENTER PIN” with “E = ENTER C = CANCEL” underneath. Enter the four digit PIN number, [2][1][0][6] followed by [Enter] (the [E] key).

2

When the correct PIN is entered, the LCD will show “CONFIGURATION MENU”, as a 2 line display which will then continuously scroll down and repeat the 3 pages of information as follows. “1. LOG EN/DISABLE” / “2. CALIBRATE”, then “3. TEST MODE” / “4. RESET” and then “C. CANCEL”. 2.1

If you want to ENABLE or DISABLE the Log, press the [1] key. Note that if a Walker Transducer is fitted then the Log would have to be enabled; if no Walker Transducer

was

fitted

then

the

Log

would

have

to

be

disabled.

Normal factory default condition is for Log “Enabled” (also 200ppnm “Enabled”). The LCD will show “LOG E=ENABLE” with “D=DISABLE

C=CAN” below.

To enable the log, press the [E] key. To disable the log, press the [D] key.


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7080 Operation & Installation Handbook 2.2

Having pressed E or D, the LCD will show “PPNM E=ENABLE” with “D=DISABLE C=CAN” below. To enable the 200PPNM outputs, press the [E] key. (“PPNM” above, with “ENABLED” below will show in the LCD) To disable the 200PPNM outputs, press the [D] key. (“PPNM” above, with “DISABLED” below will show in the LCD) Pressing either of the above will automatically set new LOG and PPNM Enabled / Disabled settings in Flash Memory after which the LCD will revert to the “Configuration Menu”.

2.3

At the appropriate time during the operations described in 2.1 and 2.2, pressing the [C] (CANCEL) key, will cause the display to revert to show the “Configuration Menu”. Any LOG ENABLED / DISABLED status and PPNM OUTPUT status, to the original factory settings or as previously input, will remain unchanged.

3

With the “CONFIGURATION MENU” active, with the LCD 2 line display continuously scrolling and repeating the information on three consecutive screens as follows “1. LOG EN/DISABLE” / “2. CALIBRATE”, then “3. TEST MODE” / “4. RESET”, then “C. CANCEL”. To CALIBRATE the 7070, press the [2] key. IMPORTANT: Any “calibration” procedure must not be activated until the 7080 Log system has been correctly “zeroed”. Refer to section 2.9.2. for this information. REFER TO SECTION 2.9.3 FOR FULL DETAILS OF THE THREE CALIBRATION PROCEDURES AVAILABLE.

4

With the “CONFIGURATION MENU” active, with the LCD 2 line display scrolling and repeating the information as follows; “1. LOG EN/DISABLE” / “2. CALIBRATE”, then “3. TEST MODE” / “4. RESET”, and then “C. CANCEL”. To access the “TEST MODE”, press the [3] key. 4.1

The LCD display will show “ENTER SPEED(x10)” with “E = ENTER C = CANCEL” below.


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7080 Operation & Installation Handbook To SET a fixed speed value from the keypad, the required speed should be entered in the form [1][0] to represent 1.0 knots or [1][0][0] to represent 10 knots. Note that these are examples only and the actual key presses made are to customer requirements. This is useful for setting up other equipment that is being connected to the 7080, such as other indicators, and for checking the 200 pulses per nautical mile (PPNM) outputs; if enabled. Note that keyed values less than 1 knot and greater than 80 knots will be ignored. After keying in the required set speed correctly, for instance 100 for 10.0 knots, the LCD will show “ENTER SPEED (100) / E = ENTER C = CANCEL”. Press [E] to accept the previously keyed set speed. The LCD will show ”TEST MODE C = CANC / SPEED 10.0 Knots”. The indicated (set) speed will be output as the relevant field within the IEC61162-1 “VHW” (NMEA 0183) message, with the associated “VLW” message (note: total distance transmitted in whole number nautical miles on legacy channel 2 only) also being output. If the 200PPNM outputs have been previously enabled, they too will pulse at the “test speed” frequency. 4.2

When checks are completed, press key [C] to cancel and return to the “Configuration Menu”.

5

With the “CONFIGURATION MENU” active, with the LCD 2 line display scrolling and repeating the information; “1. LOG EN/DISABLE” / “2. CALIBRATE”, then “3. TEST MODE” / “4. RESET”, and then “C. CANCEL”, if it is required to RESET the memory to the original factory settings, press key [4]. 5.1 The LCD will show “CLEAR MEMORY?” with “C = CONT E = END” below. To CONTINUE in the “CLEAR MEMORY” mode, press [C]. “ARE YOU SURE?” / “E = YES C = NO”, will be prompted on the LCD. Press [E]. “MEMORY RESET TO FACTORY SETTINGS” will appear for a few seconds on the LCD before the display reverts to the “Configuration Menu”. Note that any calibration points put in during calibration would be totally erased at this time, that the “Trip” and “Total” distances would both be reset to zero and that any System Up Time would also be reset to Zero. FACTORY SETTINGS: Log Enabled / Log Un-calibrated / PPNM Enabled.


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7080 Operation & Installation Handbook 5.2 With LCD showing “CLEAR MEMORY”? / C = CONT E = END”, to END, press button [E]. The LCD display will immediately change to show the “Configuration Menu”. 5.3 With LCD showing “ARE YOU SURE?” / “E = YES C = NO”, if not sure, press [C]. The LCD display will immediately revert to show the “Configuration Menu”. 6

With the “CONFIGURATION MENU” active, with the LCD 2 line display scrolling and repeating the information; “1. LOG EN/DISABLE” / “2. CALIBRATE”, then “3. TEST MODE” / “4. RESET”, and then “C. CANCEL”, if the operator does not want to proceed with an intended configuration function then, to immediately drop out of the configuration menu, press key [C]. The LCD display will immediately change to show the normal “run mode” screen.

The inputted information is retained in non-volatile RAM. Note that, after successful calibration, the LCD will show “P1100 LOG / CALIBRATED”. The appropriate vessel “speed” and “trip distance” values will be shown on the Log Data Display/s fitted on the system concerned.

WARNING: After satisfactory calibration, if accessing the LCD configuration menu screen, pressing key [4] RESET to bring up the “CLEAR MEMORY? / C = CONT E-END” prompt and pressing key [C] and then key [E] after the “ARE YOU SURE?” prompt is displayed, will permanently erase all log calibration data from the look-up table. “Trip” and “Total” distances and “System Up Time” would also all be reset to zero. ONLY USE THIS FACILITY IF IT IS INTENDED TO PERFORM RE-CALIBRATION OF THE 7080 SYSTEM.


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7080 Operation & Installation Handbook 2.9.2

Zero Control (See also section 2.9.3 Calibrating the 7080 Log Function (Calibration

methods) The Zero potentiometer, VR2, is located on the transducer PCB, within the screened can, in the Electronic Unit, (refer to drawing F-1877 Transducer PCB assembly). This control is used to set the indicated speed to zero when the water is stopped relative to the vessel. Access is gained through the hole in the lid and, using a suitable screwdriver, the spindle of the potentiometer should be turned clockwise until a speed reading is given on the LCD and/or dicator. It should then be turned anti-clockwise VERY slowly, until the speed has dropped to zero or just above. IT IS IMPORTANT THAT THE ZERO CONTROL IS NOT TURNED TOO FAR ANTI-CLOCKWISE, as this will lead to errors, particularly at low speeds.

The procedure to “SET ZERO” is performed as part of the overall “CALIBRATION” procedure and is accessed from the “CONFIGURATION MENU”. All calibration runs are performed AFTER “zero” has been adjusted to read correctly. Refer to section 2.9.3.


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7080 Operation & Installation Handbook 2.9.3 Calibrating the 7080 Log Function (Calibration Methods). SUMMARY. NOTE: Once a calibration has taken place the information can only be removed by using the RESET function within the configuration menu of the 7080. This will erase ALL calibration data. The “KNOWN SPEED” method of calibration, works on the principle of performing a single run in one direction only and requires that the speed of the ship be calculated. The calculated “KNOWN SPEED” is then entered into the look-up table as described later. At the point of entering the “KNOWN SPEED” into the look-up table, the vessel must continue steaming ahead at the same engine revs as when the vessel’s speed was calculated. This ensures that the sensed transducer voltage, at the instant of entering the calculated speed value, is correct. The calculated “KNOWN SPEED” is entered via the keypad, using the “x10” rule, such that, for example, pressing [1][0][0] [Enter], would input 10.0 knots. This “KNOWN SPEED” method of calibration can also be used in conjunction with an accurate and reliable on board GPS system. Rather than calculating the vessel speed as previously described, the SOG (speed over ground) given by the GPS can be used. Again, when inputting the speed value, the vessel must continue steaming ahead, at the same engine RPM, as when the GPS “SOG” reading was taken. Using GPS for this method of “KNOWN SPEED” calibration is only recommended for use in those areas where small tidal flow conditions are known to exist. It is recommended that after setting zero the upper limit of the system is calibrated, i.e. maximum speed ahead. Further calibration can be done, at other forward speeds, within this upper limit, so that a range of calibration points is available. Note that whilst a maximum of fifty calibration points can be input into the P1100 7080 look-up table, normally only three or four would be considered necessary. Do not calibrate log at speeds that are too close to each other. This calibration procedure is outlined in more detail later.

The “KNOWN DISTANCE” method of calibration works on the principle of performing the calibration by sailing the vessel over two runs, the second the reciprocal of the first, both over an identical “measured” nautical mile distance (minimum 0.2NM, maximum 5.0NM) and with the same engine revs. Sensed transducer voltages are taken once per second during both “runs”. At the end of the second run, calculation of the “average” speed through the water, over both RUN 1 and RUN 2, Document No. 7080 Iss 3 Rev 2

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7080 Operation & Installation Handbook is performed automatically, whilst an average of all the sensed transducer readings is also calculated. The calculated average speed and the averaged sensed transducer reading, are automatically stored in the look-up table. It is recommended that after setting zero the upper limit of the system is calibrated, i.e. maximum speed ahead. Further calibration can be done, by repeating the method, at other forward speeds, within this upper limit, so that a range of calibration points is available. Note again that whilst a maximum of fifty calibration points can be input into the P1100 7080 look-up table, normally only three or four would be considered necessary. The absolute minimum of calibration points that may be used is two. This method of calibration is considered to be more accurate than the “known speed” method as tidal stream effects have been nullified, many more sensed transducer readings have been taken and “averaging” is used in the automatic calculating process for the derivation of “speed through the water”. Do not calibrate log at speeds that are too close to each other. This calibration procedure is outlined in more detail later.

The “GPS MILE (D/T)” method can be used, to provide an automatic calibration procedure, only if a IEC 61162-1 (NMEA 0183) “GGA” sentence is being input to the P1100 from an approved GPS shipboard system. The vessel would again be sailed over two runs, the second the reciprocal of the first, with both runs performed over a 1 nautical mile distance over the ground, as calculated and timed, by the P1100 from the received “GGA” messages. Both runs are performed at the same engine revs. Sensed transducer readings are taken once per second and averaged at the end of Run 1, and at the end of Run 2. The average of both these transducer readings is calculated and this is “tied” to the calculated average speed over the ground from the sensed distance travelled with respect to time over both runs. If the calibration details from the two runs concerned, shown on the 7080 LCD, appear satisfactory, they can be accepted by the operator, and the calibration point stored in the lookup table. Note again that whilst a maximum of fifty calibration points can be input into the P1100 7080 look-up table, normally only three or four would be considered necessary.

The following GPS NMEA sentences can be used for calibration of the LOG.


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7080 Operation & Installation Handbook GGA

UTC

Latitude

Global positioning system (GPS) fix Data

Time of fix. This is used for the calculation of time of Run during calibration

Used for the calculation of distance and Bearing

GGA (continued)

HDOP

Latitude N/S Used for the calculation of distance and Bearing

Longitude Used for the calculation of distance and Bearing

Longitude E/W Used for the calculation of distance and Bearing

GPS quality ind If number is from 1 to 5 then data is accepted

Number of Satellites >= 4 Satellites then latitude, longitude fix regarded as valid

<= 3 then latitude, longitude fix regarded as valid

VTG

Course Over Ground (True)

Course over ground and ground speed

Used for true wind calculation and GPS(Auto) Log calibration

Course Over ground (Magnetic Used for calculating magnetic deviation

Speed Over Ground Knots

Speed Over Ground km/h



These sentences are also checked for validity and ed through to TX channels 1, 1A, 1B, 3, 4 and 5. NOTE: ANY OF THE ABOVE CALIBRATION METHODS CAN ONLY BE USED AFTER THE 7080 SPEED LOG HAS BEEN CORRECTLY “ZEROED”. This should only be performed by an authorised person and is achieved by adjusting the potentiometer (VR2) in the main unit, within the screened can on the transducer printed circuit board. Refer to earlier section 2.9.2.

IT IS RECOMMENDED THAT, REGARDLESS OF WHICH CALIBRATION METHOD IS USED, THE WIND SPEED, AT THE TIME OF CALIBRATION, IS LESS THAN FORCE 3 (BEAUFORT SCALE) AND THAT TIDAL STREAM VELOCITY CHANGE; BETWEEN RECIPROCAL RUNS, WHEN USING THE “KNOWN DISTANCE” OR “GPS MILE (D/T)” METHOD, OR DURING ANY “KNOWN SPEED” CALIBRATION PROCEDURE, IS LESS THAN 0.1 KNOTS. PROCEDURE.


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7080 Operation & Installation Handbook 2.9.3.1 Zero Setting & Calibration using “KNOWN SPEED” Method.

1) Perform Zero Speed Setting first. From LCD showing initial “run mode” screen “P1100 (LOG) / NOT CALIBRATED”, press [0] and after “ENTER PIN” prompt is displayed, press, in sequence, [2], [1], [0], [6], followed by [E], the ENTER key. This will bring up the “Configuration Menu”. Press [2], to enter the “Calibration Menu”. The 2 line LCD will scroll between the four different screens, at 1 second intervals, to show “CALIBRATION” / “MENU”, then “0. SET ZERO” / “1. KNOWN SPEED”, then “2. KNOWN DISTANCE” / “3. GPS MILE (D/T)”, then “C. CANCEL”, etc. Press [0]. The LCD will show “SPEED XX.X Knots” / “C TO CANCEL”. (XX.X value being an indeterminate speed at this time). If vessel is in still / slack water, set LCD SPEED reading to zero (00.0 Knots) using screwdriver to adjust VR2 as per section 2.9.2. When correctly adjusted to zero, press [C] to cancel operation and return to the “Calibration Menu”. At this time the LCD will show the scrolling calibration menu screens, with 00.0 Knots being displayed on the main P248 Log Data Display. Calibration can now be performed; see section 2. If not in still water, navigate back to the normal “run mode” screen (by pressing [C] when in calibration menu, then [C] from the configuration menu) and switch P1100 unit OFF. Disconnect transducer; by removing Red and Black transducer wires. Link together the vacated Red and Black terminal connections on the transducer PCB assembly, switch unit back on, and access the “SET ZERO” option, as above. Set LCD SPEED reading to zero (00.0 Knots) using screwdriver to carefully adjust Zero potentiometer, VR2, as per section 2.9.2. When correctly adjusted to zero, press [C] to cancel operation and return to the “Calibration Menu”. At this time the LCD will show the scrolling calibration menu screens, with 00.0 Knots being displayed on the main P248 Log Data Display. Press [C] to return to the “Configuration Menu”, then press [C] to return to the normal “run mode” screen with the LCD showing “P1100 (LOG)” / “UNCALIBRATED”.


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7080 Operation & Installation Handbook Switch off unit, remove link and re-connect transducer wires. Switch unit back on. After the P1100

software

version

has

been

momentarily

displayed,

“P1100

(LOG)”

/

“UNCALIBRATED” will be displayed on the LCD. Follow the previous instructions to return to the “Configuration Menu” and then to the “Calibration Menu”. A small speed value will, however, be displayed on the main P248 Log Data Display, indicative of the movement of water presently ing the face of the log transducer.

2) CALIBRATION can now be performed. From the “Calibration Menu”, with the LCD alternately showing “CALIBRATION” / “MENU”, then “0. SET ZERO” / “1. KNOWN SPEED”, then “2. KNOWN DISTANCE” / “3. GPS MILE (D/T)”, then “C. CANCEL”, etc. Press key [1] to enter the “KNOWN SPEED” calibration method. The LCD will show “ENTER SPEED (x10)” / “E = EN B = RPT C = CAN”. (Note E = ENTER, B = REPEAT, C = CANCEL). Key in the speed, in knots, using the “x10” rule. For example, pressing [1][0][0] would result in the LCD showing “ENTER SPEED (100)” / “E = EN B = RPT C = CAN”. Press [E], to input 10.0 knots. Note that the speed can either be from a calculation carried out with the vessel steaming ahead, on a straight course, at a set and constant number of engine revs, over a measured mile, or other measured distance, or can be from an accurate and reliable on board GPS unit, provided that suitable sea conditions exist at the time. It is recommended that this first calibration run be performed at the top speed of the vessel. Go to top speed and steer a straight course. When speed settles, then perform the necessary calculation as described or take the appropriate GPS “SOG” reading. It is important to that when pressing the [E] key to enter the keyed KNOWN SPEED reading, the vessel MUST still be continuing on at the same number of engine revs as at the time of either performing the KNOWN SPEED calculation or taking the GPS “SOG” reading. This ensures that the correct sensed transducer reading is “tied” to the appropriate keyed in “KNOWN SPEED” value in the 7080 look up table. Upon pressing [E], the LCD indication will show “FIXING CAL POINT” / “PLEASE WAIT” for a few seconds, before changing to show “01 CAL PTS SET” / “C = EXIT”.


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7080 Operation & Installation Handbook Press [C] to return to the “ENTER SPEED (x10)” / “E = EN B = RPT C = CAN” screen. Other additional calibration points may now be added to the 7080 look-up table, in order to provide the best possible calibration of the system.

3) Perform another run at a lower speed (different engine revs), and steer vessel at the new speed, again on a straight course and repeat instructions given above at 2), to store a second calibration point. “FIXING CAL POINT / PLEASE WAIT” will appear for a few seconds, before changing to show “02 CAL PTS SET / C = EXIT”. Press [C] to return to the “ENTER SPEED (x10)” / “E = EN B = RPT C = CAN” screen. Note that, after the initial “01 calibration point” has been stored in the 7080 look up table, if any subsequent calibration point entered; at the [E] key press, is considered to be incorrect, then the programme will not allow the suspect calibration point to be stored. “ENTRY ERROR CAL / POINT NOT STORED” will be displayed and the LCD screen will revert to the “ENTER SPEED (x10)” screen for the calibration, at the same or other speed, to be done again.

4) Perform other runs, at other speeds, as considered necessary to achieve the most satisfactory calibration of the system on the vessel concerned. In total, a maximum of fifty calibration points can be stored. Three or four calibration points are normal but if the vessel involved does change attitude in the water with respect to speed then more may be necessary to ensure that an acceptable standard of accuracy is achieved.

5) Note that if a mistake is made in keying in the correct “known speed” value, in knots, using the x10 rule, then, provided that the incorrect value has not been entered, press key [B]. The LCD will show the “ENTER SPEED (

) / “E = EN B = RPT C = CAN” screen ready to

repeat the keying in of the “x10” known speed value.

6) When it is decided that enough “known speed” calibration points have been entered, at the “ENTER SPEED (x10)” / “E = EN B = RPT C = CAN” screen, press [C] to return to the “Calibration Menu”. Press [C] to return to the “Configuration Menu”. Press [C] to return to


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7080 Operation & Installation Handbook the normal “run mode” screen whereupon the LCD will show “P1100 (LOG)” / “CALIBRATED”.

Two calibration points are recommended as the minimum for a “displacement” type craft (one that does not change its attitude in the water whether sailing at high or low speeds). A calibration point at the top speed of the vessel and a calibration point at a “slower” speed (minimum 5 knots) would be the minimum recommended for “storing” in the look-up table of the P1100 (7080). The speed range of the vessel concerned does affect the decision making process in the determination of the number of “calibration” points necessary to provide the best operational results. Faster craft would normally require more calibration points to be used. Vessels with “planing” type hulls that cause the vessel to change attitude in the water at different speeds are recommended to use a minimum of four calibration points to produce the best operational results. It is important that calibration log speeds chosen are not too close to each other. A minimum of 2 knots between adjacent “known speeds” must be observed.


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7080 Operation & Installation Handbook PROCEDURE. 2.9.3.2 Zero Setting & Calibration using “KNOWN DISTANCE” Method.



Page 55


software

version

has

been

momentarily

displayed,

“P1100

(LOG)”

/


2) CALIBRATION can now be performed. From the “Calibration Menu”, with the LCD alternately showing “CALIBRATION” / “MENU”, then “0. SET ZERO” / “1. KNOWN SPEED”, then “2. KNOWN DISTANCE” / “3. GPS MILE (D/T)”, then “C. CANCEL”, etc. Press key [2] to enter the “KNOWN DISTANCE” calibration method.

3) The LCD will show “ENTER DIST NMx10” / “E = EN B = RPT C = CAN”. (Note E = ENTER, B = REPEAT, C = CANCEL). The KNOWN DISTANCE over which the vessel is to be sailed during calibration run 1 now has to be keyed in and entered. This “known distance” must be entered in nautical miles and must be between 0.2NM minimum, and 5.0NM maximum. For example, pressing, in sequence, keys [1], [0], [E] would enter 1.0NM, pressing keys [2], [E] would enter 0.2NM. All keying thus observing the “x 10” rule. KEY IN THE “KNOWN DISTANCE” AND PRESS [E] TO ENTER. (Note that if the keyed measured distance is outside of the stated limits, the LCD will show an error message “DISTANCE TOO HIGH (or TOO LOW)” or “TOO MANY DIGITS” for a few seconds before reverting back to the “ENTER DIST NMx10” / “E = EN B = RPT C = CAN” screen.) If an error is made in keying in the “KNOWN DISTANCE” value, then provided that the value has not been entered (ie, [E] key not pressed), then press the [B] key to “REPEAT”. The LCD will revert back to the “ENTER DIST NMx10” / “E = EN B = RPT C = CAN” screen ready for the correct “KNOWN DISTANCE” to be keyed in and entered. If it is required to exit from the KNOWN DISTANCE calibration function, press the [C] key. The LCD will show the “Calibration Menu” screen.


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7080 Operation & Installation Handbook 4) Provided that the entered input distance is within the accepted limits given in 3), the LCD will display “E TO START RUN 1” / “C TO CANCEL”. Bring the vessel up to top speed and, steering a straight course, wait for speed to settle before ing the start marker and commencing RUN 1 over the “known” measured distance.

5) Press key [E] at the very start of the measured distance; ie, as the vessel es the “start” shore marker. The system will immediately begin taking readings of the sensed transducer voltage once every second. The LCD will show “E = STOP RUN 1 XXXX” / “A = ABORT C = CANCEL”. (Where XXXX will be the time of RUN 1 in seconds)

6) Press key [E] at the very end of the RUN 1 measured distance; ie, as the vessel es the “end” shore marker. Provided that the elapsed time is within the system parameters, in respect of calculated speed through the water, the LCD will show “E TO START RUN 2” / “C TO CANCEL”.

7) WITHOUT SLOWING DOWN, steer the vessel in a 180° turn, to bring the vessel around and onto the reciprocal (or parallel) reverse “RUN 2” course, as near as possible through the same stretch of water sailed through originally at RUN 1.

8) Press key [E] at the very start of the reciprocal “RUN 2” (ie, as the vessel es the measured distance “start” shore marker). The system will again immediately begin taking readings of the sensed transducer voltage once every second. The LCD will show “E = STOP RUN 2 XXXX” / “A = ABORT” “C = CANCEL”. (Where XXXX will be the time of RUN 2 in seconds)

9) Press key [E] at the very end of the RUN 2 measured distance; ie, as the vessel es the “end” shore marker.

Provided that the elapsed time is within the system parameters, in respect of calculated speed through the water, the LCD will show “FIXING CAL POINT” / “PLEASE WAIT” for a few seconds before showing “01 CAL PTS SET” / “C = EXIT”.


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7080 Operation & Installation Handbook Press [C] to return to the “Calibration Menu”. Other additional calibration runs may now be performed to add further calibration points into the 7080 look-up table and so provide the best possible calibration of the system.

10) Perform another set of runs at a lower engine rev setting (lower speed). Again bring vessel to the new speed and, steering a straight course, parallel to the shore markers, wait for speed to settle before commencing RUN 1 over the same measured distance. From the “Calibration Menu”, repeat the keying instructions given above from 2) through to 9) to store a second calibration point at this new speed.

Note that, at any time during a calibration procedure, if it is deemed necessary to “ABORT” the calibration run being performed, press the [A] key. In the case of a “RUN 1” calibration being aborted, the LCD will revert back to the “E TO START RUN 1 / C TO CANCEL” screen, ready for the “RUN 1” to be started again. Repeat RUN 1 with the vessel sailing over the same measured distance. In the case of a “RUN 2” calibration being aborted, the LCD will revert back to the “E TO START RUN 2 / C TO CANCEL” screen, ready for the vessel to repeat the calibration RUN 2 concerned. If, at any time during the calibration procedure, it is decided to end calibration, press the [C] key. The LCD will revert to show the “Calibration Menu”. NOTE: any calibration points previously “stored” from completed calibration runs will remain in the “look-up” table. In total, a maximum of fifty calibration points can be stored. Two calibration points are recommended as the minimum for a “displacement” type craft (one that does not change its attitude in the water whether sailing at high or low speeds). A calibration point at the top speed of the vessel and a calibration point at a “slower” speed (minimum 5 knots) would be the minimum recommended for “storing” in the look-up table of the 7080. The speed range of the vessel concerned does affect the decision making process in the determination of the number of “calibration” points necessary to provide the best operational results. Faster craft would normally require more calibration points to be used. Vessels with “planing” type hulls that cause the vessel to change attitude in the water at different speeds are recommended to use a minimum of four calibration points to produce the best operational results.


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7080 Operation & Installation Handbook It is important that calibration log speeds chosen (determined from setting “engine revs”) are not too close to each other. A minimum of 2 knots difference in speed, between adjacent “known distance” calibration points, must be observed.


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7080 Operation & Installation Handbook PROCEDURE. 2.9.3.3 Zero Setting & Calibration using “GPS MILE (D/T)” Method.



Page 60


software

version

has

been

momentarily

displayed,

“P1100

(LOG)”

/


2) CALIBRATION can now be performed. From the “Calibration Menu”, with the LCD alternately showing “CALIBRATION” / “MENU”, then “0. SET ZERO” / “1. KNOWN SPEED”, then “2. KNOWN DISTANCE” / “3. GPS MILE (D/T)”, then “C. CANCEL”, etc. Press key [3] to enter the “GPS MILE (D/T)” calibration method.

3) The LCD will ONLY show “GPS MILE RUN 1” / “E = START C = CANCEL”, if the necessary fields, relating to “quality indicator”, “number of satellites” and “HDOP”, all contain values as specified in the “GGA” GPS table on page 46. The GPS MILE (D/T) method involves calibrating the Log over a 1 nautical mile distance travelled as calculated from a GPS “Start Point” and a GPS “End Point”. The Log is calibrated by doing two runs, the second (RUN 2) being the reciprocal of the first run (RUN 1), as near as possible through the same stretch of water sailed through originally. Both runs are performed at the same engine revs. Bring the vessel up to top speed and, steering a straight course, wait for speed to settle. Press key [E] to begin the GPS Mile (D/T) calibration method.

4) The system will immediately begin taking readings of the sensed transducer voltage once every second. The LCD will show “X.XXX NM YYY.Y S” / “A = ABORT C = CANCEL”. (X.XXX will be the calculated nautical mile distance travelled and YYY.Y will be the time of the GPS RUN 1 in seconds).


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7080 Operation & Installation Handbook 5) When the vessel is calculated to have travelled exactly 1 nautical mile, the average of all the sensed transducer readings taken during RUN 1 is tied to the average speed of the vessel over the ground calculated from the time taken to travel the 1 nautical mile distance. The LCD will show “SOG XX.XX N” / “E = RUN 2 C = CANCEL”. XX.XX will be the calculated average SOG (Speed over Ground) in Knots from RUN 1. Press [E] to accept and temporarily store the data.

6) The LCD will now show “GPS MILE RUN 2” / “E = START C = CANCEL”. WITHOUT SLOWING DOWN, steer the vessel in a 180° turn, to bring the vessel around and onto the reciprocal (or parallel) reverse “RUN 2” course, as near as possible through the same stretch of water sailed through originally at RUN 1. Press [E] to begin RUN 2 of the GPS MILE (D/T) calibration procedure.

7) The system will immediately begin taking readings of the sensed transducer voltage once every second. The LCD will show “X.XXX NM YYY.Y S” / “A = ABORT C = CANCEL”. (X.XXX will be the calculated nautical mile distance travelled and YYY.Y will be the time of the GPS RUN 2 in seconds).

8) When the vessel is calculated to have travelled exactly 1 nautical mile, the average of all the sensed transducer readings taken during RUN 2 is tied to the average speed of the vessel over the ground calculated from the time taken to travel the 1 nautical mile distance. The average of both these RUN 2 values and the previous RUN 1 values is calculated to produce the average SOG reading over both runs. The average of the transducer readings from both RUN 1 and RUN 2 is automatically “tied” to this average SOG value. The LCD will show “AV SPEED XX.XX N” / “E = SET 2 C = CANCEL”. XX.XX will be the calculated average SOG (Speed over Ground) in Knots from both RUN 1 and RUN 2. Press [E] to accept and store the data.

9) The LCD will show “FIXING CAL POINT” / “PLEASE WAIT” for a few seconds.


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7080 Operation & Installation Handbook Provided that the calibration point has been successfully set, the LCD will then show “01 CAL PTS SET” / “C = EXIT”. Press [C] to exit to the “Calibration Menu” If the calibration point was not accepted then the LCD would show “CAL POINT ERROR” for a few seconds before automatically reverting to show the “Calibration Menu” screen.

Other additional calibration runs may now be performed to add further calibration points into the 7080 look-up table and so provide the best possible calibration of the system.

10) Perform another set of runs at a lower engine rev setting (lower speed). Again bring vessel to the new speed and, steering a straight course, wait for speed to settle before commencing GPS MILE (D/T) RUN 1. From the “Calibration Menu”, repeat the keying instructions given above from 2) through to 9) to store a second calibration point at this new average speed from performing another set of runs.

If, at any time, it is required to exit from the GPS MILE (D/T) calibration function, press the [C] key. The LCD will revert to show the “Calibration Menu” screen.

If, at any time, the “GGA” message received, fails to comply with the minimum requirements specified for “GPS MILE (D/T)” calibration; given on page 46, the display will show “NO GPS DATA / C=CANCEL”. Press [C] to revert back to the “Calibration Menu” screen.

In total, a maximum of fifty calibration points can be stored. Two calibration points are recommended as the minimum for a “displacement” type craft; one that does not change its attitude in the water, whether sailing at high, or low, speeds. A calibration point at the top speed of the vessel and a calibration point at a “slower” speed (minimum 5 knots) would be the minimum recommended for “storing” in the look-up table of the 7080. The speed range of the vessel concerned does affect the decision making process in the determination of the number of “calibration” points necessary to provide the best operational results. Faster craft would normally require more calibration points to be used.


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7080 Operation & Installation Handbook Vessels with “planing” type hulls that cause the vessel to change attitude in the water at different speeds are recommended to use a minimum of four calibration points to produce the best operational results. It is important that calibration log speeds chosen (determined from setting “engine revs”) are not too close to each other. A minimum of 2 knots difference in speed, between adjacent “GPS MILE (D/T)” calibration points, must be observed.

2.10 Test facility The P1100 has a built in log simulator, which can be selected by the switch underneath the power switch. When in simulator mode, the log will respond to the dial next to the simulator switch, so that the P1100 (7080) can be set to a fixed speed reading to check IEC 61162-1 outputs and the 200 pulses per nautical mile outputs. The same facility can also be achieved by means of the keypad, when in “Test Mode”. In this mode it is possible to enter a value from the keypad. This will give a constant log reading, which can be very useful for diagnostic purposes.

After any simulation checks have been completed using the built-in log simulator, THE SWITCH MUST BE RETURNED TO IT’S NORMAL “RUN” POSITION, OTHERWISE THE LOG WILL NOT OPERATE WHEN UNDER WAY.


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7080 Operation & Installation Handbook 3

OPERATION

3.1 Electronics unit This is the main unit of the 7080 where all the information is collected and processed. 3.1.1 The operating environment The 7080 system is a combined speed log and wind system, for use in marine applications. There is a range of inputs and outputs, analogue and digital. The diagram below shows how the system interacts with the environment.

EM Log

Keypad

Wind Cup Unit

LCD Display

Walker 7070 Combined Speed Log & Wind Instrument

Wind Vane Unit

NMEA dicator NMEA Wind Indicator Other NMEA Listeners

NMEA Talker Power Supply

200 ppNM Devices

Inputs are in various forms. • The Walker Electromagnetic log produces a voltage proportional to the rate at which water flows through its magnetic field, the excitation of which is supplied by the P1100. • Wind speed and wind direction data from the cup unit and vane unit are provided as IEC 61162-1: 2010 (NMEA 0183) “MWV” serial (RS422) sentences. Data from these sentences is automatically combined before processing. Any “V” (invalid) flag in such received MWV messages, from whatever source, will not affect the included data being used for calculating “true wind”. When the combined version of these sentences is re-transmitted the “A” (valid) flag will be included. • The Combined Ultrasonic Masthead Unit, and Walker combined wind sensor, also produce a IEC 61162-1 (NMEA 0183) “MWV” serial (RS422) sentence, with data in both the wind speed and wind


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7080 Operation & Installation Handbook direction fields, which, if input, is directly processed. One of these units can be used as an alternative to the separate cup unit and vane unit mentioned above. • Various other serial data sentences, as per IEC 61162-1 (NMEA 0183), can be input via any of the five opto-isolated RS422 input ports on the 5 channel I/O board in the P1100 Electronics / Control Unit. • IEC 61162-1 (NMEA 0183) sentences that will be accepted by the 7080, P1100, Electronics Unit are:- “HDT”, “VHW”, “VBW”, “MWV”, “GGA”, “VTG” and “XDR”. “XDR” messages may be input from a Walker P1002 Weather Sensor, or P1003 Combined Wind and Weather Sensor. “XDR” from a Walker P1263 Water Temperature Sensor can also be input. • control is achieved by means of a 16 key, 4 x 4 matrix keypad, labelled 0-9 and A-F. • The unit is designed to operate from a 24 volt DC supply provided either directly or via a separate PSU. • A “push button” reset for the trip distance has been incorporated into the 7070 (7080) P1248 log data display. Where more than one log data display is included in the system, the “master” log display would normally share the same 24Vdc supply as the P1100 (7080) electronics unit and would have the “reset” line connected. The system is designed to give the following outputs •

IEC 61162-1 (NMEA 0183) serial data for log speed (VHW, VBW and VLW) and wind indication (MWV, both relative and theoretical, and MWD, “True to North”). Available on 6 output channels (Ch1, 1A, 1B, 3, 4 and 5).

•

Dedicated NMEA 0183 “Legacy” channel (Ch2) providing “VHW”, VLW”, “MWV” and “MWD”. “XDR”, if input from a P1002 Weather sensor, is ed through.

•

Visual display to the on a 16 character by 2 lines LCD display.

•

200 pulses per nautical mile, on potential free relay s. 2 pairs of s are available.


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7080 Operation & Installation Handbook 3.1.2 Normal Operation The controls the operation of the P1100 by use of a keypad (see drawing 3406-A3-11), which interfaces with the processor. There are 16 options available from this keypad, one per key. Twelve options are active on the P1100 unit. These options are shown below. Key

Function

[0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [A] [B] [C] [D] [E] [F]

Setup Options (inc calibration). Available after entering the 2106 “PIN” number. Display Ship Speed on LCD * Display ADC average value on LCD* Display number of Calibration Points on LCD* Display True Wind information on LCD* Display Theoretical Wind information on LCD* Display Relative Wind information on LCD* Display Heading information on LCD* – if input Display Trip Distance on LCD* Display Total Distance on LCD* NO FUNCTION Display System Up Time on LCD*. Shown in hours (max 6 digits) / minutes NO FUNCTION Display GPS Data on LCD* – if input NO FUNCTION NO FUNCTION

The majority of the keys only perform a simple switching task, changing what can be displayed on the LCD. Note too, that the eleven individual readings *, available for display on the LCD, are only present for some 3 seconds after pressing the appropriate button on the keypad. After this time the LCD will revert to show the normal run screen. Note that if the values being read, in response to any of these keys being pressed, exceeds the number of digits displayable on the LCD, that a row of asterisks would result. The number of asterisks displayed would equal the normal number of characters allowed within the field in question. For instance, if the relative serial wind speed data being input was 110.0 knots, then pressing key [6] would display **** on the LCD as only values up to 99.9 knots are displayable for wind speed. In such instances, the associated transmitted “MWV” serial wind sentence, from the P1100, would still include full wind speed information in the data field concerned.

There are, however, very important functions, which must be called up using the keypad. All these are available from using key [0] – Setup Options, and include Calibration procedures. These Document No. 7080 Iss 3 Rev 2

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7080 Operation & Installation Handbook functions, all available from the resultant “Configuration Menu”, shown on the LCD, allow the operator to set up the configuration of the P1100 and generate the calibration table used to calculate the speed of the ship. The “Configuration Menu” is protected by the PIN number, so that only those who are authorised to do so can alter the P1100 setup. Refer to section 2.9 and flow charts for full information. Once the system has been configured and calibrated, it should not be necessary to use this routine again, except for any board (or transducer) changes, which require that the setup or calibration information be updated.

In any situation where the system requires the operator to enter a number, then the [E] key will be used as an [Enter] key. All keys pressed by the operator, as described by this manual, are indicated by italics.


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7080 Operation & Installation Handbook 3.2 The 7070/7080 indicators (P1248 / P1249 / P1255) These units share a common case and have some common features, such as the illumination of the OLEDs. They operate on 24 volts d.c. and receive information in IEC 61162-1 (NMEA 0183) format, via an RS 422 serial data link.

3.2.1 7070/7080 Log Data Display / Speed and Distance Indicator: P1248 Note: In the event of more than one P1248 Log Data Display being fitted, the main navigational Display will be wired in to provide the trip distance “reset” facility.

3.2.1.1 Operational Features. The P1248 Log Data Display is housed in a DIN 43700 pattern (Din144 x 144) case and reads IEC 61162-1, NMEA 0183, “VLW”, “VHW” and “VBW” serial data to provide readings of Log Speed through the Water (STW) in Knots, Trip Distance travelled through the water, and Total Distance travelled through the water, both in Nautical Miles. A relay can be used for re-setting Trip Distance. Power supply requirement is 24Vdc.

The unit has two 256*64 pixel OLED Graphic displays, 4 Touch switches; for trip reset, trip and total distance display modes and illumination control, 4 NMEA 0183 inputs and 1 NMEA 0183 output.

Two “Modes” of operation are provided. In “Mode 1”, the top display will show Speed through the water, in knots, with the lower display showing Total distance travelled through the water, in nautical miles. In “Mode 2”, the top display will show Speed through the water, in knots, with the lower display showing Trip distance travelled through the water, again in nautical miles. Displayed readings meet the requirements of IEC 62288: 2008, for the presentation of navigational-related information on shipborne navigational displays. Operational controls likewise reflect the appropriate requirements specified within this standard.

The P1248 Log Data Display will accept and re-transmit valid IEC 61162-1: (NMEA 0183) messages with the following formatters; MWV, MWD, VLW, VHW, VBW, HDT, HDM, HDG,


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7080 Operation & Installation Handbook VTG, JLG (proprietary), GGA, XDR and MTW. LEDs, visible at the rear face of the unit, provide additional information for customer confidence and diagnostic purposes.

The display has “illumination” up [∆] and down [∇] touch switches, which allow dimming to extinction. The indicator is splash-proof but is not waterproof.

The P1248 is designed as a peripheral unit to the 7080 P1100 Master Electronics Unit. Normal On/Off switching of system power is provided by the P1100 MEU. If switched off, the previous mode and level of illumination are retained in “flash” memory.

3.2.2 The 7070/7080 Wind Data Display (Speed and Direction Indicator): P1249

3.2.2.1 Operational Features. The P1249 Wind Data Display is housed in a DIN 43700 pattern (Din144 x 144) case and reads IEC 61162-1, NMEA 0183, “MWV” and “MWD” serial data to provide readings of Relative, True, and True to Ship, wind speed and direction. Power supply requirement is 24Vdc.

The unit has two 256*64 pixel OLED Graphic displays, 4 Touch switches; for display mode, scaling and illumination control, 4 NMEA 0183 inputs and 1 NMEA 0183 output. A ring of LEDs in 5° steps also indicates wind direction.

Three “MODES” of operation are provided. In “Mode 1”, activated by pressing on the “REL” key, the top display will show Relative wind speed, with the lower display showing Relative wind direction. If the “REL” key is successively pressed 3 times or more within 3 seconds, then the displayed Wind Speed units will change with each subsequent key press in the sequence KTS, M/S, KPH and MPH. In “Mode 2”, activated by pressing on the “TRUE” key, the top display will show True wind speed, with the lower display showing True wind direction. A further press of the “TRUE” key will toggle the display to “Mode 3”, which will display “True to Ship” wind data. Further presses of the “TRUE” key will toggle the display between Mode 2 and Mode 3.


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7080 Operation & Installation Handbook Relative, True or True to Ship, wind direction is also indicated on the ring of LEDs as appropriate to the activated display mode.

Displayed readings meet the requirements of IEC 62288: 2008, for the presentation of navigationalrelated information on shipborne navigational displays. Operational controls likewise reflect the appropriate requirements specified within this standard.

The P1249 Wind Data Display will accept and re-transmit valid IEC 61162-1: (NMEA 0183) messages with the following formatters; MWV, MWD, VLW, VHW, VBW, HDT, HDM, HDG, VTG, JLG (proprietary), GGA, XDR and MTW. LEDs, visible at the rear face of the unit, provide additional information for customer confidence and diagnostic purposes.

The display has “illumination” up [∆] and down [∇] touch switches, which allow dimming to extinction. The indicator is splash-proof but is not waterproof. If switched off, the previous mode and level of illumination are retained in “flash” memory.

3.2.3 The 7070/7080 Weather Data Display: P1255

3.2.3.1 Operational Features. The P1255 Weather Data Display is housed in a DIN 43700 pattern (Din144 x 144) case and reads IEC 61162-1, NMEA 0183, “XDR” serial data to provide readings of barometric pressure; together with barometric trend, humidity, air temperature and seawater temperature.

Power supply

requirement is 24Vdc.

The unit has two 256*64 pixel OLED Graphic displays, 4 Touch switches; for display mode and illumination control, 4 NMEA 0183 inputs and 1 NMEA 0183 output.

Two “MODES” of operation are provided. In “Mode 1”, activated by pressing on the “Pr mBar” key, the top display will show barometric pressure and “trend”, with the lower display showing air


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7080 Operation & Installation Handbook temperature. In “Mode 2”, activated by pressing on the “Rh %” key, the top display will show humidity with the lower display showing water temperature. All temperature readings are shown in degrees Celsius, barometric pressure is given in millibars and humidity as %.

The unit can thus be switched between “Modes” to display Barometric Pressure / “Trend” and Air Temperature, or Humidity and Water Temperature.

Displayed readings meet the requirements of IEC 62288: 2008, for the presentation of navigationalrelated information on shipborne navigational displays. Operational controls likewise reflect the appropriate requirements specified within this standard.

The P1255 Weather Data Display will accept and re-transmit valid IEC 61162-1 (NMEA 0183) messages with the following formatters; MWV, MWD, VLW, VHW, VBW, HDT, HDM, HDG, VTG, JLG (proprietary), GGA, XDR and MTW. LEDs, visible at the rear face of the unit, provide additional information for customer confidence and diagnostic purposes..

The display has “illumination” up [∆] and down [∇] touch switches, which allow dimming to extinction. The indicator is splash-proof but is not waterproof. If switched off, the previous mode and level of illumination are retained in “flash” memory.


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7080 Operation & Installation Handbook 3.3

IEC 61162-1 (NMEA 0183) Data.

Input and Output IEC 61162-1 (NMEA 0183) sentences relating to a 7080 Log and Wind systems data are summarised as follows. INPUT MESSAGES: The following messages may be input to the 5 Channel I/O board within the P1100 Master Electronics / Control Unit. Note that whilst “talker ID” is unimportant to the interrogation of sentences, checksum calculations are always taken into for validity purposes. 1

$--VHW,x.x,T,x.x,M,x.x,N,x.x,K*hh Note that the P1100; with log enabled, would use information in the heading field only for calculation of “true” wind values. The P1100 would disregard any information in the water speed fields and would construct its own VHW sentence using transducer derived water speed values for re-transmission. With log disabled, heading and water speed data would be used by the P1100 to calculate “true” wind values.

2

$--VBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh This sentence would only be separately input if the P1100 had Log “disabled” and would be used as the source for water speed. Note that the P1100, with log disabled, would only use the first, longitudinal, “speed through the water” knots field in the above message. Anything in the other fields is discarded. Any of these unused fields may be “nulls”. If P1100 had log enabled, then own “VBW” message would be derived using speed values calculated using inputs from the fitted transducer.

3

$--HDT,x.x,T*hh Note that this message is used for P1100 “True” wind calculations only.

4

$--MWV,x.x,R,x.x,N,A*hh Note that the above message, if containing both wind speed and wind direction fields, can be input via a single input port on the 5 Channel I/O Board. If two separate messages were to be input, one containing data in the wind speed field only and the other containing data in the wind direction field only, then 2 input ports on the 5 Channel I/O Board would have to be utilised.


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7080 Operation & Installation Handbook This sentence would normally only be separately input on 7080 installations where a Walker wind sensor was not included. The sentence is necessary in order to generate and output a “MWV” Theoretical (true to ship), or a “MWD” sentence, from the P1100 Master Electronics / Control Unit.

5

$--GGA,hhmmss.ss,llll.ll,a,yyyyy.yy,a,x,xx,x.x,x.x,M,x.x,M,x.x,xxxx*hh This sentence is used for automatic GPS calibration purposes only.

6

$--VTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh This sentence is used for course over ground (COG) and speed over ground (SOG) data.

The P1100 calculates True Wind Angle and Speed and also Theoretical Wind Angle and Speed from the best available data. NMEA 0183 data on any of the five input channels is extracted from VHW VBW HDT VTG and MWV (Relative) sentences and, together with Speed Through Water from the EM LOG, is used to calculate True and Theoretical Wind Angle and Speed. This data is then sent to output channels 1, 1A, 1B, 3, 4 and 5 as NMEA MWV (Theoretical) and NMEA MWD sentences.

The accuracy of the calculated results is dependant on what data is available. The following table indicates what data is available in the IEC 61162-1 (NMEA 0183) sentences used by the P1100. NMEA

VBW VHW HDT VTG MWV (EM LOG)

Relative Wind Speed and Angle (WIND) Speed Angle

Heading (HEAD)

X X X

Speed Through water (STW) X X

Course Over Ground (COG)

Speed Over Ground (SOG) X

X

X

X X

Data available will be timed out after 3 seconds.


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7080 Operation & Installation Handbook OUTPUT MESSAGES: 1

$VMVHW,,T,,M,xxx.x,N,,K*hh

2

$VMVBW,x.x,x.x,A,x.x,x.x,A,x.x,A,x.x,A*hh

3

$VMVLW,xxxxx.x,N,xxxxx.x,N*hh

4

$WIMWV,xxx.x,R,xxx.x,N,A*hh

5

$WIMWV,xxx.x,T,xxx.x,N,A*hh

6

$WIMWD,xxx.x,T,,,xxx.x,N,,M*hh

7

$--GGA (if input / as input)

8

$--VTG (if input / as input)

9

$--XDR (if input / as input)

Resultant output messages will be dependant upon the supplied 7080 system component composition, the IEC 61162-1 messages input and system configuration. The following information gives a general overview of sentence transmission requirements. Sentences 1, 2 and 3, are always transmitted on 7080 systems that include a Walker EM Log Transducer provided that system “Configuration” has been carried out correctly with the “log” ENABLED. Sentence 4 is transmitted on 7080 systems that include either type of Walker combined wind sensor, separate Walker wind sensors, a P1003 Wind and Weather sensor, or separately input “MWV” (relative) sentence/s. Sentences 5 and 6 are transmitted on 7080 systems that include a Walker EM Log Transducer together with either type of Walker combined wind sensor, or separate Walker wind sensors. Additionally a “HDT” and / or “VTG” sentence/s is/are required. Note that separately input “MWV” (relative) sentence/s can be used, instead of being provided from fitted Walker wind sensor/s. Sentences 7, 8 and 9 are only transmitted if the 7080 system has these same messages being input. Note that whatever combination of messages are actually transmitted, by the P1100 Master Electronics Unit, all such messages are available at each set of NMEA output terminals apart from


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7080 Operation & Installation Handbook Channel 2 (on the I/O board) which is the dedicated “legacy” channel for use with P248 Log, P249 Wind and P255 Weather indicators only. In respect of the NMEA outputs of the 5 Channel I/O PCB, in the P1100 Master Electronics Unit, NMEA drivers are MAX3442E and output drive capability is rated at 1 NMEA load of 500 ohms each port.


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7080 Operation & Installation Handbook 4

MAINTENANCE

SUITABLE ESD PRECAUTIONS MUST BE TAKEN WHENEVER INSTALLATION / MAINTENANCE (FAULT FINDING) IS CARRIED OUT. SUCH PRECAUTIONS MUST BE MAINTAINED DURING REMOVAL / REPLACEMENT OF ELECTRONIC SUBASSEMBLIES AND, IN THE EVENT OF HAVING TO RETURN ANY PIECE OF ELECTRONICS, ESD SAFE PACKAGING MUST BE USED.

4.1 Log System 4.1.1 Sea-Valved Transducers It is recommended that P99 sea-valved transducers for steel hulled craft and P201 sea-valved transducers for wood / fibreglass vessels are removed from their respective skin fitting assemblies once yearly to inspect the face of the transducer containing the pick-up beads (electrodes). After raising the transducer above the gate of the sea-valve, the sea-valve must then be closed before the transducer is removed. After removal, any marine growth found must be cleaned off from the face of the transducer without scouring the anti-fouled bottom surface or indeed damaging the pick up beads themselves. Whenever necessary re-paint the bottom face of the transducer using a nonconductive anti-fouling paint, taking care to ensure that the electrodes (pick-up beads) themselves are completely clean and free from any grease or anti-fouling paint etc.

Whilst the above periodic inspection is recommended, longer periods between transducer inspections are acceptable, provided that no degradation in accuracy of log readings is noticed during normal equipment operation. If any inaccuracy of readings is noticed and transducer checks outlined in section 4.1.3 prove that the transducer is satisfactory and the 7080 master electronic unit operates correctly in simulator mode, then the transducer should be removed for inspection and cleaning as outlined above. In the unlikely event that some inaccuracy in readings is still evident, then this unusual occurrence could be due to marine growth fouling the hull just forward of the transducer position and affecting the normal pattern of water flow present when the log was first calibrated. Re-


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7080 Operation & Installation Handbook calibration of the log system is recommended if such a situation was to develop. The hull would need to be inspected when the vessel is next dry-docked. Any anti-fouling of the shell plating (hull) must be carried out in accordance with recommendations specified in sections 2.3.1, 2.3.2 and 4.1.3.3.

4.1.2 Fixed Type Transducers For all versions of fixed type EM Log transducers, it is recommended that inspection of the face of the transducer containing the pick-up beads (electrodes) is carried out whenever the vessel is “slipped” or dry-docked. Any marine growth found must be cleaned off from the face of the transducer without scouring the anti-fouled bottom surface or indeed damaging the pick up beads themselves. It is recommended that at this time the outside of the shell plating in the vicinity of the transducer is also inspected for any marine growth which could affect the water flow pattern across the face of the transducer. Whenever necessary re-paint the bottom face of the transducer using a non-conductive anti-fouling paint, taking care to ensure that the electrodes (pick-up beads) themselves are completely clean and free from any grease or anti-fouling paint etc. Any anti-fouling of the shell plating must be carried out in accordance with recommendations specified in sections 2.2 and 4.1.3.3.

4.1.3 EM Log Transducer checks 4.1.3.1 Checking EM Log Transducer installation with vessel in drydock. For “Fixed Type” EM Log Transducers and for “Seavalved” Type EM Log Transducers wound down into working position. Visual Checks: 1) Once the vessel has been dry-docked, ensure that the face of the EM Log Transducer can be safely accessed and inspected from the outside of the shell plating. 2) Check that both the Transducer Electrode Beads are intact, are clean and are correctly positioned relative to the normal water flow. a) The beads should be projecting from the face of the transducer and should be relatively identical in size.


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7080 Operation & Installation Handbook 4.1.3.1 Checking EM Log Transducer installation with vessel in drydock: continued

b) The beads should not have been painted and should not be covered in grease or marine growth. c) The beads should be positioned athwartships so that the normal water flow, when the vessel sails ahead, is at right angles to an imaginary line through both beads. 3) Check that the face of the Hull Pad, welded to the shell plating, is clear of any marine growth, which would interfere with the normal water flow across the face of the fitted (or lowered) transducer. 4) Check that the surrounding area within at least a 1 metre radius from the centre of the transducer is likewise reasonably free of marine growth. Electrical Checks: Continuity through Transducer Bead Lines. 5) Switch off power to the EM Log system Main Electronics Unit (or Main Control Unit) and disconnect the transducer cable from the transducer terminals within this main unit. 6) Twist the red and the black cores together; these are the connections to the electrode beads themselves. Red is the “port” side electrode bead, black is the “stbd” side electrode bead. 7) Using a DVM (or analogue meter), check for continuity by measuring across the beads on the outer face of the transducer. If found to be open circuit then, providing that no junction box is fitted to extend the transducer cabling, the transducer is defective and must be replaced. If one or more junction boxes have been utilised to extend the normal 50 metres of transducer cable permanently fitted to the transducer, then this/these must be inspected as the open circuit could be associated with the red or black bead connections within the junction box(es). 8) Untwist and separate the red and the black cores ready for further tests or for future reconnection to the Main Electronics / Control Unit.


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7080 Operation & Installation Handbook 4.1.3.1 Checking EM Log Transducer installation with vessel in drydock: continued Transducer Coil Resistance. 9) With the transducer cable still disconnected from the Main unit terminals, again use a DVM (or analogue meter), set to “ohms”, to check the coil resistance by measuring across the brown and yellow cores of the transducer cable. The coil resistance should be approximately 900 to 1000 ohms. Transducer Coil Insulation: 10) With the transducer cable still disconnected from the Main unit terminals, again use a DVM (or analogue meter). Measurements should be > 100M ohms between; a) Yellow to Screen. b) Brown to Screen. c) Yellow to Black. d) Brown to Red. Notes: Visual checks 3) and 4) are of general interest if, prior to dry-docking, the log system had been giving suspect readings. Any scraping / cleaning of the hull carried out whilst the vessel is in drydock, and subsequent antifouling, must, when carried out locally to a fixed type transducer, be performed in a manner that ensures that the face of the transducer, and especially the electrode beads themselves, are not damaged during these operations. A sea-valve type transducer can be raised to eliminate any possibility of damage.

See section 4.1.3.3 for information relating to anti-fouling of the face of the transducer and of the hull pad.

All the above Electrical Checks; 5) to 10) inclusive, are valid for any replacement transducer that is fitted with the vessel in drydock.


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7080 Operation & Installation Handbook 4.1.3.2 Checking Transducer with vessel afloat in seawater For “Fixed Type” EM Log Transducers and for “Seavalved” Type EM Log Transducers wound down into working position. Visual Checks: 1) Ensure that the fitted transducer is aligned correctly. a) The dot (or arrow head) on the top face of the transducer must point directly forward, towards the bow of the vessel. This determines that the transducer electrode beads on the outside face of the transducer are correctly positioned athwartships and thus ensures that the seawater flows correctly over the beads as the vessel moves ahead through the water. Electrical Checks: Continuity through Transducer Bead Lines. 2) Use a DVM (or analogue meter), set to “ohms”. Transducer cable disconnected from the Main Electronics / Control unit terminals. a) Connect one test lead to ship Earth; shell plating, steelwork etc, use other lead as follows:Red wire to Earth = Black wire to Earth. Figure obtained does depend on test meter used + seawater conductivity. As a general guide, 500 ohms to 200K ohms could be measured.

If there is any doubt concerning the results obtained from the above check then the following test can also be performed. b) WITH VESSEL IN SEAWATER AND STATIONARY (no water flow ing across the face of the transducer). Use DVM, and connect directly across the red and the black [electrode beads] wires. Set meter to “ohms” for say 4 to 5 seconds only. [The battery in the meter will thus charge up the seawater beneath the transducer.]


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7080 Operation & Installation Handbook 4.1.3.2 Checking Transducer with vessel afloat in seawater: continued Immediately switch meter to measure volts DC, and, if continuity O/K, then decaying voltage should be seen; very approximately 1 volt decaying. Transducer Coil Resistance. 3) With the transducer cable still disconnected from the Main Electronics / Control unit terminals, again use a DVM (or analogue meter), set to “ohms”, to check the coil resistance by measuring across the brown and yellow cores of the transducer cable. The coil resistance should be approximately 900 to 1000 ohms. Transducer Coil Insulation: 4)

With the transducer cable still disconnected from the Main unit terminals, again use a DVM (or analogue meter). Measurements should be > 100M ohms between; a) Yellow to Screen. b) Brown to Screen. c) Yellow to Black. d) Brown to Red.

Note: A “Seavalved” Type EM Log Transducer (P99 or P201) can be removed from the seavalved skin fitting whilst the vessel is afloat. THE TRANSDUCER MUST FIRST BE RAISED AND THE GATE VALVE THEN CLOSED BEFORE THE REMOVAL OF THE TRANSDUCER. Continuity testing can then be performed as outlined in Section 4.1.3.1, as per notes 5) to 8) inclusive, rather than as outlined in Section 4.1.3.2, as per note 2) above.


Page 82

7080 Operation & Installation Handbook 4.1.3.3 General Notes: IT IS ESSENTIAL THAT THE 7080 LOG SYSTEM IS CORRECTLY CALIBRATED. AFTER A REPLACEMENT TRANSDUCER IS FITTED, IT IS NECESSARY TO RE-PERFORM THE CALIBRATION PROCEDURE AS SPECIFIED IN THIS HANDBOOK. IT IS ADVISABLE TO CHECK THAT ALL INTERCONNECTIONS ARE CORRECT AND WELL MADE IN ACCORDANCE WITH THE APPROPRIATE SYSTEM BLOCK DIAGRAM AND 7080 HANDBOOK. IT IS FURTHER ADVISABLE TO CHECK THAT, IF A JUNCTION BOX HAS BEEN USED IN THE INSTALLATION OF THE TRANSDUCER CABLING, THAT IT IS DRY INTERNALLY AND THAT THE TRANSDUCER SCREEN HAS BEEN CONNECTED THROUGH. THE TRANSDUCER IS A NON-REPAIRABLE ITEM. IF THE TRANSDUCER HAS FAILED IT MUST BE REPLACED. THE EXTERNAL STEEL SURFACES OF THE HULL PAD SHOULD BE ANTI-FOULED USING A SUITABLE ANTI-FOULING PAINT. THE BOTTOM FACE OF THE TRANSDUCER SHOULD BE ANTI-FOULED USING A SUITABLE

NON-CONDUCTIVE,

ANTI-FOULING

PAINT.

THE

TRANSDUCER

ELECTRODE BEADS THEMSELVES MUST BE COMPLETELY CLEAN AND FREE FROM ANY GREASE OR ANTI-FOULING PAINT etc.


Page 83

7080 Operation & Installation Handbook 4.1.3.4 Checking Transducer Drive When carrying out any fault finding, personnel involved must take full ESD (electrostatic discharge) precautions. The wearing of a suitable “grounding strap” is recommended. If log readings are lost, then before any electrical tests; outlined in 4.1.3.1 and 4.1.3.2, are performed on the transducer itself, it is advised that, in the first instance, the availability of the correct coil drive voltage to the transducer be checked. This drive; of 115v, 27.5Hz, for the transducer coil winding, is generated on the transducer PCB, located in the Master Electronics Unit. Refer to the layout drawing of the Transducer PCB; F-1877. “Transducer” terminals concerned are as follows: Terminal 17 “Brown” / Terminal 18 “Yellow”. Perform the following procedure: 1) Switch off the Master Electronics unit. 2) Disconnect the brown and the yellow transducer wires from terminal 17 and terminal 18 respectively. 3) Switch Master Electronics unit back on. 4) Use a DVM, set to measure A.C. volts, and measure across the vacated terminals (17 and 18) on the transducer board. Nominal 115Vac should be measured. Note that the frequency of 27.5Hz is set automatically by a timer circuit involving a string of fixed resistors; R6 (12K), VR1 (8K2) and R11 (10K), capacitor; C7 (0.68uF) and integrated circuit; IC5 (NE555N) on the transducer PCB. To check this frequency an oscilloscope or frequency meter must be used. If the correct coil drive voltage is available and if the points outlined in the “General Notes” section 4.1.3.3 have been covered, then the transducer checks outlined in 4.1.3.1 or 4.1.3.2 (as appropriate) must be carried out.


Page 84

7080 Operation & Installation Handbook 4.1.3.5 Checking Diagnostic LEDs on 5 Channel I/O Board.

NMEA RX LEDS NMEA RX RX CH1 to RX CH5

DATA LED (GREEN)

VALID LED (GREEN)

INVALID LED (RED)

ON Flashing indicates Data on channel

ON Indicates valid NMEA sentences

ON Indicates invalid NMEA data

OFF Indicates no data on channel

OFF Indicates unrecognised NMEA sentences

OFF Indicates no invalid NMEA data

Valid and Invalid LED’s timeout after 2 seconds NMEA TX LEDS NMEA TX TX CH1 to TX CH7

NMEA TX LED (GREEN) ON Flashing OFF indicates indicates data no data transmission transmission on channel on channel

POWER AND SYSTEM LEDs 24V Power RX CH 1 2 3 and 4 TX CH 1 2

24V OK LED (GREEN) ON OFF 24V output No 24V output

SYSTEM LED (GREEN) FLASHING at 1 OFF Hz System System running stopped


OVER CURR. LED (RED) ON OFF Current Not current limiting due to limiting overload.

5V OK LED(GREEN) ON OFF 5V On No 5V on PCB PCB

3V3 OK LED (GREEN) ON OFF 3V3 on No 3V3 on PCB PCB

Page 85

7080 Operation & Installation Handbook TRUE WIND DATA LEDs HEAD LED (GREEN) ON OFF Heading data No Heading available for data available true wind for true wind calculation calculation

WIND LED (GREEN) ON OFF Relative wind No Relative wind speed speed and direction and direction available for available for true wind true wind calculation calculation

COG LED (GREEN) ON OFF Course over Ground No Course over data available for Ground data true wind available for true calculation wind calculation

STW LED (GREEN) ON OFF Speed No Speed Through Through water water available for available for true wind true wind calculation calculation

SOG LED (GREEN) ON Speed over ground data available for true wind calculation

OFF No Speed over ground data available for true wind calculation

True wind LEDs timeout after 3 seconds.


Page 86

7080 Operation & Installation Handbook 4.1.4 Log Data Display: P1248 4.1.4.1 Maintenance There are no -serviceable parts requiring routine maintenance. 4.1.4.2 Fault Finding When carrying out fault finding, personnel involved must take full ESD (electrostatic discharge) precautions. The wearing of a suitable “grounding strap” is recommended.

Before proceeding with any of the checks given below however, first refer to section 4.1.3.5 covering the diagnostics LEDs on the 5 Channel I/O board within the P1100 7080 Master Electronics Unit, in order to check transmission of required IEC 61162-1 (NMEA 0183) messages.

Check availability of 24Vdc power to the unit.

Any loss, interruption or corruption of input serial data will cause the associated displays to revert to show “dashes” as per the information provided within the “Display Mode” sections of the P1248 Log Data Display Data Sheet. Refer to this separate Data Sheet for more details concerning “Display Mode” operational characteristics.

In the first instance, remove the P1248 indicator from the concerned and check all LEDs at the rear of the unit. Check “U OK” LED to ensure processor is running. Dependent upon status of “Valid” and “Data” LEDs, check all connected “Talkers” as appropriate, including serial data transmitted from the P1100, 7080 master electronic unit. If the problem is found to be a loose input NMEA 0183 connection, re-connect the cable core/s concerned. Incoming serial data will be restored to the display and digital readings will recommence.


Page 87

7080 Operation & Installation Handbook If associated talkers are transmitting correct serial data and if connections at the talker/s and at the P1248 unit are satisfactory, then continuity of the serial data transmission cable/s, from the talker/s itself/themselves, must be checked.

If the fault is found to be within the P1248 log data display itself, the unit must be returned for investigation / repair.


Page 88

7080 Operation & Installation Handbook 4.2 Wind System 4.2.1 Wind Sensors: 4.2.1.1 Maintenance For P299 Cup Unit and P300 Vane Unit, see “maintenance” sections of appropriate product data sheets. For Ultrasonic Wind Sensor: P292 Refer to sections 2.8.1.3 “Cleaning” / 2.8.1.4 “Servicing” in this handbook. For Combined Cup and Vane Wind Sensor: P296 Refer to sections 2.8.2.3 “Cleaning” / 2.8.2.4 “Servicing” in this handbook. For Combined Wind and Weather Sensor: P1003, see “maintenance” section of product data sheet.

4.2.2 Wind Data Display: P1249 4.2.2.1 Maintenance There are no -serviceable parts requiring routine maintenance. 4.2.2.2 Fault Finding When carrying out fault finding, personnel involved must take full ESD (electrostatic discharge) precautions. The wearing of a suitable “grounding strap” is recommended.




Page 89

7080 Operation & Installation Handbook Any loss, interruption or corruption of input serial data will cause the associated displays to revert to show “dashes” as per the information provided within the “Display Mode” sections of the P1249 Wind Data Display Data Sheet. Refer to this separate Data Sheet for more details concerning “Display Mode” operational characteristics.

In the first instance, remove the P1249 indicator from the concerned and check all LEDs at the rear of the unit. Check “U OK” LED to ensure processor is running. Dependent upon status of “Valid” and “Data” LEDs, check all connected “Talkers” as appropriate, including serial data transmitted from the P1100, 7080 master electronic unit.

If the problem is found to be a loose input NMEA 0183 connection, re-connect the cable core/s concerned. Incoming serial data will be restored to the display and digital readings will recommence.

If associated talkers are transmitting correct serial data and if connections at the talker/s and at the P1249 unit are satisfactory, then continuity of the serial data transmission cable/s, from the talker/s itself/themselves, must be checked.

If the fault is found to be within the P1249 wind data display itself, the unit must be returned for investigation / repair.


Page 90

7080 Operation & Installation Handbook 4.3 Weather System (Add-on) 4.3.1 Weather Sensor: P1002 4.3.1.1 Maintenance. For P1002 Weather Sensor see “maintenance” section of appropriate product data sheet.

4.3.2 Weather Data Display: P1255 4.3.2.1 Maintenance There are no -serviceable parts requiring routine maintenance. 4.3.2.2 Fault Finding When carrying out fault finding, personnel involved must take full ESD (electrostatic discharge) precautions. The wearing of a suitable “grounding strap” is recommended.



Any loss, interruption or corruption of input serial data will cause the associated displays to revert to show “dashes” as per the information provided within the “Display Mode” sections of the P1255 Weather Data Display Data Sheet. Refer to this separate Data Sheet for more details concerning “Display Mode” operational characteristics.


Page 91

7080 Operation & Installation Handbook In the first instance, remove the P1255 display from the concerned and check all LEDs at the rear of the unit. Check “U OK” LED to ensure processor is running. Dependent upon status of “Valid” and “Data” LEDs, check all connected “Talkers” as appropriate, including serial data transmitted from the P1100, 7080 master electronic unit.

If the problem is found to be a loose input NMEA 0183 connection, re-connect the cable core/s concerned. Incoming serial data will be restored to the display and digital readings will recommence.

If associated talkers are transmitting correct serial data and if connections at the talker/s and at the P1255 unit are satisfactory, then continuity of the serial data transmission cable/s, from the talker/s itself/themselves, must be checked.

If the fault is found to be within the P1255 weather data display itself, the unit must be returned for investigation / repair.


Page 92

9

8

7

6

5

4

3

2

1

A

ISSUE

SHEET

DATE

3406-A3-11

DRAWING No.

B

C

ISSUE

PROJECTION

CHANGE No.

1 of 1

DATE

D

CHANGE No.

E

F

(INCORPORATING THOMAS WALKER & SON LTD) 37-41 BISSELL STREET BIRMINGHAM, B5 7HR, ENGLAND

JOHN LILLEY & GILLIE LTD

G

THIS DRAWING IS THE PROPERTY OF JOHN LILLEY & GILLIE LTD AND IS SUBMITTED AS CONFIDENTIAL INFORMATION WHICH MUST NOT BE USED FOR ANY PURPOSE OTHER THAN WHICH IT IS SUPPLIED. IT IS NOT TO BE COPIED OR USED FOR THE PURPOSE OF MANUFACTURE WITHOUT OUR AUTHORITY IN WRITING.

E F

DRAWN

-

DIMENSIONS IN

H

PATH

FINISH TOLERANCE

-

CHECKED BY

RJA

I

NO FUNCTION

NO FUNCTION

MATERIAL

7080 log and wind

USED ON

NO FUNCTION

C

NTS

SCALE

J

16/12/08

DATE

DISPLAY GPS DATA ON LCD

DISPLAY SYSTEM UP TIME ON LCD

B D

NO FUNCTION

DISPLAY TOTAL DISTANCE ON LCD

A

9

DISPLAY TRIP DISTANCE ON LCD

8

DISPLAY RELATIVE WIND ON LCD

6

DISPLAY HEADING ON LCD

DISPLAY THEORETICAL WIND ON LCD

5 7

DISPLAY TRUE WIND ON LCD

K

L

SHEET

3406-A3-11

DRAWING No.

TITLE

DISPLAY NUMBER OF CAL POINTS ON LCD

DISPLAY ADC AVERAGE VALUE ON LCD

DISPLAY SHIP SPEED ON LCD

SETUP OPTIONS

FUNCTION

4

0 1 2 3

KEY

1 of 1

9

8

7

6

5

4

3

2

1

SHEET

2 3 4 5

29

30

27

A

CHANGE No.

B

32

26 20

SECTION A-A ROTATED (SEE SHEET 2)

15 5

18 19

17

21 22

16 12 31

C

ISSUE

DATE

D

CHANGE No.

E

F



G


9 10

mm

R:\WALKER

PATH

FINISH TOLERANCE DIMENSIONS IN

CHECKED BY

H

2

I

A. RICHARDSON

DRAWN

13 14

MATERIAL

USED ON 4040, 4060 [P98] EM1, EM3

ON ASSEMBLY, RUN FULL CIRCULAR BEAD OF RED HERMETITE ON TOP FACE OF VALVE INBOARD OF THE FOUR FLANGE FIXING HOLES. FIT GASKET, ITEM 9, AND RUN 2nd FULL CIRCULAR BEAD OF RED HERMETITE ON TOP FACE OF GASKET, AGAIN INBOARD OF THE FOUR FIXING HOLES. FIT ITEM 31, LOG TUBE WITH FLANGE, AND SECURE IN POSITION.

24 25

23

PROJECTION

23/02/98 DO/WM/00200 07/02/06 DO/WM/00634 15/04/08 NCR 08/065 20/02/14 ECO 0051

DATE

28

SPLIT PIN MUST BE FITTED

ISSUE

1 OF 2

SECTION A-A ROTATED

2900-4-1-1

DRAWING No.

7

9

1:2

SCALE

J

23/02/06

DATE

8 6

K

L

SHEET

2900-4-1-1

DRAWING No.

1 OF 2

TRANSDUCER & SEAVALVE ASSEMBLY - STEEL HULL

TITLE

STOCK CODE No: P98

3

9

8

7

6

5

4

3

2

1

SHEET

2 3 4 5

A

ISSUE

B

C

ISSUE

PROJECTION

CHANGE No.

2 OF 2

23/02/98 DO/WM/00200 07/02/06 DO/WM/00634 15/04/08 NCR 08/065 20/02/14 ECO 0051

DATE

2900-4-1-1

DRAWING No.

DATE

D

CHANGE No.

DA TE

TE ST ED

E

F



G


IN

I SE TIA LS R IA L

OPEN

SHUT mm H

R:\WALKER

PATH

FINISH TOLERANCE DIMENSIONS IN

CHECKED BY

I

A. RICHARDSON

DRAWN MATERIAL

USED ON 4040, 4060 [P98] EM1, EM3

4 13 14

36.5000

(1 /7")16

1:2

SCALE

J

23/02/06

DATE

K

L

SHEET

2900-4-1-1

DRAWING No.

2 OF 2

TRANSDUCER & SEAVALVE ASSEMBLY - STEEL HULL

TITLE

STOCK CODE No: P98

9

8

7

6

5

4

1 2

A

DATE

11/09/13 13/03/14

ISSUE

* P293B CABLE ASSY.

NMEA 0183 + POWER

STEEL CONDUIT (SEE HANDBOOK)

B

ECO 0060

CHANGE No.

C

ISSUE

SHELL PLATING

ALTERNATIVE TO USING SEAVALVED TYPE

50 METRES *FITTED CABLE

NMEA 0183 + POWER (TO 5 CHANNEL I/O BOARD: SEE SHEET 5)

DATE

EARTH BONDING

D

CHANGE No.

B

0

A

F

E

D

C

ON/OFF

SIMULATOR

BRIGHTNESS

LCD

A B

NMEA 0183 2 CORE + O/ALL SCN

E

F



G

MODE

JO HN L ILL EY & GI LLI E Ltd .

TRIP RESET

P12 48

WALKER

FINISH

CAD : \PATH\FILENAME R:\NEW INDEX

TOLERANCE

DIMENSIONS IN

-

I

CHECKED BY

MATERIAL

H

RJA -

DRAWN

0v

AB

N/A

SCALE

J

11/09/2013

DATE

24vDC SHIPS SUPPLY

180 S

TRUE

JO HN L ILL EY & GI LLI E Lt d.

REL

N 0

NMEA 0183 INPUTS

W9 0

WIND DATA

90 E

P12 49

WALKER

P1249 WIND DATA DISPLAY

NMEA 0183 + POWER 2 x 2 CORE + O/ALL SCN

+ 0v

ON/OFF SWITCH CUSTOMER SUPPLY +24v

+ 0v A B A B A B A B

7080 Log & Wind

RLY1 A B

NMEA 0183 INPUTS

LOG DATA

P1248 LOG DATA DISPLAY

USED ON

24vDC 2 CORE SCN

NMEA 0183 + RESET + POWER 3 x 2 CORE + O/ALL SCN

2 CORE 200ppnm OUTPUT SEE NOTE 4 + O/ALL SCN

A B

ADDITIONAL NMEA 0183 O/PUTS AVAILABLE. REFER TO NOTE 3 AND ALSO SEE SHEET 4 AND SHEET 5. NMEA 0183 2 CORE + O/ALL SCN


STEEL CONDUIT (SEE HANDBOOK)

50 METRES *FITTED CABLE

FOR CLARITY, INPUT SEQUENCE SHOWN HERE IS NOT AS ON ACTUAL P1100 UNIT. REFER TO HANDBOOK AND SHEETS 4 & 5 FOR FULL INFORMATION.

P98/P99 SEAVALVED SKIN FITTING/TRANSDUCER ASSEMBLY

TO SUIT CUSTOMER REQUIREMENTS

HULL PAD / FIXED TRANSDUCER

* P293B CABLE ASSY.

NMEA 0183 NMEA 0183 DATA FROM GYRO ("HDT" FOR TRUE WIND) 2 CORE SCN (TO 5 CHANNEL I/O BOARD SEE SHEET 5)

9

6

3

5 8

7

2

4

1

P1100 7080 MASTER ELECTRONIC UNIT

TO 5 CHANNEL I/O BOARD J20 (24v IN)

3

ALTERNATIVE WIND SENSOR TO USING P292

FROM TRANSDUCER BOARD (SEE SHEET 4)

2

SEE SHEET 2 FOR CONNECTION INFORMATION

*

24v

P296 COMBINED WIND SENSOR

SCN

P292 SOLID STATE WIND SENSOR

CH1 NMEA

TO SUIT CUSTOMER REQUIREMENTS

SCN 0183 O/P

1

24v

NMEA 0183 O/PUT FOR CONNECTION IF REQ'D.

SHEET 1 OF 5

K

L

3352-A3-173

DRAWING No.

TYPICAL 7080 CONNECTION DIAGRAM P1100; P292 / P296 OPTION; P293B; P98; P99 / P57 OPTION; P1248; P1249. (LOG AND WIND SYSTEM)

TITLE

+ 0v

NMEA 0183 2 CORE SCN


A B

NOTE: 1. P1248 LOG DISPLAY IS FED FROM 24vDC OUT FROM P1100 MASTER ELECTRONIC UNIT (MEU). NOTE THAT THE "RESET" LINK ON THE TRANSDUCER BOARD IN THE MEU IS TO BE SET TO THE RIGHT HAND POSITION. SEE ALSO 7080 HANDBOOK SECTION 2.7.1 (PAGE 27). 2. ALL SERIAL IEC 61162-1 (NMEA 0183) INPUTS TAKEN TO 5 CHANNEL I/O BOARD IN P1100, 7080, MEU. 3. IN TOTAL 6 x IEC 61162-1 (NMEA 0183) OUTPUTS ARE AVAILABLE AT THE P1100, 7080, MEU. (2 ON TRANSDUCER PCB / 4 ON 5 CHANNEL I/O BOARD). 4. IN TOTAL 2 PAIRS OF 200ppnm S ARE AVAILABLE AT THE P1100, 7080, MEU (BOTH PAIRS ON THE TRANSDUCER PCB: SEE SHEET 4). 5. DENOTES CABLES SUPPLIED BY JOHN LILLEY & GILLIE Ltd. ALL OTHER CABLES ARE TO BE SUPPLIED BY SHIPYARD. 6. FOR CLARITY SCREENING IS NOT SHOWN FULLY ON ALL SCREENED CABLES. 7. SEE SHEETS 2 AND 3 FOR CONNECTIONS TO P1248 AND P1249 RESPECTIVELY. SEE SHEETS 4 AND 5 FOR CONNECTIONS AT TRANSDUCER BOARD AND 5 CHANNEL I/O BOARD, RESPECTIVELY, WITHIN THE P1100, 7080, MEU. 8. REFER TO PRODUCT HANDBOOK / DATA SHEETS FOR FULL INFORMATION.

24v

3352-A3-173

SCN

PROJECTION

CH1 NMEA

SHEET 1 OF 5

24v

DRAWING No.

SCN 0183 O/P

9

8

7

6

5

4

3

2

1

1 2

A

DATE

11/09/13 13/03/14

ISSUE

B

ECO 0060

CHANGE No.

FROM P1100 : TRANSDUCER BOARD. (SEE SHEETS 1 & 5)

C

DATE

RESET

ISSUE

N.O. COM

24vDC

A B

+24v 0v

INPUT NMEA 0183

D

INPUT

RJ45

A B

DATA

VALID

CH1

OK

U

OUT CH1


DATA DATA DATA

VALID VALID VALID

NMEA 0183 IN CH2 CH3 CH4

RESET

LINK #

E

F



G


RLY 3

RLY 2

RLY 1

+ 0v

FINISH


TOLERANCE

DIMENSIONS IN

-

I

CHECKED BY

MATERIAL

H

RJA -

DRAWN

7080 Log & Wind

24vDC

NTS

SCALE

J

11/09/2013

TO P1249 (SEE SHEET 3)

SHEET 2 OF 5

K

L

3352-A3-173

DRAWING No.


TITLE

NMEA 0183

DATE

A B

+24v 0v

NOTE: RLY 1 ONLY APPLICABLE TO THIS DISPLAY. USED FOR "RESET" ONLY # ENSURE LINK BETWEEN "COM" AND 0v IS MADE AS SHOWN.

USED ON

2 x 2 CORE WITH O/ALL SCREEN

OUTPUT

RJ45

ACTIVE

ACTIVE

ACTIVE

P1248 LOG DATA DISPLAY


CHANGE No.

SUITABLE EARTH LEAD TO BE PROVIDED BY SHIPYARD.

REFER TO P1248 DATA SHEET FOR FULL INFORMATION ON IEC61162-1 (NMEA 0183) MESSAGES THAT WILL BE ACCEPTED AND ED THROUGH.

3352-A3-173

PROJECTION

A B

24vDC

SHEET 2 OF 5

A B

24vDC

N.O

DRAWING No.

SCN

+24v 0v

SCN

+24v 0v

COM

N.O N.O

N.O COM COM

N.C N.C N.C

9

8

7

6

5

4

3

2

1

1 2

A

DATE

11/09/13 13/03/14

ISSUE

FROM P1248 (SEE SHEET 2)

B

ECO 0060

CHANGE No.

24vDC

C

ISSUE

+24v 0v

INPUT A NMEA 0183 B

DATE

INPUT

RJ45

D

CHANGE No.

A B

DATA

VALID

CH1

OK

U

OUT CH1


DATA DATA DATA

VALID VALID VALID


E

F



G


+ 0v OUTPUT

RJ45

ACTIVE

ACTIVE

ACTIVE

FINISH


TOLERANCE

DIMENSIONS IN

-

I

CHECKED BY

MATERIAL

H

RJA 7080 Log & Wind -

DRAWN USED ON

2 CORE WITH O/ALL SCREEN

RLY 3

RLY 2

RLY 1

P1249 WIND DATA DISPLAY


SUITABLE EARTH LEAD TO BE PROVIDED BY SHIPYARD.

# REFER TO P1249 DATA SHEET FOR FULL INFORMATION ON IEC61162-1 (NMEA 0183) MESSAGES THAT WILL BE ACCEPTED AND ED THROUGH.

3352-A3-145

PROJECTION

A B

24vDC

SHEET 3 OF 5

SCN

+24v 0v

DRAWING No.

A B

24vDC

+24v 0v

SCN

SCN

N.O N.O

COM COM COM

N.C N.C N.C

N.O

A B

NTS

SCALE

J

11/09/2013

DATE

NMEA 0183

SHEET 3 OF 5

K

L

3352-A3-173

DRAWING No.


TITLE

NMEA 0183 O/PUT FOR CONNECTION TO OTHER SHIPBOARD EQUIPMENT IF REQ'D.

NOTE: RLY 1 / 2 / 3 NOT APPLICABLE TO THIS DISPLAY.

9

8

7

6

5

4

3

2

(OUTPUT) LOAD

N

TE4

TE5

N

N

TE1

(INPUT) LINE

ALTERNATIVE L-0020 FILTER

L

TE3

TE2 TE5

S-E

TP1

DATE

11/09/13 13/03/14

1 2

B

ECO 0060

CHANGE No.

C

ISSUE

DATE

TE4

BLACK

IC8

+

TE3

RED

5

7

8

+

RL2

RL1 IC14

LINK

RESET

B

*

A

S-E

B R/S A

A

B

200 PPM

B TRANSDUCER

IC2

RL3

RL2

S-E

IC15

IC10

9 10 11 12 13 14 15 16 17 18 19 20 21

C34

T1

E

F



G


TO P1248 200ppnm TO P99 (OR P57) LOG DATA SEE NOTE 4 SEE SHEET 1 SHEET 1 DISPLAY SEE SHEETS 1 & 2

CHANGE No.

D

6

PIN 1

NMEA OUT A SCR 24V OUT A SCR B

+

24V IN

4

3

2

1

GREEN

NOTE: 1 OFF FILTER (EITHER L-0006 OR L-0020) FITTED ON L.H. INSIDE FACE, OF MEU ENCLOSURE.

2

FOR CLARITY NOT ALL COMPONENTS ARE SHOWN

TERMINAL NUMBERS GIVEN FOR REFERENCE ONLY (SEE TABLE)

ISSUE

A

GREEN

TE2 TE1

L

(INPUT) LINE

ORIGINAL FILTER L-0006

(OUTPUT) LOAD

L

TE4

BLACK

2

RED

RED

BLACK

TE3

F1436

TE2

3352-A3-173 TP10

T2

FINISH


TOLERANCE

DIMENSIONS IN

I

CHECKED BY

MATERIAL

H

RJA

-

YELLOW BLACK SCREEN RED

O/C A O/C A O/C B O/C B C1 C2 P1 SCR P2

13 14 15 16 17 18 19 20 21

POTENTIAL FREE S 200 PPM

NTS

SCALE

J

11/09/2013

DATE

SHEET 4 OF 5

K

L

3352-A3-173

DRAWING No.


TITLE

TRANSDUCER BOARD CONNECTIONS

DRAWN

-

BROWN

RESET A

TRIP DISTANCE (SEE NOTES)

RESET B

11 12

NMEA O/P TWO

B

10

A

8

NMEA O/P ONE

SCREEN

B

7

SUPPLY TO INDICATORS

PRE-WIRED

PRE-WIRED

DETAILS / COLOUR

9

A

+24v DC

4 SCREEN

0v

3

6

0v

5

+24v DC

1

SIG

2

*

TERMINAL REFERENCE

NOTE: WITH "RESET" LINK IN STANDARD R.H. POSITION (CENTRE AND R.H. TERMINALS LINKED), THE MAIN / SINGLE P1248 LOG DATA DISPLAY MUST SHARE COMMON 24vDC SUPPLY WITH THE 7080 ELECT. UNIT, WITH "RESET" (0v LINE) FROM N.O. ON RLY 1 OF THE DISPLAY CONNECTED INTO TERM. REF. 12 (R/S A). THERE IS NO CONNECTION REQUIRED AT TERM. REF. 11 (R/S B).

ISSUE 5

7080 Log & Wind

R26

DO NOT REMOVE LID

VR2 SETS LOG ZERO SPEED

CN1

USED ON

C38

C37

C36

C39

C40

C42

C41

C44

ADJUST IN ACCORDANCE WITH HANDBOOK

TP11

CN22

1

C29

C43

PROJECTION

BLACK

TR2

TE1

F1

SCN

SERAL No T WALKER & SON

SHEET 4 OF 5

N.O.

RED

RED

F1436

(COM)

RESET

BLACK

BLACK

IC9 BROWN

BROWN

TE5

0v

24vDC

YELLOW

YELLOW

TR1

+24v A

BLACK

BLACK

2001

F1436

DRAWING No.

2 CORE +O/ALL SCN

-

GREEN

B

SCR

SCN

RED

NMEA 0183 3 x 2 CORE +O/ALL SCN

RED

RED

50 METRES CABLE (ATTACHED TO P99 TRANSDUCER OR P57 TRANSDUCER)

-

9

8

7

1 2

A

DATE

11/09/13 13/03/14

ISSUE

B

ECO 0060

CHANGE No.

C

ISSUE

D

CHANGE No.

D10

D11

D12

D6

D7

D17

D23

D19

D9

D8

D14

D13

J2

J1

HEAD WIND STW COG SOG

EXPANDER

U CONNECTOR

20 19

20 19

NMEA INTERFACE PCB VERSION 1 JOHN LILLEY AND GILLIE LTD 2007

2 1

2 1

D50

D52

D51

E

F



G


D59

D70

RT6

RT5

NMEA OUTPUTS

LEGACY CHANNEL

OVER CURR.

24V OK

D58

D68

FINISH


TOLERANCE

DIMENSIONS IN

I

CHECKED BY

MATERIAL

H

NMEA 0183 AVAILABLE FOR OTHER SHIP'S EQUIPMENT IF REQ'D. SEE SHEET 1 & NOTE 3.

NMEA 0183 AVAILABLE FOR OTHER SHIP'S EQUIPMENT IF REQ'D. SEE SHEET 1 & NOTE 3.

NTS

SCALE

J

11/09/2013

DATE

SHEET 5 OF 5

K

L

3352-A3-173

DRAWING No.


TITLE

5 CHANNEL I/O BOARD CONNECTIONS

RJA

-

NMEA 0183 2 CORE + O/ALL SCN NMEA 0183 AVAILABLE FOR OTHER SHIP'S EQUIPMENT IF REQ'D. SEE NOTE 3 SHEET 1.

A B

DRAWN

-


O/PUT CH2 NOT USED

A B

7080 Log & Wind

CH.5

D25

CH.4

D21

CH.3

D26

CH.2

D27

CH.1

D22

OVER CURR.

24V OK

USED ON

D53

U7

D48

NMEA TX

SYSTEM

D49

NOTE: J17: 24vDC OUT IS PRE-CONNECTED THROUGH TO TERM REFS 1 & 2 ON TRANSDUCER PCB.

24vDC SHIPS SUPPLY SEE SHEET 1.

DATE

D5

D3

D1

24V OUT J17

CH.5

CH.4

CH.3

CH.2

0V +V

OVER CURR.

24V OK

OVER CURR.

24V OK

OVER CURR.

24V OK

CH.1

NMEA RX

A B CH.5

24V IN J20

D60

D62

D64

OVER CURR.

RT1

24V OK

D16

D15

A B CH.4

0V +V

D57

RT4

D56

RT3

D55

RT2

D54

D66

5V OK 3V3 OK

A B CH.3

CONNECT SCN TO APPROPRIATE P1100 CABLE GLAND USED


B A

BLUE 0v RED +24v B GRN A YELL

NMEA INPUTS

3390-PCB-12 VER. 1

A B CH.2

6

NMEA 0183 "HDT" FROM GYRO FOR "TRUE" WIND. SEE SHEET 1.

TO P292 WIND NMEA 0183 + POWER SENSOR P293B CABLE ASSY SEE SHEET 1.

3352-A3-173

PROJECTION

J4

5

4

3

2

1

SHEET 5 OF 5

DATA

DRAWING No.

J16

J3

J15

J6

J14

J8

J13

J10

VALID

A B +24v 0v CH.1

J12

INVALID

R53 R54 R55 R56

A B +24v 0v CH.2 A B +24v 0v CH.3 A B +24v 0v CH.4 A B CH.5

R58

J11

0v

+24v 0v J9

+24v

R57

J7

2 CORE + O/ALL SCN

B +24v 0v A CH.1

DATA

J19

VALID

J5

INVALID

J18

9

8

7

6

5

4

3

(OUTPUT) LOAD

GREEN

2

(OUTPUT) LOAD

07-10-04 13-03-14

1 2

ECO 0060

B

TP1

S-E

TE4

BLACK

IC8

F1436

24V OUT A

5

7

8

C

ISSUE

PIN 1

+

F1436 B

A

S-E

B R/S A

D

CHANGE No.

IC14

T1

LINK

RESET

A

B

200 PPM

B TRANSDUCER

RL3

RL2

S-E

IC15

IC10

IC2

E

F



G


FOR CLARITY NOT ALL COMPONENTS ARE SHOWN

DATE

RL2

RL1

SCR

9 10 11 12 13 14 15 16 17 18 19 20 21

C34

NMEA OUT SCR B A SCR

6

TERMINAL NUMBERS GIVEN FOR REFERENCE ONLY (SEE TABLE)

24V IN

4

3

2

1

TE3

RED

TR1

NOTE: 1 OFF FILTER (EITHER L-0006 OR L-0020) FITTED ON L.H. INSIDE FACE OF MEU ENCLOSURE.

2

CHANGE No.

TE2 TE5

DATE

TE1

(INPUT) LINE

ISSUE

A

N

TE4

TE5

N

N

ALTERNATIVE L-0020 FILTER

L

TE3

TE2 TE1

L

(INPUT) LINE

ORIGINAL FILTER L-0006

RED

RED

2

L

BLACK

TE4

RED

TE3

F1

1

GREEN

TE2

TR2

TE1

PROJECTION

IC9 BROWN

F-1877

BLACK

TP10

R26

DO NOT REMOVE LID

VR2 SETS LOG ZERO SPEED

T2

ISSUE 5

RJA CHECKED BY

7070 MATERIAL

H

DRAWN USED ON

CAD : \PATH\FILENAME R:WALKER\F-1877 Iss2

DIMENSIONS IN

I

-

-

FINISH

TOLERANCE

-

CN1

A

8

BROWN

O/C A O/C A O/C B O/C B C1

13 14 15 16 17 18

YELLOW BLACK SCREEN RED

C2 P1 SCR P2

19 20 21

POTENTIAL FREE S 200 PPM

RESET A

12

TRIP DISTANCE (SEE NOTES)

B RESET B

11

NMEA O/P TWO

NMEA O/P ONE

SUPPLY TO INDICATORS

SUPPLY

SUPPLY

COLOUR

10

SCREEN

B

7

9

A

+24v DC

4 SCREEN

0v

3

6

0v

5

+24v DC

1

SIG

2

TERMINAL REFERENCE

J

NOT TO SCALE

SCALE

07 OCT' 2004

DATE

K

L

SHEET 1 OF 1

F-1877

DRAWING No.

7070 ELECTRONIC UNIT - HANDBOOK

TITLE TRANSDUCER PCB ASSY.

NOTE: WITH "RESET" LINK IN STANDARD R.H. POSITION (CENTRE AND R.H. TERMINALS LINKED), THE MAIN/SINGLE LOG DATA DISPLAY MUST SHARE COMMON 24vDC SUPPLY WITH THE 7070 ELECT. UNIT, WITH "RESET" FROM THE DISPLAY CONNECTED INTO TERM. REF. 12 (R/S A). IF MAIN/SINGLE LOG DATA DISPLAY USES A LOCAL 24vDC SUPPLY: NOT COMMON WITH THAT FEEDING THE 7070 ELECT. UNIT, THEN "RESET" LINK MUST BE CHANGED TO L.H. (DOTTED) POSITION (L.H. AND CENTRE TERMINALS LINKED). RESET STILL CONNECTS INTO TERM. REF. 12 (R/S A) BUT IN ADDITION THE +24v ON THE LOG DISPLAY MUST CONNECT BACK TO TERM REF. 11 (B R/S).

C38

C37

C36

C39

C40

C42

C41

C44

ADJUST IN ACCORDANCE WITH HANDBOOK

TP11

C43

SHEET 1 OF 1

YELLOW

RED

RED

RED

SERAL No 2001 T WALKER & SON

F1436

DRAWING No.

GREEN

CN22

BLACK

BLACK

BLACK

C29

+

TE5

-

BLACK

+

-

9

8

7

6

5

4

3

2

1

SHEET

03-12-07

1

A

DATE

ISSUE

3390-A3-13

DRAWING No.

B

C

ISSUE

PROJECTION

CHANGE No.

1 OF 1

DATE

D

CHANGE No.

E

F



G


H

PATH

FINISH

TOLERANCE DIMENSIONS IN

CHECKED BY

RJA

P1100 MATERIAL

DRAWN

USED ON

I

NTS

SCALE

J

03-12-07

DATE

K

L

SHEET

3390-A3-13

DRAWING No.

1 OF 1

TITLE NMEA IINTERFACE I/O PCB FRONT ELEVATION (for H/BK)

218 WITH LID OPEN AT 90 DEG

2 5 8 0

1 4 7 A

F

E

D

C

WALKER

B

9

6

3

ILLUM

ON

ON

POWER OFF

LOG SIMULATOR

SPEED

OFF

WEIGHT: 7.6Kg

SPEC / "RATING" PLATE

100 WITH LID OPEN THROUGH 120 DEG MAX

9

8

7

6

5

4

3

2

1 2 3

PROJECTION

A

B

-

CHANGE No.

13-05-09 Specific Issues for Shipyards 25-06-14 withnamed referenced Hull Nos 03-12-14 ECO 0072

DATE

C

ISSUE

72

54.5

DATE

D

CHANGE No.

8.5

E

F



G



DIMENSIONS IN

I

-

-

FINISH

TOLERANCE

RJA

DRAWN

144

CHECKED BY

H

MODE

JOHN LILLEY & GILLIE Ltd.

TRIP RESET

MATERIAL

USED ON

LOG DATA

FOR MOUNTING ON BRIDGE WINGS: REAR OF INDICATOR BEZEL MUST BE FULLY SEALED AGAINST / CONSOLE IN ORDER TO MAINTAIN IP65 RATING OF FRONT OF UNIT. THE REAR SECTION OF DISPLAY IS NOT SEALED! USE OF DOW CORNING 732 SILICONE SEALANT, OR EQUIVALENT, IS RECOMMENDED AND IS RESPONSIBILITY OF INSTALLER TO ENSURE SUITABILITY WITH / CONSOLE MATERIAL CONCERNED.

ISSUE

3

135.5

1

SHEET 1 OF 2

3419-A3-10

DRAWING No.

NTS

SCALE

J

13/05/2009

DATE

SHEET 1 OF 2

K

L

3419-A3-10

DRAWING No.

DATA DISPLAY

OUTLINE OF P1248 LOG

TITLE

P1248

WALKER

144

9

8

7

6

5

4

3

2

1

1 2 3

A

ISSUE

B

-

CHANGE No.

C

ISSUE

PROJECTION

13-05-09 Specific Issues for Shipyards 25-06-14 withnamed referenced Hull Nos 03-12-14 ECO 0072

DATE

3419-A3-10

DATE

D

CHANGE No.


F


E

OUT CH1


DATA DATA DATA

VALID VALID VALID


RLY 3

RLY 2

RLY 1

+ 0v

G


DIMENSIONS IN

I

-

-

H

FINISH

TOLERANCE

-

CHECKED BY

RJA

DRAWN

OUTPUT

ACTIVE

ACTIVE

ACTIVE

MATERIAL

USED ON

REAR ELEVATION

A B

24vDC


INPUT

DATA

VALID

CH1

OK

U

135.5

SCN

SHEET 2 OF 2

SCN

24vDC

N.O N.O N.O

N.C

COM COM

COM

N.C N.C

DRAWING No.

NTS

SCALE

J

13/05/2009

DATE

135.5

SHEET 2 OF 2

K

L

3419-A3-10

DRAWING No.

DATA DISPLAY

OUTLINE OF P1248 LOG

TITLE

9

8

7

6

5

4

3

2

PROJECTION

A

DATE

07-05-09 29-09-14 03-12-14

1 2 3

B

ECO 0072

Specific Issues for named Shipyards with referenced Hull Nos

-

CHANGE No.

C

ISSUE

72

54.5

DATE

D

CHANGE No.

8.5

E

F



G



DIMENSIONS IN

I

mm

FINISH

CHECKED BY

RJA

DRAWN

144

-

H

180 S

NTS

SCALE

J

07/05/2009

DATE

TRUE


REL

N 0

TOLERANCE

MATERIAL

USED ON

W90

WIND DATA


ISSUE

3

135.5

1

SHEET 1 OF 2

3418-A3-10

DRAWING No.

SHEET 1 OF 2

K

L

3418-A3-10

DRAWING No.

DATA DISPLAY

OUTLINE OF P1249 WIND

TITLE

90 E

P1249

WALKER

144

9

8

7

6

5

4

3

2

1

1 2 3

A

DATE

07-05-09 29-09-14 03-12-14

ISSUE

CHANGE No.

B

ECO 0072

C

ISSUE

PROJECTION

Specific Issues for named Shipyards with referenced Hull Nos

3418-A3-30

DATE

D

CHANGE No.


F


E

OUT CH1


DATA DATA DATA

VALID VALID VALID


+ 0v

G


DIMENSIONS IN

I

-

FINISH

-

CHECKED BY

RJA

DRAWN

ACTIVE

ACTIVE

ACTIVE

TOLERANCE

MATERIAL

USED ON

OUTPUT

H

RLY 3

RLY 2

RLY 1

REAR ELEVATION

A B

24vDC


INPUT

DATA

VALID

CH1

OK

U

135.5

SCN

SHEET 2 OF 2

SCN

24vDC

N.O N.O N.O

N.C

COM COM

COM

N.C N.C

DRAWING No.

NTS

SCALE

J

17/11/2014

DATE

135.5

SHEET 2 OF 2

K

L

3418-A3-30

DRAWING No.

DATA DISPLAY

OUTLINE OF P1249 WIND

TITLE

9

8

7

6

5

4

3

2

1 2 3 4

PROJECTION

A

B

-

CHANGE No.

10-11-08 07-05-09 Specific Issues for Shipyards 16-07-14 withnamed referenced Hull Nos 03-12-14 ECO 0072

DATE

C

ISSUE

72

54.5

DATE

D

CHANGE No.

8.5

E

F



G



DIMENSIONS IN

I

-

-

H

FINISH

TOLERANCE

-

CHECKED BY

RJA

DRAWN

144


Pr mBar

MATERIAL

USED ON

WEATHER DATA


ISSUE

4

135.5

1

SHEET 1 OF 2

3423-A3-10

DRAWING No.

Rh %

NTS

SCALE

J

10/11/2008

DATE

SHEET 1 OF 2

K

L

3423-A3-10

DRAWING No.

OUTLINE OF P1255 WEATHER DATA DISPLAY

TITLE

P1255

WALKER

144

9

8

7

6

5

4

3

2

1

1 2 3 4

A

ISSUE

B

-

CHANGE No.

10-11-08 07-05-09 Specific Issues for Shipyards 16-07-14 withnamed referenced Hull Nos 03-12-14 ECO 0072

DATE

C

ISSUE

PROJECTION

DATE

D

CHANGE No.


F


E

OUT CH1


DATA DATA DATA

VALID VALID VALID


RLY 3

RLY 2

RLY 1

+ 0v

G


DIMENSIONS IN

I

-

-

H

FINISH

TOLERANCE

-

CHECKED BY

RJA

DRAWN

OUTPUT

ACTIVE

ACTIVE

ACTIVE

MATERIAL

USED ON

REAR ELEVATION

A B

24vDC


INPUT

DATA

VALID

CH1

OK

U

135.5

SCN

SHEET 2 OF 2

3423-A3-10

SCN

24vDC

COM

N.O N.O

N.O COM COM

N.C N.C N.C

DRAWING No.

NTS

SCALE

J

10/11/2008

DATE

135.5

SHEET 2 OF 2

K

L

3423-A3-10

DRAWING No.

OUTLINE OF P1255 WEATHER DATA DISPLAY

TITLE

138.0 +1.0

138.0 +1.0

SQUARE CORNERS REQUIRED

7080

21 TO 28

9

8

7

6

5

4

3

2

1

SHEET

1 2

A

ISSUE

B

C

ISSUE

120

128

PROJECTION

CHANGE No.

1 OF 1

26-03-07 P05L067 09-08-07 P05L067 Mk2

DATE

3389-A3-7

DRAWING No.

DATE

D

CHANGE No.

E

F



G


4 x FIXING HOLES Ø8.2

mm H

PATH

FINISH

TOLERANCE DIMENSIONS IN

CHECKED BY

RJA

DRAWN MATERIAL

USED ON

160.0 CRS

200

I

.8XP

SCALE

J

26-03-07

DATE

200 K

L

SHEET

3389-A3-7

DRAWING No.

TITLE OUTLINE OF P1010 POWER SUPPLY UNIT

220.0 CRS 1 OF 1

A

n°

ENTER "KNOWN" MAX SPEED (x10 RULE APPLIES) AND PRESS [E] REF: 2.9.3.1 Para.2

SHIP CONTINUES AT IDENTICAL STEADY "KNOWN" MAX SPEED

B

REDUCE ENGINE RPM TO PRODUCE SLOWER STEADY "KNOWN" SPEED. REF: 2.9.3.1 Para.3

C

ENTER SLOWER "KNOWN" SPEED (x10 RULE APPLIES) AND PRESS [E] REF: 2.9.3.1 Para.3

SHIP CONTINUES AT IDENTICAL SLOWER STEADY "KNOWN" SPEED

D

6. REFER TO HANDBOOK FOR FULL "KNOWN SPEED" CALIBRATION INFORMATION.

5. TWO ADDITIONAL CALIBRATION RUNS AT OTHER SPEEDS (DIFFERENT ENGINE REVS) MAY BE PERFORMED AS NECESSARY FOR THE TYPE AND SPEED RANGE OF THE VESSEL CONCERNED. FURTHER RUNS MAY BE PERFORMED AS CONSIDERED NECESARY FOR ACCURACY.

4. FIRST CALIBRATION POINT IS ENTERED AT ANY TIME DURING "KNOWN" MAX SPEED RUN CARRIED OUT BETWEEN "A" AND "B". SECOND CALIBRATION POINT IS ENTERED AT ANY TIME DURING THE SLOWER CALIBRATION RUN CARRIED OUT BETWEN "C" AND "D".

3. n° WILL BE A SUITABLE HEADING APPROPRIATE TO THE SEA AREA IN WHICH CALIBRATION IS TO BE PERFORMED.

2. WITH THE LCD SHOWING THE CONFIGURATION MENU, [2] IS PRESSED TO ENTER THE "CALIBRATE" MENU. [1] IS THEN PRESSED TO ENTER THE "KNOWN SPEED" CALIBRATION METHOD.

1. "ZERO" MUST ALREADY HAVE BEEN SET IN ACCORDANCE WITH SECTION 2.9.2 / 2.9.3.1 Para.1 OF THE 7080 HANDBOOK.

NOTES:

GET SHIP UP TO STEADY "KNOWN" MAX SPEED REF: 2.9.3.1 Para.2

D

A

END RUN 2 HERE PRESS [E] REF: 2.9.3.2 Para.9

n° + 180°

n°

END RUN 1 HERE PRESS [E] REF: 2.9.3.2 Para.6

START RUN 2 HERE. SHIP AT MAX SPEED & COURSE STEADY. PRESS [E] REF: 2.9.3.2 Para.8

START RUN 1 HERE PRESS [E] REF: 2.9.3.2 Para.5

C

B

DO NOT CHANGE ENGINE RPM REF: 2.9.3.2 Para.7

5. PERFORM ADDITIONAL CALIBRATION RUNS AT OTHER SPEED/S (DIFFERENT ENGINE REVS) AS NECESSARY FOR THE TYPE AND SPEED RANGE OF THE VESSEL CONCERNED. REFER TO HANDBOOK FOR FULL INFORMATION.

4. n° WILL BE A SUITABLE HEADING APPROPRIATE TO THE POSITION OF THE MEASURED MILE POSTS. A TO B = C TO D = 1 NAUTICAL MILE OR OTHER MEASURED AND ACCEPTABLE "KNOWN" NM DISTANCE.

3. ON THE RETURN "RUN 2" OF THE SHIP, THE CALIBRATION MUST BE RUN FOR THE SAME "MEASURED MILE" DISTANCE AND IDEALLY SHOULD BE A RECIPROCAL RUN. A PARALLEL RETURN RUN IS ACCEPTABLE AS LONG AS THE SEPARATION BETWEEN THE TWO COURSES IS KEPT TO A MINIMUM. THIS ENSURES THAT SEA/TIDAL CONDITIONS ARE THE SAME FOR BOTH RUNS.

2. WITH THE LCD SHOWING THE CONFIGURATION MENU, [2] IS PRESSED TO ENTER THE "CALIBRATE" MENU. [2] IS THEN PRESSED TO ENTER THE "KNOWN DISTANCE" CALIBRATION METHOD.

NOTES: 1. "ZERO" MUST ALREADY HAVE BEEN SET IN ACCORDANCE WITH SECTION 2.9.2 / 2.9.3.2 Para.1 OF THE 7080 HANDBOOK.

GET SHIP UP TO STEADY MAX SPEED (ENTER "KNOWN DISTANCE") REF: 2.9.3.2 Paras.2, 3 & 4

MEASURED (NAUTICAL) MILE OR OTHER KNOWN NM DISTANCE (0.2NM min - 2.0NM max)

D

A n° + 180° START RUN 2. SHIP AT MAX SPEED & COURSE STEADY. PRESS [E] REF: 2.9.3.3 Para.8

n° C

B

DO NOT CHANGE ENGINE RPM REF: 2.9.3.3 Para.7

5. PERFORM ADDITIONAL CALIBRATION RUNS AT OTHER SPEED/S (DIFFERENT ENGINE REVS) AS NECESSARY FOR THE TYPE AND SPEED RANGE OF THE VESSEL CONCERNED. REFER TO HANDBOOK FOR FULL INFORMATION.

4. n° WILL BE A SUITABLE HEADING APPROPRIATE TO THE SEAWAY CONCERNED. A TO B = C TO D = 1 NAUTICAL MILE AS CALCULATED FROM THE "APPROVED" GPS SYSTEM ON BOARD VESSEL.

3. ON THE RETURN "RUN 2" OF THE SHIP, THE CALIBRATION SHOULD BE PERFORMED OVER A RECIPROCAL RUN. A PARALLEL RETURN RUN IS ACCEPTABLE AS LONG AS THE SEPARATION BETWEEN THE TWO COURSES IS KEPT TO A MINIMUM. THIS ENSURES THAT SEA/TIDAL CONDITIONS ARE THE SAME FOR BOTH RUNS. POSITIONS OF "B" AND "C" DO NOT HAVE TO BE COINCIDENTAL.

2. WITH THE LCD SHOWING THE CONFIGURATION MENU, [2] IS PRESSED TO ENTER THE "CALIBRATE" MENU. [3] IS THEN PRESSED TO ENTER THE "GPS MILE (D/T)" CALIBRATION METHOD.

NOTES: 1. "ZERO" MUST ALREADY HAVE BEEN SET IN ACCORDANCE WITH SECTION 2.9.3 / 2.9.3.3 Para.1 OF THE 7080 HANDBOOK.

END OF RUN 2 DETERMINED AUTOMATICALLY PRESS [E] TO ACCEPT DATA REF: 2.9.3.3 Para.9

GET SHIP UP TO STEADY MAX SPEED REF: 2.9.3.2 Paras.2, 3 & 4

1 NAUTICAL MILE: CALCULATED AUTOMATICALLY FROM "APPROVED" GPS SYSTEM END OF RUN 1 DETERMINED START RUN 1 AUTOMATICALLY PRESS [E] PRESS [E] TO ACCEPT DATA REF: 2.9.3.3 Para.5 REF: 2.9.3.3 Para.6

& '

(

(&-, 0* . & , & &,*- & * ( *(

(&-, &,*- & * (

0* . ( *(

+

%'(

()*+' & * (

( $

1

! "#

$

" #%"

%

()*+' & * ( (' ( &

,, ( *(

( . /&,

* &-,

()*+' & * ( (' (&-, * &-, * &-, $

! "#

&

( * &-, *( 2,& .

&( (&-, ! *(+

()*+' & * ( ('

* ( ! "# + ( ' &( (&-, ' '

" #%"

&,*- & * (

(' ( &

&

,, ( *(

()*+' & * (

( . /&,

! !

3 %

0

0 "

$

4 ! 5

()*+' & * ( ('

(' * ( $ " #%" &,*- & * ( ('

()*+' & * ( (' &('&,, ( & )*= '

&

"

( 4;

<; 8

*( ( : ( 5

#

( 7 8

)

6

)

(

(

!

9 8

(

.&( (

*+*

(

*+*

(

( *( (

#

$%&'

"

()*+' & * (

('

* ( +

)

8 *(+

()*+' & * ( % %

(' * ( 2& + (&-, + (> &,*- & (&-,

&

(*

(

*

(

( (

()*+' & * (

('

% )&',

3 %

&,*- & * ( ( *(' ' , ) . ' , (*

&

$%&'

&,*- & * (

('

(' * ( 3 % ,& '(> &,*- & ) & ?' *(+ &(&, +' ( ( *( )& - & *

0

&,*- & * ( (' * ( &,*- & + &+&*( & A(

&

"

( *( ( : 4$; < $;8 ( 5

#

#

( (

6

7 8

( (

9

8

.&(

*+*

)

!

(

*+*

(

. A ( &+&*( ( / , &+ ) ( *-, /&,'

(

@&,* (

)*

. A .& .* &,*- & * ( *( . &-, *( & ( *(+

+

*(

!

&, ' ' &,*- & * (

) *(

+

&,*- & * (

('

*( )',,

)

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