INFORMATION IS12. Instruments ALWAYS AT THE FOREFRONT OF TECHNOLOGY

Transcription

1 D E A L E R INFORMATION IS12 Instruments

2 Issue /1/2002 Simrad Ltd (Margate) Star Lane, Margate, Kent CT9 4NP, UK Telephone +44 (0) Facsimile +44 (0) productsupportmargate@simrad.com 2002 Simrad Ltd Contents Introduction 3 IS12 Speed Instrument 4 IS12 Depth Instrument 5 IS12 Combi Instrument 6 IS12 Wind Instrument 7 IS12 Compass Instrument 8 IS12 Data Instrument 9 IS12 Mega Instrument 10 IS12 Remote/Alarm 11 Speed Transducer 12 Depth Transducer 12 Wind Transducer 12 Order Codes & Accessories 13 Suggested Systems 14 Frequently Asked Questions 15 NMEA Information 17 Calibration 18 Fault Finding 19

3 Introduction The Simrad IS12 System is a flexible modular series of instruments with large, clear displays, easy to operate functions and robust, weatherproof construction. Whether as a stand alone instrument, or as part of a networked navigation system, IS12 will offer superb performance. IS12 Network The IS12 system is built around a high speed bus networking system that allows instruments to be easily interconnected and share data - all units are interconnected and powered using a standard single cable. IS12 Features Low cost Intuitive operation Easy to access functions Front or Rear Mounting of displays - WIND Tx DATA WIND 12v DC In SPEED/LOG DEPTH REMOTE New high speed network High quality, high contrast LCD Large digits (40mm on Speed and Depth displays) 13 segment digits - easier to read Wide viewing angle Backlit display & keypad Bright, even backlighting Remote control option Easy to install Simple Daisychain interconnection - Additional instruments can be added to the system to act as repeaters, for example at the chart table of a sailboat or the flybridge of a powerboat. Thus, as shown in the example on the right, the Mega and Data Repeater instruments repeat the information from the main instruments. Clearly labelled transducer terminals - Robust construction Simrad design 3

4 Speed Instrument Part Numbers System Pack IS12 Speed:S Instrument, Transducer, 2m Power Cable, 0.3m Data Cable, Network Terminator, Instrument Cover Display only (for non-standard transducer installations) IS12 Speed: I Speed Instrument, 2m Power Cable, 0.3m Data Cable, Network Terminator, Instrument Cover Cruise Pack IS12 Cruise:S Speed / Depth / Wind Instruments, transducers, power cable, Instrument Covers, 2 x 0.3m & 1 x 30m Data Cables LIGHT TIMER RESET INFO Spare Transducer IS12TS Plastic through hull Speed, 10M Cable LSP3:SS Replacement paddlewheel impellor The IS12 Speed/Log features a large, clear display with 3 x 40mm high 13 segment digits. It can be fitted as a standalone instrument, or part of an IS12 network. Functions Boat Speed Distance Log Trip Log Race Start timer Water Temperature ºC/ºF Selectable units - Kts, Km/h, MPH Remote controllable Specification Supply Voltage 12v (9-16v) DC Current Consumption Light Off - 40mA Light On - 60mA Speed Range 0-60 Kts, mph, Kmh Max Speed Resolution 0.1 Kts, mph, Kmh Sea Temperature 0-37ºC (32-99ºF) Max units per system 32 Ambient Temp Range -10ºC to +55ºC (14ºF to 140ºF) Dimensions Cruise Pack This unit is available as part of a Cruise Pack together with the Depth and Wind units, plus all necessary transducers and cabling. Transducer The IS12 Speed System is supplied complete with a standard Airmar plastic through hull Speed transducer with aortic sea valve. 20mm (0.78in) 17mm (0.67in) 89mm (3.5in) 50mm (2.0in) 125mm (4.9in) 75mm (3.0in) Rear Transducer Terminals WH White GN Green RD Red BK Black BR Brown 4

5 Depth Instrument Transducer The IS12 Depth System is supplied complete with a standard 200kHz Airmar plastic through hull Depth transducer. For installations on boats with a fishfinder or echosounder running at a similar frequency, the transducer can be disabled. Part Numbers System Pack IS12 Depth:S Instrument, Transducer, 2m Power Cable Instrument Cover Display only (for non-standard transducer installations) IS12 Depth: I Instrument, 2m Power Cable, Instrument Cover LIGHT SHALL DEEP INFO Cruise Pack IS12 Cruise:S Speed / Depth / Wind Instruments, transducers, power cable, Instrument Covers, 2 x 0.3m & 1 x 30m Data Cables The IS12 Depthsounder features a large, clear display with 3 x 40mm high 13 segment digits. It can be fitted as a standalone instrument, or part of an IS12 network. Functions Water Depth Shallow & Deep alarms Keel or Waterline offset Selectable units - Feet / Metres Transducer can be disabled Remote controllable Cruise Pack This unit is available as part of a Cruise Pack together with the Speed/Log and Wind units, plus all necessary transducers and cabling. Spare Transducer IS12TD Plastic through hull Depth, 10M Cable Specification Supply Voltage 12v (9-16v) DC Current Consumption Light Off - 40mA Light On - 60mA Transducer Frequency 200kHz Sounding Range m (2-328ft Max Resolution 0.1m / 1ft Max units per system 32 Ambient Temp Range -10ºC to +55ºC (14ºF to 140ºF) Dimensions Rear Transducer Terminals BK Black +screen BU Blue 20mm (0.78in) 17mm (0.67in) 89mm (3.5in) 50mm (2.0in) 75mm (3.0in) 5

6 Combi Instrument Transducers The IS12 Combi System is supplied complete with standard Airmar plastic through hull Depth (200kHz) and Speed (with aortic sea valve) transducers. For installations on boats with a fishfinder or echosounder running at a similar frequency, the depth transducer can be disabled. Part Numbers System Pack IS12 Combi:S Instrument, Transducers, 2m Power Cable Instrument Cover Display only (for non-standard transducer installations) IS12 Combi: I Instrument, 2m Power Cable, Instrument Cover LIGHT ALARM TIMER UPPER INFO LOWER INFO Spare Transducers IS12TD Plastic through hull Depth, 10M Cable IS12TS Plastic through hull Speed, 10M Cable LSP3:SS Replacement paddlewheel impellor The IS12 Combi offers all the features and functions of the Speed/Log and Depth instruments in one unit with a clear, two line display. It can be fitted as a standalone instrument, or part of an IS12 network. Functions Boat Speed Distance Log Trip Log Race Timer Water Temperature ºC/ºF Water Depth Shallow & Deep alarms Keel or Waterline offset Selectable units Depth transducer can be disabled Remote controllable Specification Supply Voltage 12v (9-16v) DC Current Consumption Light Off - 40mA Light On - 60mA Transducer Frequency 200kHz Sounding Range m (2-327ft) Max Depth Resolution 0.1m / 1ft Speed Range 0-60 Kts, mph, Kmh Max Speed Resolution 0.1 Kts, mph, Kmh Sea Temperature 0-37ºC (32-99ºF) Max units per system 32 Ambient Temp Range -10ºC to +55ºC (14ºF to 140ºF) Dimensions Depth transducer dimensions as Speed skin fitting Rear Transducer Terminals Speed - WH White GN Green RD Red BK Black BR Brown Depth - BK Black +screen BU Blue 20mm (0.78in) 17mm (0.67in) 89mm (3.5in) 50mm (2.0in) 125mm (4.9in) 75mm (3.0in) 6

7 Wind Instrument from the stern, indicating how close the boat is to gybing. If boat speed data is being received, pressing TRUE/APP will switch the digital display between apparent and true wind angle. Transducer Connection As the IS12 wind transducer is an active unit, it does not rely on an instrument display to process the data. Therefore it can be plugged into any spare data port on the network, or directly into the back of the Wind display. Note that the transducer is terminated - no additional termination is required and if adding to an existing system with a Network Terminator fitted, this should be removed. Transducer The IS12 Wind System is supplied complete with a robust, lightweight active masthead transducer. LIGHT WIND ALARM TRUE APP INFO The IS12 Wind is an Analogue wind display featuring a large LCD that can display wind speed and angle. Functions Apparent Wind Angle / Speed True Wind data (if IS12 Speed or Combi present) High Wind alarm Selectable units - Kts, M/S, MPH, BFT Remote controllable Cruise Pack This unit is available as part of a Cruise Pack together with the Speed and Depth units, plus all necessary transducers and cabling. True Wind Data True wind angle and speed data can be displayed if an IS12 Speed Log or Combi instrument is in the system. Digital Close Hauled Display The Wind Angle can be displayed on the digital display by pressing the INFO key - Part Numbers System Pack IS12 Wind:S Instrument, Transducer with mounting bracket, 2m Power Cable, 30m Mast Cable, Instrument Cover Display only (repeater) IS12 Wind: R Instrument, Instrument Cover Cruise Pack IS12 Cruise:S Speed / Depth / Wind Instruments, transducers, power cable, Instrument Cover, 2 x 0.3m & 1 x 30m Data Cables Spare Transducer IS12TW Wind transducer with mounting bracket and 30M cable Specification Supply Voltage 12v (9-16v) DC Current Consumption Light Off - 40mA On - 90mA Wind Speed Range Kts, m/s, Km/h (0-12 BFT) Max Resolution 1º Max units per system 32 Ambient Temp Range -10ºC to +55ºC (14ºF to 140ºF) Dimensions Close hauled, port tack Close hauled, starboard tack 20mm (0.78in) 180mm (7.0in) 43mm (1.7in) 80mm (3.2in) Running, port tack Running, starboard tack 17mm (0.67in) The graphic on the left of the display indicates the direction of the wind. When sailing close hauled, the digits show the wind angle measured from the bow of the boat. When running, the digits show the wind angle measured 440mm (17.3in) 7

8 Compass Instrument Transducer Connection As the IS12 compass transducer is an active unit, it does not rely on an instrument display to process the data. Therefore it can be plugged into any spare data port on the network, or directly into the back of the Compass display. Transducer The IS12 Compass System is supplied complete with a compact fluxgate compass transducer. Part Numbers System Pack IS12 Compass:S Display only (repeater) IS12 Compass: R Instrument, Transducer with 5m cable, 2m Power Cable, Network Terminator, Instrument Cover Instrument, Instrument Cover LIGHT LOCK The IS12 Compass is an Analogue compass display featuring a large LCD that can display magnetic and true heading. Functions Compass lock mode Magnetic and True display Remote controllable Compass Display The IS12 Compass features both analogue and digital display of the current boat heading. When the instrument is switched on, the display will show MAGº (magnetic bearing) or TRUº (true bearing), depending on which setting has been selected in the Calibration menu. After 1 second the display will change to show the heading. Spare Transducer IS12TC Compass transducer with 5m cable Specification Supply Voltage 12v (9-16v) DC Current Consumption Light Off - 40mA On - 90mA Max Resolution 1º Max units per system 32 Ambient Temp Range -10ºC to +55ºC (14ºF to 140ºF) NMEA183 Input The Compass Instrument also has an NMEA183 input to allow the instrument to read Compass info as a stand alone repeater. When used with the IS12 Compass transducer the compass info can be displayed and outputted as NMEA183 on both the Mega and Data instruments. Dimensions Compass Lock Mode 66 mm (2.6 in) 20mm (0.78in) 17mm (0.67in) 94 mm (3.7 in) 46 mm (1.8 in) This allows the current heading to be set as the course to steer. Steer to the required heading and press LOCK. The display will show LOCK for one second, and the needle will swing to point straight ahead. The digital display shows the locked heading and the pointer will show the deviation from the locked heading using the inner scale, which has a maximum deviation of 20º 8

9 Data Instrument NMEA Data The IS Data can output the following NMEA data sentences (NMEA0183) - DBT Depth below transducer DPT Depth below transducer & offset HDG Magnetic Heading inc Deviation & Variation MTW Water Temperature, ºC MWV Wind Speed & Angle VHW Boat Speed & Magnetic Heading NOTE The above NMEA sentences will only be outputted if the relevant master unit is present on the IS12 system, i.e the Wind Transducer must be present for the Wind sentences to be generated. LIGHT The IS12 Data is a multifunction repeater featuring a large, two line display, four customisable Pages and an NMEA output. The Data instrument can repeat all IS12 data available on the network. Functions Multifunction data display Repeats all data available on system Select upper or lower Information 4 Customisable page displays NMEA0183 output Remote controllable Rear Terminals PAGE UPPER INFO LOWER INFO Part Numbers Display IS12 Data: R Specification Supply Voltage Current Consumption NMEA Output Instrument, 2m Power Cable, Instrument Cover, Network Terminator 12v (9-16v) DC Light Off - 40mA Light On - 60mA DBT, DPT, HDG, MTW, MWV, VHW Max units per system 32 Ambient Temp Range -10ºC to +55ºC (14ºF to 140ºF) Dimensions 20mm (0.78in) 17mm (0.67in) 9

10 Mega Instrument NMEA Sentences received/transmitted The Mega has two modes of operation - Mode 1 is for when the Mega is part of an IS12 instrument system and will display IS12 data present on the system, processed nav data via the IS12 network and incoming nav data via NMEA0183. Incoming NMEA instrument data (i.e speed, depth, wind etc) cannot be displayed. Mode 2 is for when the Mega is to be used as a standalone NMEA repeater and will display NMEA0183 instrument and nav data - only the NMEA terminals are used to supply data - the network ports only supply power to the display. No data is received or transmitted to any IS12 units connected to the Mega via the network ports. LIGHT The IS12 Mega is a large digit multifinction repeater which is able to repeat virtually all data available on the IS12 network. Featuring an NMEA output and input, it is also able to repeat incoming navigation and instrument data from an NMEA source. It can form part of an IS12 instrument system, or be used as a stand alone repeater. Functions Multifunction data repeater Repeats all data available on system Large digit display NMEA0183 input NMEA0183 output As a stand alone repeater, or as part of an IS12 network Remote controllable Rear Terminals INFO Displayable data Boat Speed, Log, Trip, Water Temperature, Avg Speed, Max Speed, Race Start Timer, Depth, Shallow Alarm Setting, Deep Alarm Setting, AWA, AWS, TWA, TWS, TWD, VMG, High Wind Alarm Setting, Magnetic Bearing, True Bearing, COG, SOG, BTW, XTE Mode 1 (IS12 Mode) Received Data VTG Course over ground (mag & true), speed over ground RMA Speed & course over ground RMB Cross track error RMC Speed & course over ground BWR Bearing to waypoint (rhumb line) BWC Bearing to waypoint (great circle) GLL Geographic position (Lat/Long) XTE Cross track error Transmitted VHW MTW DBT DPT MWV HDG Data Boat speed & heading (mag & true) Water temperature Water depth Water depth inc. offset Apparent wind angle & speed Heading (mag & true) Mode 2 (NMEA Repeater Mode) Received Data VHW Boat speed & heading (mag & true) MTW Water temperature DPT Water depth inc. offset MWV Apparent & true wind angle & speed HDG Heading (mag & true) VTG Course over ground (mag & true), speed over ground VWR Apparent wind angle & speed RMA Speed & course over ground RMB Cross track error RMC Speed & course over ground BWR Bearing to waypoint (rhumb line) BWC Bearing to waypoint (great circle) GLL Geographic position (Lat/Long) XTE Cross track error Transmitted Data In Mode 2, all NMEA data received is re-transmitted to NMEA Out. 10

11 Remote Control/Alarm Press the button to select the instrument - the display will flash CTRL CTRL Large Digit Display (Speed, Depth, Mega) Two Line Display (Combi, Data) A remote control unit that can operate all IS12 instruments and features a loud alarm repeater and a backlit keypad. The keypad mimics the key layout of all the IS12 instruments. For multi station installations, remote control facility can be disabled on individual instruments. Functions Controls all IS12 instruments Alarm repeater Dash mount or hand held Analogue Display (Wind, Compass) Part Numbers Remote IS12 Remote: F Remote Control/Alarm with 2m cable, dash mount clip Installation The cable can either be routed behind the dash for a fixed mount installation, or exposed for handheld use - Concealed Cable (Fixed Mount) Exposed Cable (Hand Held) Dimensions 17mm (0.67in) 55mm (2.15in) 11

12 Transducers Speed Standard Airmar speed transducer Plastic housing 10m cable Incorporates aortic sea valve Compatible with Simrad Egersund IS15 range of speed transducers 50mm (2.0in) Depth Standard Airmar 200kHz transducer Plastic housing 10m cable Compatible with Simrad Egersund IS15 range of depth transducers 50mm (2.0in) 89mm (3.5in) 125mm (4.9in) 89mm (3.5in) 75mm (3.0in) 75mm (3.0in) Wind A robust, lightweight active masthead transducer with a revolutionary quick release mounting system. Unlike other masthead transducers, the mechanical and electrical connections are separate which dramatically improves reliability and electrical integrity under the demanding conditions masthead transducers experience. Robust Lightweight Lightweight 30m mast cable Easy to install Masthead unit is easy to attach using simple quick-release system - 1 Windvane is locked in place when the counterweight is screwed in. Do not overtighten Counterweight locks under flange Windvane shaft is keyed - ensure it is correctly orientated when fitting Windcups are secured by a grub screw. The hex key supplied for this is also used to tighten the vane counterweight Pull back 2 Lift 180mm (7.0in) 43mm (1.7in) 80mm (3.2in) 440mm (17.3in) 12

13 Order Codes & Accessories Systems Packs IS12 Speed:S IS12 Depth:S IS12 Combi:S IS12 Wind:S Instrument + transducer +2m power cable + 0.3m data cable + cover Instrument + transducer +2m power cable + network terminator + cover Combined two line Speed & Depth Instrument Display + transducers + 2m power cable + cover Instrument + transducer + 30m mast cable + 2m power cable + cover Remote Control IS12 Remote: F Remote Control/Alarm with 5m cable + dash mount clip Transducers IS12 TW IS12 TC Wind transducer with mounting bracket and 30m mast cable Compass transducer Cruise Pack IS12 Cruise:S Separate Speed/Depth/Wind Instruments complete with transducers + power and data cables + covers IS12TS IS12TD Through hull Speed transducer plastic with 10m Cable Through hull Depth transducer plastic with 10m Cable Repeaters IS12 Data:R IS12 Wind:R Two line Instrument Repeater NMEA OUT + network terminator + 5m data cable + cover Analogue Wind Instrument Repeater + 5m data cable + cover NOTE---No power cables are supplied with Repeaters Power Cable SPC2M Data Cables SDC0.3M SDC02M SDC05M SDC10M SDC30M 2m Power Cable 0.3m Data Cable 02m Data Cable 05m Data Cable 10m Data Cable 30m Data Cable Instrument Heads only IS12 Depth:I Depth Instrument + 2m power cable + cover IS12 Speed:I Speed Instrument + 2m power cable + 0.3m data cable + cover Misc Accessories SDJ Three Way Cable Joiner STP Network Terminator PIC Protective instrument cover IS12 Combi:I Combined two line Speed & Depth Instrument Display + 2m power cable + cover 13

14 Suggested Systems The following systems are suggested installations for typical sail and power boat applications, both single and dual station. Additional Data & Mega repeaters can be added up to a maximum of 32 instruments per system. 14

15 FAQs How do I reset the system? Insome cases you may want to reset the instrument to the factory settings. To do this, power the instrument down, press and hold the two outer keys and turn the power on. Note that this does not reset the Distance Log on the Speed and Combi Instruments. What is the point of the Hand Remote disable function? Imagine you have a dual station installation, for example on a flybridge power boat, with a remote control to operate the instruments on the inside steering position. Here, the instruments are often fitted on an overhead console, and/or would be rear mounted, making the remote control necessary. However, the Remote would also control the instruments on the flybridge, which would be confusing and unnecessary - you only want to control those on the inside. So the solution is to disable the remote control facility on the flybridge instruments. How do I disable/re-enable Remote Control? On the instrument in question, enter calibration mode, press or until the display shows CTRL and press. The display will show the current setting - ON for remote control enabled or OFF for remote control disabled. The setting can be changed using the or keys. To set the selected mode, press. The display will then return to the main calibration menu. Press Flybridge Front mounted instruments - no remote control required Remote control disabled Main Steering Station Rear mounted instruments - remote control required. Remote control enabled to exit to the main calibration menu at any point. Any changes will only affect that specific instrument. How do I re-enable Remote Control functionality on a rear mounted instrument? If you accidentally disable the remote control facility on a rear mounted instrument this is a problem. How do you control the instrument - you can t get at the keys, and you ve told the instrument to ignore the Remote Control. If you ve done this, the following procedure will allow Remote Control access to all instruments on the network - With the power to the system off, press and hold the key on the Remote Control while turning the power on. The Remote Control will now be able to access all instruments on the network temporarily (if the system is then switched off and on again without changing anything, the instrument will revert to its previous settings). Select the instrument which has been incorrectly disabled using the Remote Control and re-enable the remote control facility through the calibration menu. Why can t I enable shop mode using the Remote? The remote control can control virtually any function that you can control on the instrument, because when you press a key on the Remote, it sends a data bit down the network which is interpreted by the receiving instrument as a press of the respective key and acts on it. However, what it can t do is tell the difference between a quick press and a long press, and you have to press and hold the key for at least two seconds to enter and exit Shop Mode on the instrument, to stop users accidentally going into Shop Mode when on their boat. Since you can only access Shop Mode through the instrument s own keypad, if you re making a shop display with rear mounted instruments, you should set them up in shop Mode before you fix them to the panel! When do I need to use a terminator? IS12 instruments intercommunicate across a network bus, and like any bus system, it needs to be terminated at both ends. The power cable contains a terminator at one end (which is why you should always use an IS12 power cable). The other end is either terminated by the Wind Transducer (which has one), or by a plug in Terminator supplied with some of the instruments. If the system is split using a three-way joiner, plug the terminator into the last instrument at the end of the longest spur. A system should never include more than two terminators, including the power cable and the wind transducer. When you don t need one - 1) If you only have one instrument in the system, because it has nothing to communicate with. 2) Any system with a Wind instrument - the Wind transducer has a terminator inbuilt. 3) Any system that already has a plug in terminator fitted. Don t fit more than one! When you need one - A system of more than one instrument which includes a cable run of more than 5m and no wind transducer. 15

16 FAQs What happens to the Depth sounder if it crosses turbulence? Normally the depth displayed will be extremely accurate, however there are certain circumstances where the accuracy of the signal can be adversely affected. If the boat is crossing the wake of a large vessel, the turbulence caused by the vessel s passage will create air bubbles which could interfere with the depth sounder signal - Depth pulse is reflected by the air bubbles, not the sea bed What are the pin outs and core colours of an IS12 data cable? Red 12v+ Black 0v Blue Data High Yellow Data Low What do the coloured ends of the IS12 cable plugs mean? Red - Terminated Yellow - Power & Data, Unterminated As this is due to the quality of the water, the depth instrument cannot compensate for this, but will attempt to reacquire an accurate signal. If this occurs, the depth pulse will likely be reflected off the air bubbles rather than the sea bed, in which case the depth will appear to drop rapidly to as little as 0.6m, which may cause the shallow alarm to sound (if it has been set). However, after several seconds the depth instrument will work out that the signals it is receiving are not accurate. Upon loss of signal, the depth instrument will display the following sequence, indicating the depth displayed is not current - 1. The last depth reading will be held for approx 15 secs 2. The display will then flash the last depth reading for approximately one minute 3. The display will then show dashes - LIGHT DEPTH DEPTH SHALL DEEP The display will show dashes until re-acquisition of signal. M INFO Why do the Wind and Compass transducers plug into the network ports, while the Speed and Depth transducers plug into terminals? The Speed and Depth transducers can be described as passive transducers - they merely collect the raw data, but rely on an instrument head to process that data into a useable format. This is why they plug directly into the back of the Speed, Depth or Combi instruments. Wind and Compass transducers are active transducers - they have internal processing circuitry and transmit processed data directly onto the network. They therefore do not rely on a display head to function, and so can be plugged in anywhere on the network What is the maximum length of cable I can have? The total length of cable in the system should be no more than 100m, which should be more than adequate for any applications requiring IS12. What is the maximum number of units I can install in a single system? The manuals state 32 display heads, but the actual figure is 40 nodes. A node is a display head or an active transducer, eg Wind or Compass (see previous question). I want to fit repeaters. What are my options? For a large digit repeater (like the Speed and Depth instruments), choose the Mega (IS12 Mega:R). If you want a multi-line repeater (like the Combi), which can display longer format data like Lat & Long, choose the Data (IS12 Data:R). If you want an analogue Wind or Compass repeater, order an IS12 Wind:R or IS12 Compass:R respectively. You can fit as many of these repeaters as needed (up to the total system maximum stated above). Don t forget to fit a Network Terminator if you need one. 16

17 FAQs / NMEA Info How reliable is the Wind transducer? The IS12 Wind transducer evolved from the very successful Corus and IS15 Wind transducer. We have made it smaller, lighter and easier to fit. The mounting bracket is extremely sturdy, and as the electrical and mechanical connections between the bracket and the wand are separate (unlike the majority of other brands in the market), it doesn t suffer from electrical failure due to fatigue from the wand flexing in high winds. The transducer underwent rigorous environmental and severe vibration tests, tested alongside several other well known brands and the results indicated that IS12 was one of the best. Are the instruments waterproof? The instruments and transducers are classed as weatherproof, meaning they are designed to operate in a marine environment without failing. This means they have to withstand salt spray, regular inundation and temperatures varying between Artic and Tropical without failing or filling with water. All the units were tested thoroughly in an environmental chamber, simulating years of exposure in the real world. However, they are not waterproof in the sense that the Simrad handheld radios are waterproof - they are not warranted against total immersion for a prolonged period of time. NMEA Input/Output NMEA sentences will only be transmitted if the relevant master unit is present on the IS12 system, i.e the Wind Transducer must be present for the Wind sentences to be generated. The following information can be processed by IS12 - IS12 Data Repeater Transmitted DBT Depth below transducer DPT Depth below transducer & offset HDG Magnetic Heading inc Deviation & Variation MTW Water Temperature, ºC MWV Wind Speed & Angle VHW Boat Speed & Magnetic Heading IS12 Mega Repeater Mode 1 (IS12 Mode) Received VTG Course over ground (mag & true), speed over ground RMA Speed & course over ground RMB Cross track error RMC Speed & course over ground BWR Bearing to waypoint (rhumb line) BWC Bearing to waypoint (great circle) GLL Geographic position (Lat/Long) XTE Cross track error Transmitted VHW MTW DBT DPT MWV HDG Boat speed & heading (mag & true) Water temperature Water depth Water depth inc. offset Apparent wind angle & speed Heading (mag & true) Mode 2 (NMEA Repeater Mode) Received VHW Boat speed & heading (mag & true) MTW Water temperature DPT Water depth inc. offset MWV Apparent & true wind angle & speed HDG Heading (mag & true) VTG Course over ground (mag & true), speed over ground VWR Apparent wind angle & speed RMA Speed & course over ground RMB Cross track error RMC Speed & course over ground BWR Bearing to waypoint (rhumb line) BWC Bearing to waypoint (great circle) GLL Geographic position (Lat/Long) XTE Cross track error Transmitted In Mode 2, all NMEA data received is re-transmitted to NMEA Out. 17

18 Calibration Entering Calibration Mode To protect the calibration functions, these are held in a hidden menu. To enter calibration mode, press and hold the LIGHT key - LIGHT for two seconds to change the Shop Mode setting between off and on, and press and hold for another two seconds to confirm and exit to the Calibration menu. The two second press-and-hold sequence is to prevent accidental activation of shop mode by the end user. Hand Remote disable / re-enable On the instrument in question, enter calibration mode, press or until the display shows CTRL and press. UNITS The display will show the current setting - ON for remote control enabled or OFF for remote control disabled. The setting can be changed using the or keys. To set the selected mode, press. The display will then return to the main calibration menu. Press to exit to the main calibration menu at any point. Any changes will only affect that specific instrument. LIGHT Once in calibration mode, pressing the or keys will cycle through the available calibration options (refer to the relevant instruction manual for full details). Press to access the selected calibration function To exit calibration mode at any time, press and hold (LIGHT). Shop Mode All IS12 master instruments include a shop demonstration mode which simulates normal operation of the instrument. Any repeaters in the system will also repeat this simulated data. Backlighting - Network / Local Normally, IS12 is set up so that pressing LIGHT on any instrument will switch on all the lights on the system at the same time (NETWORK lighting). Any changes to the lighting level are also duplicated across the whole system. This can be changed so that backlighting changes are limited to the specific instrument only (LOCAL lighting). Enter calibration mode, press LIGHT CAL and press. until the display shows The large digits will show the current setting - NET for Networked or LOC for Local. The setting can be changed using the or keys. To set the selected backlighting, press. The display will then return to the main calibration menu. Press to exit to the main calibration menu at any point. Any changes will affect this specific instrument only. The backlighting on all the other instruments on the system will continue Networked operation unless they are also set to LOCAL. To change an instrument to Shop Mode, enter the Calibration menu as shown above, and press or to cycle through the available calibration options until Shop is shown. Press and hold for two seconds to select. the display will show Off if Shop Mode is disabled and On if it is activated. Press and hold or 18

19 Fault Finding Symptom Possible Cause Remedy GENERAL (All Instruments) No display on any heads Faulty connection to power Check power connection in the system Fuse has blown Replace fuse and check power supply current No display on one or IS12 data cable loose or broken Check cable linked to more heads in system first faulty unit. Replace if necessary Occasional poor Electrical interference from other Fit interference suppressors performance equipment on boat (see Section 4.4) to equipment responsible SPEED Display shows 00.0 Faulty connection to transducer Check transducer connection while boat is moving Impellor is fouled Clean transducer impellor DEPTH Display shows --- Faulty connection to transducer Check transducer connection Depth over 100m WIND Display shows --- Faulty connection to transducer Check transducer connection DATA Display shows --- Master unit not present in system Data can only repeat data that is available on network Faulty connection to master unit Check data cable links No NMEA Output NMEA connections reversed Check NMEA connections REMOTE Remote cannot select Remote control facility disabled Re-enable remote control instrument on instrument facility on instrument Remote cannot select IS12 data cable loose or broken Check cables any instruments and Terminator not fitted Fit terminator to system double beeps 19