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IS15 General Manual This manual is intended as a reference guide for operating and correctly installing a Simrad IS15 Instrument System using the digital IS15 Combi and IS15 Multi instruments, the analog IS15 Compass instrument and the IS15 Transceiver with speed and depth transducers.
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IS15 General Manual Document revisions Date Written by Checked by Approved by 131299 180100 110200 100300 021100 181200 300301 Document history Rev. A First edition Rev. B More NMEA connections added. Missing information on Wind Speed Damping and True Wind Speed Alarm implemented. Minor corrections in text and editing.
Introduction 1 INTRODUCTION 1.1 The Basic IS15 System A basic stand alone IS15 SDT-1 (tri-data) system is shown in Figure 1-1. It comprises: • IS15 Combi instrument head • IS15 Transceiver • Speed/temperature and Depth transducers. More instrument heads may be added to the system by using single cables in a “daisy chain”.
IS15 General Manual The IS15 Instrument System uses a single cable to carry power and data between the IS15 Transceiver and the instruments. The transfer of power and data is made by a proprietary data link called Roblink. Interface to peripheral equipment is made on NMEA 0183 format, the marine industry standard.
Operation of IS15 Combi 2 OPERATION OF THE IS15 COMBI INSTRUMENT Screen group Screen group reverse button advance button Upper screen section Middle screen Display section Lower screen Screen advance section button/illumination Screen reverse control button Reset button 2.1 General Description The instrument is operated by five buttons.
IS15 General Manual 2.4 Display Screens The Table of Display Screens The display screens of the COMBI instrument are arranged in a ‘table’ as per below. The table consists of a number of screen groups, each group being a logical collection of useful screens. To access the screens you move ‘up’...
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Operation of IS15 Combi Screen Screen 1 Screen 2 Screen 3 Screen 4 Screen 5 Group Depth Depth Trim speed Shallow alarm Group 1 status Boat speed Depth Boat speed Deep alarm Trip Log Sea Temp. Average speed status Max. speed Anchor alarm status Apparent Wind...
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IS15 General Manual Figure 2-2 Access of sub- screen(s) 20220760G...
Operation of IS15 Combi 2.5 Screen Group 1: Depth, Speed, Trip Log There are five screens in this group (all have one or more sub screens). Screen 1 DEPTH BOAT SPEED TRIP LOG • The upper screen section displays ‘DEPTH’, unit (e.g. ‘mtrs’) and the depth value.
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IS15 General Manual Note ! When the sounder is turned off, the display will show OFF instead of the depth reading. Follow the instructions in Figure 2-2 to access the depth sounder ON/OFF screen. With the ON-screen flashing select OFF and return to Screen 1 as per instructions.
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Operation of IS15 Combi To Reset the Trim Speed The Trim Speed may be reset at any time, as per below: • Select either of the two display screens that show Trim Speed. • A short press of the (Reset) button will set the target speed as the current speed.
IS15 General Manual Screen 5 has five sub screens. The first two are for Shallow Alarm ON/OFF and Shallow Alarm Limit settings. The next two are for Deep Alarm ON/OFF and Deep Alarm Limit settings. The last one is for setting the anchor alarm ‘ON’ or ‘OFF’. SHALLOW ALARM AND DEEP ALARM The screen displays the Alarm status, ‘ON’...
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Operation of IS15 Combi Wind damping The displayed wind information has four damping levels (1-4). On power up the last set damping level is selected. To change the damping level follow the procedure in Figure 2-2, page 10 and select the wanted damping level. The higher the figure the more damping.
IS15 General Manual Notes ! 1. The Wind Direction is calculated from available heading data. The wind direction given is the effective wind direction over the water. The display will be most accurate after a period on one heading, however, it will respond rapidly to course changes.
Operation of IS15 Combi Screen 2 VELOCITY MADE GOOD (VMG) TO WIND TRIM SPEED APPARENT WIND ANGLE • The upper screen section displays ‘VMG’ as on Screen 1. • The middle screen section displays ‘TRIM SPD’, the trim speed value and the unit (e.g. ‘kts’). Trim Speed is the difference in speed between the present boat speed and the target speed.
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IS15 General Manual • The middle screen section displays ‘BRNG WP’, the Bearing to the waypoint in degrees and the unit (‘T’rue or ‘M’agnetic). See note on page 19. • The lower screen section displays ‘XTE’, the Cross Track Error (XTE) value and the boat position relative to the track line.
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Operation of IS15 Combi • The lower screen section displays ‘LOCAL’ time in hours:minutes:seconds. The Local Time is only given if a suitable GPS data input is available. The GPS system runs on Universal Co-ordinated Time (UTC), which is the same as Greenwich Mean Time (GMT).
IS15 General Manual Screen 5 POSITION • The upper screen section displays the ‘LATITUDE’ (N or S) in degrees and minutes with two or three decimal points. • The lower screen section displays the ‘LONGITUDE’ (E or W) in degrees and minutes with two or three decimal points. Screen 5 has no sub-screen.
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Operation of IS15 Combi • The lower screen section displays ‘LOCAL’ (time) and hours:minutes:seconds. Screen 2 has the same two sub-screens as screen 1. Notes ! 1. Two Race Timers are available; 10-5 minutes or 6-3 minutes. They are selectable in a sub-screen to the Race timer main screens.
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IS15 General Manual To Freeze the Race Timer The Race Timer may be frozen and restarted at any time that it is running, before or after the start of a race, as below: 1. Apply a short press on the RESET button to freeze the Race Timer.
Operation of IS15 Combi To Reset the Passage Time to Zero The passage time may be reset at any time, as per below: 1. Select the Log, Trip Log and Passage Time screen (3). 2. Press the RESET button and hold for 2 seconds. The Passage Time, Average Speed and Max Speed will be reset.
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IS15 General Manual ‘ALARM SYSTEM XX’ = System failure (Contact your Simrad dealer) ‘COMPASS CALIBRATION FAILED’ = The calibration failed and/or a new calibration is required. 20220760G...
Operation of IS15 Multi 3 OPERATION OF IS15 MULTI INSTRUMENT Screen group Screen group reverse button advance button Display Screen reverse Screen advance button button/illumination control Reset button 3.1 General Description The instrument is operated by the five buttons. By pressing one of the arrow buttons you can move up, down, or sideways through the selection of display screens that are available.
IS15 General Manual 3.4 Display Screens The Table of Display Screens The data screens of the MULTI instrument are arranged in a ‘table’ as per below. The table consists of a number of screen groups, each group being a logical collection of useful screens. To access the screens you move ‘up’...
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Operation of IS15 Multi Notes ! 1. If data is not available then “---” will be displayed in place of data on the appropriate screen(s). 2. Some of the main screens have (concealed) sub-screens attached for added information and user settings. Sub-screens (- setup -) The diagram on the next page shows the sub-screen matrix, how to select a sub-screen and how to change a setting.
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IS15 General Manual Figure 3-2 Access of sub-screen(s) 20220760G...
Operation of IS15 Multi 3.5 Screen Group 1: Depth There are five screens in this group: Screen 1 DEPTH • The upper screen section displays ‘DEPTH’ and the data unit, e.g. ‘MTRS’. An arrow indicates a rising (↑) or falling (↓) bottom.
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IS15 General Manual • The lower screen section displays the sea temperature reading. Screen 2 has no sub-screens. Screen 3 SHALLOW ALARM • The upper screen section displays ‘SHAL’, the depth that the Shallow Alarm is set to and the depth unit, such as ‘M’ (metres).
Operation of IS15 Multi Screen 5 ANCHOR ALARM STATUS • The upper screen section displays ‘ANCH ALRM’. • The lower screen section displays the Anchor Alarm status; ‘ON’ or ‘OFF’. Screen 5 has a sub screen for setting the anchor alarm ‘ON’ or ‘OFF’.
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IS15 General Manual • The lower screen section displays the trim speed reading. The Trim Speed is the difference in speed between the present boat speed and the target speed. At turn on the Trim Speed will only be displayed if it has been reset (see below), until that time it will show ‘---’.
Operation of IS15 Multi The Average Speed is calculated as the distance covered by the boat since power up or when the passage time was last reset, divided by the passage time. Resets at Passage Time reset and Trip log reset. (see paragraph 3.11). Screen 6 MAXIMUM SPEED •...
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IS15 General Manual • The lower screen section displays the True Wind Angle reading. Screen 3 has a sub-screen for setting the wind damping. Refer to screen 4. Screen 4 TRUE WIND SPEED • The upper screen section displays ‘TRUE WIND’ and the unit, e.g.
Operation of IS15 Multi 3.8 Screen Group 4: Nav 1 There are six screens in this group. Only screen 3 has a sub- screen. Screen 1 WAYPOINT ID • The upper screen section displays the destination waypoint I.D. • The lower screen section is empty. Screen 2 CROSS TRACK ERROR •...
IS15 General Manual Screen 4 DISTANCE TO WAYPOINT • The upper screen section displays ‘DIST TO WP’ and the unit, e.g. ‘NM’. • The lower screen section displays the reading of the distance to the waypoint. Screen 5 TIME TO GO •...
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Operation of IS15 Multi MAG. VARIATION The IS15 instruments automatically read the Magnetic Variation compensation message from connected GPS. compensation is presented on the screen. You are not allowed to adjust the compensation from the GPS. If you press the button and hold for 2 seconds the screen just flashes AUTO and returns to show the compensation from the GPS.
IS15 General Manual 3.10 Screen Group 6: Race There are three screens in this group: Screen 1 RACE TIME • The upper screen section displays ‘RACE TIME’. • The lower screen section normally displays the Race Timer start time. See Note 1 below. Screen 1 has a sub-screen for selecting Race Timer (5-10 min.
Operation of IS15 Multi To Freeze the Race Timer See page 22. To Reset the Race Timer and Race Log The Race Timer may be stopped and reset at any time that it is running, before or after the start of a race, as below: 1.
IS15 General Manual The Trip Log can be reset, but is not lost when the system is turned off. To Reset the Trip Log to Zero The Trip Log may be reset together with the Passage Time, Average speed and Max. Speed at any time, as below: 1.
Operation of IS15 Compass 4 OPERATION OF IS15 COMPASS INSTRUMENT Pointer Scale LCD Arrow Legend Arrow Right button Left button LCD display 4.1 General Description The display is divided into two sections, the scale with pointer, and the LCD. Both are controlled by the two buttons. The Scale The scale indicates heading in degrees and the four main bearings N, S, E, W.
IS15 General Manual The Buttons A given press on any of the two buttons will change the mode from ‘Heading’ to ‘Locked Course’ mode and vice versa. The left button is used to enter set-up and installation screens. The right button sets the lighting level. When in a set-up or installation screen both buttons are used to change settings.
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Operation of IS15 Compass Magnetic variation [Var] This is a sub-screen to the Heading display. The IS15 instruments automatically read the Magnetic Variation compensation message from connected GPS. compensation is presented on the screen. You are not allowed to adjust the compensation from the GPS. If you press the button and hold for 2 seconds the screen just flashes AUtO and returns to show VAr.
IS15 General Manual If you want to change the set course apply short presses on the button to set the next course to steer to port or starboard respectively. Press and hold the button for 2 seconds to enter the new setting.
Technical Specifications 5 TECHNICAL SPECIFICATIONS See page 50 for NMEA information. 5.1 IS15 Combi and IS15 Multi Speed Functions 0 to 99.9 Knots Speed Display Speed Units/Resolution Knots, mph or km/h / 0.1 speed units Speed Damping 3 damping levels + 0=off Average Speed From Power On or passage time reset Maximum speed...
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IS15 General Manual True and Apparent Wind Speed Functions Wind Speed Units Knots, m/s, km/h or Beaufort Scale Wind Speed Display 0 to 99.9 Wind Speed Units Wind Speed Resolution 0.1 Wind Speed Units Wind Speed Damping Linked to wind angle damping True Wind Speed Alarms On/Off Control, one adjustable alarm limit Velocity Made Good (VMG) Functions...
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Technical Specifications Waypoint Functions Waypoint Identity 13 Alpha-Numeric characters Waypoint Bearings 0 to 359° (True or Magnetic) Waypoint Bearing 1° Resolution Waypoint Distance 0 to 999 Log Units Waypoint Distance 1, 0.1 or 0.01 Log Units as appropriate (4 digits) Resolution Navigation Functions Cross Track Error (XTE)
IS15 General Manual 5.2 IS15 Compass Heading Functions Heading Display (Digital) 0 to 359° Heading Resolution 1° Heading Display (Analog) 0 to 359,9° Heading Resolution 1/6° Heading Reference True or Magnetic North Heading Lock Direction to steer on digital display. Course to Steer Settable on digital display Direction to steer on digital display.
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Technical Specifications • Boat speed always reads 0.0 at zero speed. (V1R2 may show - - - at turn on and a ‘residual’ speed value when slowing down to zero speed). • Improved boat speed and wind speed damping. • Improved damping of heading displays. •...
Technical Specifications 5.4 Display head and Transceiver dimensions 30 mm [1,18"] 85 mm Dia [3,35"]. 9 mm (Panel cut-out) [0,35"] 21 mm 110 mm [4,33"] 32 mm [0,83"] [1,26"] Figure 5-1 IS15 Display Head Dimensions Figure 5-2 IS15 Transceiver Dimensions 20220760F...
IS15 General Manual 5.5 Transducer dimensions Ø 75 mm Ø 75 mm 14 mm 2"-12 UN 2"-12 UN threads threads 89 mm 89 mm Ø 51 mm Ø 51 mm 5 mm 5 mm Ø 75 mm Ø 75 mm Figure 5-4 Figure 5-3 P17 Depth Transducer...
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Technical Specifications Ø79 mm Ø78 mm 35 mm 35 mm 2"-20 UN 2"-12 UN threads threads 90 mm 90 mm Ø 51 mm flange nut Ø 51 mm isolation 11 mm washer isolation bushing 14 mm 5 mm 6 mm Ø...
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IS15 General Manual M22 x 1.5 threads 127 mm Ø 38 mm 29 mm Ø 62 mm 79 mm Figure 5-10 SS505 Depth Transducer Ø79 mm 2"-12 UN 133 mm threads 102 mm Ø 51 mm 7 mm 27 mm 140 mm Figure 5-12 P52 Tri-ducer Figure 5-11 B44V Tri-ducer...
Installation 6 INSTALLATION 6.1 General This section provides detailed information required to successfully install an IS15 Instrument System utilising the IS15 Combi, IS15 Multi and IS15 Compass instruments. It also describes the interconnection with an IS15 Wind System and the connection to peripheral equipment.
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IS15 General Manual 2. Carefully position the self-adhesive template provided on the surface where the display head is to be mounted. 3. Allow sufficient space for the protection cover as shown on the template when instruments are installed adjacent to each other.
Installation 6.3 System layout Basic SDT-1 System IS15 Combi SIMRAD NMEA from GPS/Chart plotter 10 m (33') Denotes Roblink cable with connector IS15 Transceiver Optional extra Supply 10,8-15,6VDC Circuit breaker 10 m (33') 10 m (33') Depth Speed/temp transducer transducer Figure 6-3 IS15 Combi (Tri-data) System layout The SDT-1 system is capable of displaying Speed, Depth and Temperature on a single IS15 Combi instrument head.
IS15 General Manual SDT-2 System IS15 Multi IS15 Multi SIMRAD SIMRAD 0.3m (1') NMEA input from GPS/Chart plotter 10 m (33') Output on NMEA to autopilot and Chart plotter Denotes Roblink IS15 cable with connector Transceiver Supply 10,8-15,6VDC Optional extra Circuit breaker 10 m (33') 10 m (33')
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Installation Mounting Guidelines Depth Transducers • The main source of the vessel generated noise is the propeller. • The deeper the transducer projects the lower the risk of aerated water. • On displacement hulls place the transducer 1/3 aft along waterline.
IS15 General Manual 6.6 Cabling Figure 6-5 Interconnection – Principle diagram Choosing the Cable Routes After you have decided on the system and mounted the components of the IS15 System, the next step is to route the cables between the various parts of the system and to the power supply.
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Installation INSTR. #1 INSTR. #7 SIMRAD SIMRAD 30m (99') Max 7 instrument heads IS15 Total length of all Roblink cables, max. 30 m (99') TRANSCEIVER INSTR. #1 INSTR. #7 SIMRAD SIMRAD SIMRAD SIMRAD 30m (99') Max 7 instrument heads IS15 Total length of all Roblink TRANSCEIVER cables, max.
IS15 General Manual Securing the connectors It is recommended that for extra security you secure the connectors with the enclosed self-tapping screws. Figure 6-7 Securing connectors to the instrument Make sure that all empty sockets have the protection plugs inserted. Coat the connectors with silicone grease or petroleum jelly.
Installation Interconnections Connection between the instrument head and the IS15 Transceiver is made by the 10 m (33’) Roblink cable supplied with the Transceiver. Connect the Roblink cable between one of the three Roblink sockets on the IS15 Transceiver and the PWR-ROBLINK socket (1) on the display head.
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IS15 General Manual Connecting a Simrad Robertson “X” series autopilot NMEA Out This connection will provide speed and depth input to the autopilot. The connection is made to the J3xx Junction Unit Main Board, Terminal RX1+ and RX1-. If an IS15 Wind Transducer is connected to the system, wind information will also be transferred to the autopilot.
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Installation Connecting a Simrad XX32/XX40/XX50 series GPS Plotter NMEA out This will provide the chart plotter with speed, depth, temperature and wind information. NMEA in This will provide navigational data to the instrument system. Figure 6-12 Simrad XX32/XX40/XX50 series connection Note ! Even if the NMEA input is automatically polarized on the IS15 instruments, it may be necessary to interchange the wires from...
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IS15 General Manual Figure 6-13 Connection to Figure 6-14 Connection to AP12H/AP14H Autopilot AP12R/AP14R Autopilot RFC35N (NMEA) and RFC35R (Rate) Compass connection Figure 6-15 Connection to RFC35N and RFC35R Compasses Note ! Read the wiring instructions that comes with the RFC35R Rate Compass.
Installation 6.9 IS15 Transceiver This unit contains the depth and the speed/temperature electronics. The power supply (battery) and the transducers are connected to the unit. The unit has three Roblink connectors for instrument heads and wind transducer. Speed/temp transducer and depth transducer are hard-wired to plug-in screw terminals on the PCB (pwr terminal is fixed).
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IS15 General Manual Figure 6-17 Depth Transducer connections Figure 6-18 Speed/Temp Transducer connections Power connection There is no power cable supplied for the Transceiver. Use a cable with minimum wire gauge of 1.5mm (AWG14). The outer diameter should be 10 mm (0,4”) to ensure a tight fit through the gasket.
Installation 6.10 IS15 Instruments as NMEA repeaters Figure 6-20, Figure 6-21 and Figure 6-22 are examples of how IS15 instruments can be used as NMEA repeaters. Depth, speed and temperature can be displayed when connected to a Simrad CEXX Chart plotter/Echo sounder or CAXX Multifunction radar.
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IS15 General Manual Figure 6-19 IS15 Instrument system – Cabling diagram 20220760G...
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Installation Wind SIMRAD SIMRAD SIMRAD Transducer (Special) Roblink Power Cable. 30m (100') 0.3m (1') 0.3m (1') 10m (33') 2,5m (8') 12V Supply Junction box (mast foot) Simrad CE-Type Autopilot Chart Plotter/ J3000X Echo Sounder Junction or CA Multi- Unit function radar Roblink cable with connector Optional extra Only when using J300X...
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IS15 General Manual SIMRAD SIMRAD SIMRAD SIMRAD Wind Transducer 30m (100'). Junction box (mast foot) 0.3m (1'). 0.3m (1'). 0.3m (1'). 0.3m (1'). 10m (33'). 5m (16'). 12V Supply Simrad CE-Type Chart Plotter/ Echo Sounder or CA Multi- function radar IS15 Power Supply Autopilot J3000X Junction Unit Roblink cable with connector...
Setting-Up 7 SETTING-UP 7.1 First time turn on Note ! Always turn on all NMEA “listeners” and “talkers” connected to the system before the first time you turn on the IS15 system. This includes turn on after a COMMUNICATION RESET or a MASTER RESET.
IS15 General Manual Note ! When an instrument is replaced it is important that a Master Reset has been made on the new one before it is connected to the system. Refer to section 9.5 Local Master Reset on page 100. 7.2 Installation and Calibration Menu After installation, certain functions in the system should be calibrated to take into account the physical position and type of...
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Setting-Up 1. Press the button and hold for 10 seconds to access the Installation Menu. 2. Apply a short press on the button to select a group of screens in the Installation Menu. 3. Again press and hold the button for 2 seconds to access the screens in the selected group.
IS15 General Manual Use the above procedure and flowchart as reference when accessing installation screens and adjusting the settings. 7.3 General Screen Group The sequence for IS15 Combi and IS15 Multi is identical but the screens are slightly different. In the following both screens are presented.
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Setting-Up Screen 3 SHOP MODE The instrument has a demonstration mode that can be activated by selecting ‘Shop Mode’ On. This function is very useful for dealers when they want to demonstrate the IS15 system or when it is put on display on a show. The Shop Mode is turned off when power is turned off.
IS15 General Manual Screen 7 MASTER RESET When a MASTER RESET is performed on one of the instruments in a system it becomes system wide and all instruments are reset to default values. Do not perform a Master Reset unintentionally, because Note ! you will default settings and calibration values.
Setting-Up Screen 3 DEPTH SOURCE Test screen on IS15 Combi only Tells you from where IS15 gets depth information. NMEA = External source Rlink = IS15 Transducer 7.5 Boat Speed Screen Group Screen 1 SPEED UNIT One of the following speed units may be selected: •...
IS15 General Manual Screen 4 MANUAL LOG CALIBRATION This method is used to calibrate the log while sailing a known distance. 1. Press the button when starting to sail the known distance. The display flashes ‘Run(ning)’ and counts up the sailed distance.
Setting-Up 7.7 Wind Screen Group Screen 1 WIND SPD UNIT The following apparent and true wind speed units may be selected: Knots, Metres Per Second, Kilometres Per Hour or Beaufort. • IS15 Combi: KTS, M/S, KMH, BEU. • IS15 Multi: KTS, M/S, KMH, BEU Screen 2 WIND OFFSET, AUTOMATIC OFFSET The IS15 instrument system can be automatically corrected for...
IS15 General Manual Screen 4 WIND SOURCE Test screen on IS15 Combi only Tells you from where IS15 gets wind information. NMEA = External source Rlink = IS15 Wind Transducer (MHU) 7.8 Navigation Screen Group Screen 1 DISTANCE UNIT The following distance units may be selected: Nautical miles (NM), Kilometres (KM).
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Setting-Up 2. Press the button and hold for 2 seconds. The LCD flashes ‘CAL’. 3. When the calibration is completed, (after having made approximately 1 ¼ turns), it will be confirmed by the display reading ‘Done’. Screen 2 HDG OFFSET Do not use the Heading Offset procedure when the system is Note ! connected to a Simrad autopilot.
IS15 General Manual 7.10 Leaving the Installation Menu Return to the main display from the Installation Menu as follows: 1. From any Installation Menu screen, press the button and hold for 2 seconds to return to the group screen. 2. From any group screen press the button and hold for 2 seconds to leave the Installation Menu and return to the main screen.
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Setting-Up Installation and Calibration Menu The installation menu is arranged as follows: Screen Display Screen 1 Screen 2 Screen 3 Screen 4 Screen 5 Digital Illumination Compass Heading Offset Heading T/M Shop mode bank Calibration (on/off) bAn.1 CAL.C OFFS SHOP Screen Display Screen 6...
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IS15 General Manual Note ! You can also have individual lighting on all instruments. Then the illumination bank setting must be 0. Screen 2 COMPASS CALIBRATION [CAL.C] This function will activate the automatic compass calibration procedure. Do not use the calibration procedure when the IS15 instruments Note ! are connected to a Simrad autopilot.
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Setting-Up Screen 4 MAGNETIC OR TRUE HEADING [HdG] The display heading (and bearings) may be set to reference either Magnetic (MAG) or True (trUE) North. If True North is selected magnetic variation must be available from a GPS receiver or entered manually. See page 43. Screen 5 SHOP MODE [SHOP] Like the other IS15 instruments the IS15 Compass has a Shop...
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IS15 General Manual Screen 8 COMMUNICATION RESET [C.rES] Allows you to reset the system communication (Roblink) in the event anomalies are observed on one or more instruments. This reset will not default the calibration or settings. Press the button and hold for 2 seconds. The LCD display shows ‘P.OFF’.
Fault Finding 8 FAULT FINDING This chart assumes that the instrument is part of an IS15 instrument system including an IS15 Transceiver, or an IS15 Power Supply or Expander. If it is connected to another equipment as a NMEA repeater, then perform the equivalent checks on that equipment.
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IS15 General Manual Condition Probable Cause Action One or more No data is reaching Check the signal wiring to the affected instrument(s) always the affected instrument(s). show ‘----’, with the instrument(s). Check Roblink data by entering the pointer of analog Roblink test menu on a Combi instrument.
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Fault Finding Condition Probable Cause Action The Wind Speed has The wind transducer Check the transducer location. always been too low may be poorly sited. Contact your dealer. or too high. The Wind Angle The wind transducer is Check the wind transducer’s connections displays are not connected to the to the IS15 Transceiver and to the Junction...
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IS15 General Manual Speed and Temperature Display Faults Condition Probable Cause Action The Boat Speed The speed transducer Check the speed transducer’s connections display always is not connected to the to the IS15 Transceiver. shows “----“ and/or IS15 Transceiver Check that the speed transducer cable is Temperature show –...
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Fault Finding Condition Probable Cause Action The Boat Speed is Dirty paddle wheel or Clean the paddle wheel and / or the hull as too low, when it was hull. required. previously correct. Damaged paddle Check that paddle wheel wheel or transducer transducer is not damaged, and that there body.
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IS15 General Manual Heading and Autopilot Display Faults Condition Probable Cause Action There are no The required data is If it is a non Simrad compass, check the Heading or Wind not being received NMEA output compass specification Direction displays. from the Fluxgate against the IS15 input specification.
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Fault Finding Condition Probable Cause Action Some or all The compass hasn’t Recalibrate the compass. Headings are been calibrated. incorrect, by Magnetic or ferrous Check for possible objects that may affect different amounts. objects have been the compass, e.g., a portable radio. If the Note : moved into or away change is permanent then recalibrate the...
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IS15 General Manual Condition Probable Cause Action There are no The required data is Check that GPS/Plotter Waypoint Data not available from the destination Waypoint. displays, even GPS/Plotter. Make other checks as for ‘no navigation though the Course displays’, above. Over Ground display is working.
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Fault Finding GENERAL DATA DETECT Roblink Sync. OK Boat speed (Water) OK Depth OK GPS Position data OK Compass heading OK Navigation data OK Wind Speed & Angle OK Waypoint/Route navigation active All displayed items will start counting at 136. If data are OK they will count up and stop at 255.
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IS15 General Manual The fourth display tells you if an instrument is sending NMEA data to the Roblink. Send Displays ‘-Tx’ if the particular instrument is sending the particular message on Roblink. Only the instrument receiving data from NMEA and sending it to the Roblink displays ‘-Tx’. Actions to Roblink test results: 1.
Maintenance 9 MAINTENANCE 9.1 General Maintenance Do not use any abrasives, chemical cleaners, petrol or diesel to clean Caution ! the units. The instrument heads will require no maintenance apart from occasional cleaning. Use fresh water and a mild soap solution (not a detergent).
IS15 General Manual 9.4 Return for Service Please ensure that an instrument that is believed to be faulty is correctly installed, the cabling is in good condition and correct, that all connections are secure, and that a correct supply is present at the Roblink/power connector.
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