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Summary of Contents for Simrad IS12
- Page 1 A L W A Y S T H E F O R E F R O N T T E C H N O L O G Y...
- Page 3 Instruction Manual Simrad IS12 Combi Instrument...
- Page 4 No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form, electronic or otherwise without prior permission from Simrad Ltd. No liability can be accepted for any inaccuracies or omissions in the publication, although every care has been taken to make it as com- plete and accurate as possible.
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Page 5: Table Of Contents
1.1 Introduction ........6 1.2 IS12 Network System ....... . 7 OPERATION 2.1 Depth Display . -
Page 6: Introduction
IS12 Combi 1 GENERAL 1.1 Introduction The Simrad IS12 System is a flexible modular series of instru- ments that offer 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, the IS12 Combi will offer superb performance. -
Page 7: Is12 Network System
Instruction Manual 1.2 IS12 Network System 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 sin- gle cable (Fig 1.2) -... -
Page 8: Operation
IS12 Combi 2 OPERATION 2.1 Depth Display When the IS12 Combi is switched on, the current water depth is shown on the top line of the display (Fig 2.1) - COMBI DEPTH SPEED MPH KNM HKts ALARM UPPER LOWER LIGHT... - Page 9 Instruction Manual for the shallow alarm and twice for the deep alarm (Fig 2.2) - ALARM UPPER LOWER LIGHT TIMER INFO INFO COMBI DEEP SHALL DEPTH SPEED MPH KNM HKts ALARM UPPER LOWER LIGHT TIMER INFO INFO COMBI DEEP SHALL DEPTH Fig 2.2 - Depth Alarms The display shows the current alarm setting (default is OFF).
- Page 10 IS12 Combi To adjust the alarm settings, select the shallow or deep alarm using the UPPER INFO key and press ALARM TIMER. The display shows four icons ( ) on the bottom line (Fig 2.3) - ALARM UPPER LOWER LIGHT...
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Page 11: Speed Display
The deep alarm cannot be set lower than the shallow alarm, and the shallow alarm cannot be set higher than then deep alarm. 2.3 Speed Display When the IS12 Combi is switched on, the current boat speed is shown on the bottom line of the display (Fig 2.4) - SPEED... -
Page 12: Trip Log
IS12 Combi 2.5 Trip Log A resettable Trip Log is available by pressing the LOWER INFO key twice. The Trip Log shows the distance travelled since it was last reset (Fig 2.6) - TRIP HKts ALARM UPPER LOWER LIGHT TIMER... -
Page 13: Average Speed
Instruction Manual 2.7 Average Speed The Average Speed (Fig 2.8) is calculated using the mean boat speed taken over the time that the Combi has been switched on. Press LOWER INFO once from the Water Temperature dis- play, or press LOWER INFOx4 from the default display to show Average Speed. -
Page 14: Race Timer
IS12 Combi 2.9 Race Timer The Timer function acts both as a race start countdown timer and an elapsed time display. To access the Timer, press LOWER INFO six times from the default display (Fig 2.10) - ALARM UPPER LOWER... -
Page 15: Backlighting
Instruction Manual 2.10 Backlighting The backlighting illuminates the display and the keys, with five levels of brightness. To switch the backlighting on, press the LIGHT key. The dis- play will illuminate and the large digits will show the current lighting level (Fig 2.11) - COMBI ALARM UPPER... -
Page 16: Remote Control / Alarm Option
See Section 3.9 regarding enabling and disabling remote control functionality for this instrument. As this unit is intended to control all instruments in the IS12 range, the keypad is a generic design. Fig 2.12 indicates the... -
Page 17: Calibration
Instruction Manual 3 CALIBRATION To protect the calibration functions, these are held in a hidden menu. To enter calibration mode, press and hold the LIGHT key (Fig 3.1) - ALARM UPPER LOWER LIGHT TIMER INFO INFO COMBI ALARM UPPER LOWER LIGHT TIMER INFO... -
Page 18: Selecting Units
IS12 Combi 3.1 Selecting Units Enter calibration mode and press (LOWER INFO). The depth units can then be selected (Metres, Feet) by pressing the keys. Press to set the selected depth units. The speed units can then be selected (Knots, Kmh, mph) using keys (Fig 3.2) -... -
Page 19: Damping
Instruction Manual 3.2 Damping The Damping function adjusts the update rate of the display. A damping level of 0 (minimum) will cause the display to update rapidly, while a damping level of 4 (maximum) will result in a more stable display, but one that is less frequently updated. Enter calibration mode, press once (the display will show CAL DPG) and press... -
Page 20: Depth Offset
The IS12 Depth Sounder allows a keel or waterline offset to be entered, so that the displayed depth will more accurately reflect the depth of water available beneath the boat. -
Page 21: Keel Offset
Instruction Manual The current offset will be displayed - default value 0.0 (Fig 3.5) - COMBI ALARM UPPER LOWER LIGHT TIMER INFO INFO Fig 3.5 - Setting Depth Offset 3.3.1 Keel Offset Since entering a keel offset is reducing the displayed depth, this is entered using the key - which will adjust the offset in 0.1m /0.1ft decrements. -
Page 22: Switching Depth Transducer Off / On
IS12 Combi 3.4 Switching Depth Transducer Off / On If the boat is also fitted with a fishfinder running at a different frequency, there may be some interference between the two depth transducers. In this case, the transducer can be switched off. -
Page 23: Speed Sensor Calibration
Instruction Manual 3.5 Speed Sensor Calibration When the IS12 Combi is first installed, it is important that the speed sensor is calibrated properly, as different boats with dif- ferent hull shapes and characteristics can give a slightly differ- ent speed reading to the actual speed through the water. -
Page 24: Percentage Correction
IS12 Combi 3.5.1 Percentage Correction This method can be used if the displayed speed and the actual speed vary by a certain ratio. For example - Actual Boat Speed = 6kts Displayed Boat Speed = 5kts Actual Error = x 100 = 120%... -
Page 25: Measured Mile
Instruction Manual 3.5.2 “Measured Mile” This procedure automatically calibrates the speed sensor by measuring the average time to cover a known distance and comparing this with the time it should have taken to cover this distance at the measured boat speed (Fig 3.9) - Measured Boat Speed is compared to the Calculated Boat Speed over a measured distance... - Page 26 IS12 Combi When the boat reaches the start of the measured distance, press key - the display will show “run” (Fig 3.11) - Fig 3.11 - During Measured Distance Run Press the key to cancel the calibration. At the end of the measured distance run, press .
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Page 27: Setting Race Countdown Time
Instruction Manual 3.6 Setting Countdown Time Although the countdown timer is set at 6 minutes, which is the recognised countdown time as specified in the CHS2000 racing regulations, this can be changed to any value (in 1 min incre- ments) between 1 minute and 9min 59secs (max). Enter calibration mode, press x 5 (the display will show CAL C’DN) and press... -
Page 28: Local & Network Backlighting
(Network), or so that any changes are limited to this specific instrument only (Local). NOTE The IS12 instruments are set to Networked lighting as default. Enter calibration mode, press x 6 (the display will show CAL LIGHT) and press (LOWER INFO). -
Page 29: Shop Mode
This is a simulation mode for in-store demonstration - do not use. 3.9 Disable Remote Control On some installations which includes the IS12 Remote Control, it may be more convenient to limit remote control access to only some instruments on the network - for example on a fly-... -
Page 30: Installation
IS12 Combi 4 INSTALLATION 4.1 Instrument Head Installation All IS12 instrument heads are a standard 110 x 110mm (4.3 x 4.3in) size, and can be mounted either from the front or the rear. 4.1.1 Front Mounting Fig 4.1 - Front Mounting 65mm (2.5in) - Page 31 Instruction Manual The instrument is 110mm (4.33 in) square, but a distance of at least 6mm (0.25 in) should be allowed between adjacent units for the protective instrument cover supplied. NOTE Long term exposure to direct sunlight can damage the liquid crystal display if left unprotected when not in use - always use the instrument cover supplied.
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Page 32: Rear Mounting
IS12 Combi 4.1.2 Rear Mounting When the instrument is rear mounted, only the display can be seen - the main body of the instrument, including the keypad is hidden behind the panel. This is a more elegant method of installation, but does require precise cutting of the apertures into the bulkhead or dashboard. -
Page 33: Transducer Installation
Instruction Manual 4.2 Transducer Installation The IS12 Combi is supplied with 50mm (2in) diameter plastic speed and depth sensors, or transducers. The speed unit includes an Aortic Sea Valve, which allows the transducer to be removed for cleaning without seawater flooding the bilges through the hull fitting. -
Page 34: Cutting And Sealing The Holes
IS12 Combi 4.2.2 Cutting and Sealing the Holes NOTE For the depth reading to be accurate, the depth transducer must be as near vertical as possible. If the hull is angled in the selected position, it may be necessary to use a fairing block cut Fairing block to the correct angle so that the transducer is vertical when fit-... -
Page 35: Installing The Depth Transducer
Instruction Manual The hole must then be sealed - this is especially important with GRP or sandwich foam hulled boats to avoid osmosis damage. Ensure the hole and surrounding area is clean and dry - a hot air gun is a useful tool to use here. Apply a coating of fibreglass resin to the inside edge of the hole, making sure all the raw edges are thoroughly sealed. -
Page 36: Installing The Speed Transducer
IS12 Combi When the sealant is set, recheck the seal integrity around the transducer. The outside face of the transducer can be carefully painted with antifouling to protect it, but check the instructions of the antifouling to ensure that it is not solvent based, as this could damage the transducer. - Page 37 Instruction Manual NOTE The Skin Fitting is marked with an arrow on the flange which should be aligned so that it is pointing dead ahead, otherwise the transducer will not give an accurate speed reading. Apply a generous amount of silicone sealant to the inside of the Skin Fitting flange, then offer it up to the hole from the under- neath of the boat (Fig 4.13A).
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Page 38: Withdrawing The Speed Transducer
IS12 Combi The outside face of the Paddlewheel Assembly can be carefully painted with antifouling to protect it, but it should be removed if the boat is to be left standing in the water for long periods. NOTE Replace the Paddlewheel Assembly with the bung when returning the boat to the water to prevent the paddlewheel impellor being damaged. -
Page 39: Electrical Installation
Network Bus Ports Flattened edge Fig 4.16 - Rear Connections The first link in the IS12 system is the power cable, which should be connected to the boat’s 12v DC supply via a 3 Amp breaker or fuse as follows -... -
Page 40: Electronic Interference Suppression
BU Blue Fig 4.20 - Transducer Connections 4.4 Electronic Interference Suppression IS12 has been designed to minimise the effects of interference generated by the engine alternator. However, precautions should still be taken by routing the cables away from the engine compartment. Do not run the cables down trunking carrying high current cables. -
Page 41: Appendix
Before contact- ing your servicing agent please note the unit’s serial number. 5.2 Spares & Accessories The following spares and accessories are available from local Simrad agents. Please quote part number when ordering - IS12Data:R Data y (two line) IS12Mega:R... -
Page 42: Dimensions
IS12 Combi 5.3 Dimensions 50mm (2.0in) 50mm (2.0in) 20mm (0.78in) 17mm (0.67in) 75mm (3.0in) 75mm (3.0in) 110mm (4.3in) 5.4 Specification Supply Voltage 12v (9-16v) DC Current Consumption Light Off - 40mA Light On - 60mA Transducer Frequency 200kHz Sounding Range 0.6 - 100m (2 - 327ft) - Page 44 A L W A Y S T H E F O R E F R O N T T E C H N O L O G Y...
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