Simrad IS12 User Manual

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Instruction Manual

III

Simrad IS12

Combi Instrument

MANUAL

IS12 Combi

IV

E04052 Issue 1.0 9/11/01 MDL

The technical data, information and illustrations contained in this publication were to the best of our knowledge correct at the time of
going to print. We reserve the right to change specifications, equipment, installation and maintenance instructions without notice as
part of our policy of continuous development and improvement.
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 com­plete and accurate as possible.

© 2001 Simrad Ltd

CONTENTS

1 GENERAL

1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.2 IS12 Network System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 OPERATION

2.1 Depth Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2 Depth Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Speed Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 Log Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.5 Trip Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.6 Water Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.7 Average Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8 Maximum Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.9 Race Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.10 Backlighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.11 Remote Control / Alarm Option . . . . . . . . . . . . . . . . . . . . . . 16

3 CALIBRATION

3.1 Selecting Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.2 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.3 Depth Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3.1 Keel Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.3.2 Waterline Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.4 Switching Depth Transducer Off / On . . . . . . . . . . . . . . . . . . 22

3.5 Speed Sensor Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.5.1 Percentage Correction . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.5.2 “Measured Mile” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.6 Setting Race Countdown Time . . . . . . . . . . . . . . . . . . . . . . . . 27

3.7 Local & Network Backlighting . . . . . . . . . . . . . . . . . . . . . . . . 28

3.8 Shop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

3.9 Disable Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4 INSTALLATION

4.1 Instrument Head Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.1.1 Front Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.1.2 Rear Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.2 Transducer Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.2.1 Selecting a Suitable Location . . . . . . . . . . . . . . . . . . . . 33

4.2.2 Cutting and Sealing the Holes . . . . . . . . . . . . . . . . . . 34

4.2.3 Installing the Depth Transducer . . . . . . . . . . . . . . . . . 35

4.2.3 Installing the Speed Transducer . . . . . . . . . . . . . . . . . 36

4.2.4 Withdrawing the Speed Transducer . . . . . . . . . . . . . . 38

4.3 Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.4 Electronic Interference Suppression . . . . . . . . . . . . . . . . . . . . 40

5 APPENDIX

5.1 Fault Finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.2 Spares and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.4 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.5 Service & Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Instruction Manual

V

1 GENERAL

1.1 Introduction

The Simrad IS12 System is a flexible modular series of instru­ments 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.

The IS12 Combi Speed/Depth system is supplied complete
with a through hull depth transducer, a self sealing through
hull speed transducer and all the necessary cabling. All func­tions are easily accessed, thanks to IS12’s intuitive, user friend­ly control system.

Thank you for choosing Simrad.

If you are pleased with your instrument we hope you will be
interested in our range of marine electronic equipment, which
is manufactured to the same high standards as IS12. Please
contact your nearest Simrad Agent for a catalogue showing our
increasing range of high tech navigational instruments, GPS,
autopilots, Radar, Fishfinders and VHF radio sets.

Simrad operate a policy of continual development and reserve
the right to alter and improve the specification of their prod­ucts without notice.

IS12 Combi

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COMBI

LIGHT

Fig 1.1 - IS12 Combi Instrument

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

DEPTH

SPEED

FTM

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 sin­gle cable (Fig 1.2) -

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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 above,
the Mega and Data Repeater instruments repeat the informa­tion from the main instruments.

Fig 1.2 - IS12 Network System

COMBI

CONTROLLER

ALARM

DATA COMPASS

MEGAMEGA WIND

WIND Tx

COMPASS Tx

COMBI

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

DEPTH

SPEED

FTM

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) -

IS12 Combi

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Fig 2.1 - Default Combi Display

The digits show the water depth below the boat. In this exam­ple, the depth is displayed in Metres.

NOTE As a default, the Combi will display the depth below the trans-

ducer. An offset can be entered so that the display shows
either the depth below the keel or the waterline depth. Refer
to Section 3.3 for more details.

2.2 Depth Alarms

The IS12 Combi features an audible alarm function that can be
set to alert if the water depth falls below or above a specified
value. The shallow alarm will sound if the water depth falls
below a specified amount, to warn if the boat is about to run
aground and the deep alarm will sound if the water depth
goes above a specified amount.

NOTE This function can also be used as a navigation tool when navi-

gating using depth contours - by setting the shallow and depth
alarms below and above the required contour depth, the alarm
will sound if the boat strays off the contour.

To access the depth alarms press the UPPER INFO key once

for the shallow alarm and twice for the deep alarm (Fig 2.2) -

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Fig 2.2 - Depth Alarms

The display shows the current alarm setting (default is OFF).

While the alarm is on, the icon will be shown in the top
right of the display.

NOTE If no key is pressed within 5 seconds, the display will revert to

showing depth.

LIGHT

ALARM

TIMER

LOWER

INFO

UPPER

INFO

COMBI

DEEP

SHALL

DEPTH

FTM

COMBI

LIGHT

ALARM

TIMER

LOWER

INFO

MPH KNM HKts

DEEP

SHALL

DEPTH

SPEED

FTM

UPPER

INFO

LIGHT

ALARM

TIMER

LOWER

INFO

UPPER

INFO

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) -

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If the alarm is OFF, pressing the or (ALARM TIMER or
UPPER INFO) keys will switch on the alarm at the previously
entered value (Min 0.6m/2ft, Max 100m/327ft).

Press or to adjust the alarm in 0.1m or 1ft increments.

Press and hold or to scroll up and down in 1m / 10ft
increments.

Press (LIGHT) to turn the alarm off.
Press (LOWER INFO) to confirm and exit.

COMBI

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

DEEP

SHALL

DEPTH

SPEED

FTM

LIGHT

ALARM

TIMER

LOWER

INFO

UPPER

INFO

1xPress - Shallow Alarm
2xPress - Deep Alarm

Fig 2.3 - Adjusting Alarm Settings

NOTE If no key is pressed within 5 seconds, the display will exit to

the main screen and any changes will be ignored.
If the alarm sounds, press ALARM TIMER to acknowledge

and cancel.

NOTE 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) -

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The display shows the boat speed through the water. In this
example, the speed is displayed in Knots.

2.4 Log Display

The Log is a non-resettable record of distance travelled, similar
to the Odometer on a motor vehicle. To display the Log read­ing, press the LOWER INFO key once (Fig 2.5) -

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

SPEED

Fig 2.4 - Boat Speed Display

LIGHT

ALARM

TIMER

UPPER

INFO

MPH KNM HKts

LOG

Fig 2.5 - Log Display

LOWER

INFO

2.5 Trip Log

Aresettable 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) -

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NOTE The water temperature can be displayed in Centigrade or

Fahrenheit, as selected in the Units calibration menu (see
Section 3.1).

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

TRIP

Fig 2.6 - Trip Log Display

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

To reset the Trip Log back to zero, press the ALARM TIMER
key.

NOTE The Trip Log can only be reset while the Trip Log is being

displayed, and is automatically reset when the instrument is
switched off.

NOTE The Log and Trip can be displayed in Nautical Miles or

Kilometres, as selected in the Units calibration menu (see
Section 3.1).

2.6 Water Temperature

The water temperature (Fig 2.7) can be displayed by pressing
the LOWER INFO key again while in the Trip Log display (or
pressing LOWER INFO three times from the default display).

Fig 2.7 - Water Temperature Display

LIGHT

ALARM

TIMER

UPPER

INFO

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 dis­play, or press LOWER INFOx4 from the default display to
show Average Speed.

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NOTE The display will change back to the default display after 5

seconds.

2.8 Maximum Speed

The Maximum Speed (Fig 2.9) is the highest boat speed mea­sured by the Combi. Press LOWER INFO five times from the
default display to show the Max Speed.

NOTE The display will change back to the default display after 5

seconds.

Fig 2.9 - Maximum Speed Display

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

SPEED

AV

Fig 2.8 - Average Speed Display

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

MPH KNM HKts

SPEED

MX

LOWER

INFO

Press
x 5

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) -

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NOTE The countdown is factory preset to 6 minutes, the standard race

start warning time as specified under the CHS2000 regulations.
However, this can be changed in the calibration menu - see
Section 3.6 for more details.

To start the timer, press the ALARM TIMER key.
Once the timer has been started, the LOWER INFO key can be

pressed to display other information - the timer will continue
to run in the background - pressing ALARM TIMER will
switch to the timer display.

When the countdown timer reaches 0:10, the instrument will
starting beeping for each second of the countdown. When the
timer reaches 0:00 the instrument will sound a long beep indi­cating the start of the race, then the timer will start to count
up, recording the elapsed time.

2.7.1 Pausing Timer

To pause the countdown or elapsed timer, press the ALARM
TIMER key. To continue, press ALARM TIMER again.

2.7.2 Resetting Timer

To reset the timer, press and hold the ALARM TIMER key.

LIGHT

ALARM

TIMER

UPPER

INFO

Fig 2.10 - Race Timer Display

LIGHT

ALARM

TIMER

UPPER

INFO

LOWER

INFO

LOWER

INFO

Press
x 3