Kongsberg Simrad IS12 User manual

ALWAYS AT THE FOREFRONT OF TECHNOLOGY

Instruction Manual
III
Simrad IS12
Depth Instrument
MANUAL

IS12 Depth Sounder
IV E04050 Issue 1.1 11/01/02 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 com-
plete and accurate as possible.
©2002 Simrad Ltd

CONTENTS
1GENERAL1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 IS12 Network System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2OPERATION
2.1 Water Depth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.1 Shallow Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.2.2 Deep Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.3 Info Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Backlighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.5 Remote Control / Alarm Option . . . . . . . . . . . . . . . . . . . . . . . 13
3CALIBRATION
3.1 Selecting Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Damping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3 Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.3.1 Keel Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3.2 Waterline Offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4 Switching Transducer Off / On . . . . . . . . . . . . . . . . . . . . . . . . 19
3.5 Local & Network Backlighting . . . . . . . . . . . . . . . . . . . . . . . . 20
3.6 Shop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.7 Disable Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4INSTALLATION
4.1 Instrument Head Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.1 Front Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1.2 Rear Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.2 Transducer Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.2.1 Selecting a Suitable Location . . . . . . . . . . . . . . . . . . . . 25
4.2.2 Cutting and Sealing the Hole . . . . . . . . . . . . . . . . . . . 26
4.2.3 Installing the Transducer . . . . . . . . . . . . . . . . . . . . . . . 27
4.3 Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4 Electronic Interference Suppression . . . . . . . . . . . . . . . . . . . . 29
5APPENDIX
5.1 Notes on Turbulence & Signal Acquisition . . . . . . . . . . . . . . 30
5.2 Fault Finding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.3 Spares and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.4 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.5 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.6 Service & Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Instruction Manual
V

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 Depth Sounder will offer superb performance.
The IS12 Depth Sounder system is supplied complete with a
through hull depth 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 prod-
ucts without notice.
IS12 Depth Sounder
6E04050
Fig 1.1 - IS12 Depth Sounder Instrument
DEPTH
LIGHT SHALL DEEP INFO
DEPTH
M

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) -
Instruction Manual
7
E04050
Additional instruments can be added to the system to act as
repeaters, for example at the chart table of a sailboat or the fly-
bridge of a powerboat. Thus, as shown in the example above,
the Mega and Data Repeater instruments repeat the informa-
tion from the main instruments.
Fig 1.2 - IS12 Network System
SPEED/LOG
CONTROLLER
ALARM
DEPTH COMPASS
DATAMEGA WIND
WIND Tx
COMPASS Tx

DEPTH
LIGHT SHALL DEEP INFO
DEPTH
M
2 OPERATION
2.1 Water Depth
On power up, the current water depth is shown (Fig 2.1) -
IS12 Depth Sounder
8E04050
Fig 2.1 - Default Depth Display
In this example, the depth is displayed in Metres. The arrow
in the top line of the display indicates the trend (up or down).
NOTE Refer to section 5.1 in the appendix for further information on
how the depth sounder will behave if the depth signal is lost.
As a default, the Depth Sounder will display the depth below
the transducer. 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 Alarms The IS12 Depth Sounder features an audible alarm function
that can be set to alert if the water depth falls below or above a
specified value. This is a useful function to avoid the boat run-
ning aground in shallow water, or straying into deep water.
NOTE The alarms will sound for 15 seconds when triggered by the
alarm condition (unless manually muted), then sound again
after a 15 second pause and continue in this pattern until the
water depth is once again within the specified parameters.
2.2.1 Shallow Alarm
The shallow alarm will sound if the water depth falls below a
specified amount, to warn if the boat is about to run aground.

Press the SHALL key to access the shallow alarm (Fig 2.2) -
Instruction Manual
9
E04050
LIGHT DEEP
Fig 2.2 - Shallow Alarm Function
INFO
If the shallow alarm is OFF, pressing the or (SHALL or
DEEP) keys will switch on the alarm at the previously entered
value (Min 0.6m/2ft, Max 100m/327ft).
Use the or to adjust the shallow alarm setting in 0.1m or
1ft increments and press (INFO) to confirm and exit to the
main screen.
Press and hold the or keys to scroll up and down in 1m /
10ft increments.
Press (LIGHT) to turn the shallow alarm off.
NOTE While the alarm is on, the icon will be shown on the display.
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 SHALL to mute.
M
SHALL
DEPTH
LIGHT SHALL DEEP INFO
SHALL
M

2.2.2 Deep Alarm
The deep alarm will sound if the water depth goes above a
specified amount.
Press the DEEP key to access the deep alarm (Fig 2.3) -
IS12 Depth Sounder
10 E04050
If the deep alarm is OFF, pressing the or (SHALL or
DEEP) keys will switch on the alarm at the previously entered
value (Min 0.6m/2ft, Max 100m/327ft).
Use the or keys to adjust the deep alarm setting in 0.1m
or 1ft increments and press (INFO) to confirm and exit to
the main screen.
Press and hold the and keys to scroll up and down in 1m
/ 10ft increments.
Press (LIGHT) to turn the deep alarm off.
NOTE While the alarm is on, the icon will be shown on the display.
LIGHT
Fig 2.3 - Deep Alarm Function
INFO
M
SHALL
DEPTH
LIGHT SHALL DEEP INFO
DEEP
M
DEEP

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 DEEP 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 Info Key Pressing the INFO key will cycle through the information that
can be shown on the top line of the display (Fig 2.4) -
- Default (DEPTH)
- Shallow alarm setting
- Deep alarm setting
Instruction Manual
11
E04050
The selected information will be displayed permanently on the
top line until the INFO key is pressed again.
Fig 2.4 - Info Key Functions
DEPTH
SH 1.5
DEPTH
DP 45.0
LIGHT INFO
M
SHALL DEEP

2.4 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 2.5) -
IS12 Depth Sounder
12 E04050
Four icons will be shown on the bottom line of the display, cor-
responding to the four keys ( , , and ) Press the
(DEEP) key to increase the brightness (max 5), (SHALL) to
decrease it (min 1), (INFO) to accept the selected brightness
or (LIGHT) to turn the backlighting off.
The currently selected lighting level will be applied if no key is
pressed after five seconds.
NOTE While the backlighting is on, the lamp icon ( ) will be shown
on the bottom left of the display.
The backlighting can either be Local or Network controlled - see
Section 3.5 for more details.
DEPTH
LIGHT SHALL DEEP INFO
LIGHT
Fig 2.5 - Turning Backlighting On
DEEP INFOSHALLLIGHT

2.5 Remote Control / Alarm Option
The optional remote control allows all functions of each instru-
ment to be remotely controlled. Any alarms sounded are also
repeated on this unit. See Section 3.7 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 2.6 indicates the
respective key positions -
Instruction Manual
13
E04050
DEPTH
LIGHT SHALL DEEP INFO
DEPTH
Fig 2.6 - Remote Control Key Positions
Select
Instrument
M

3CALIBRATION
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) -
IS12 Depth Sounder
14 E04050
DEPTH
LIGHT SHALL DEEP INFO
UNITS
Fig 3.1 - Entering Calibration Mode
DEEP INFOSHALLLIGHT
In calibration mode, pressing the (SHALL) or (DEEP)
keys will cycle through the available calibration options -
- Units (Section 3.1)
- Damping (Section 3.2)
- Offset (Section 3.3)
- Transducer Off/On (Section 3.4)
- Local / Network Backlighting (Section 3.5)
- Shop Mode (Section 3.6)
- Disabling Remote Control Facility (Section 3.7)
Select the required option and press to enter. While in the
calibration options, the following key functions apply -
- To save settings and return to Cal menu press .
- To ignore changes and return to Cal menu press .
- To exit calibration mode at any time, press and hold .

3.1 Selecting Units
Enter calibration mode - the display will show UNITS CAL.
Press (INFO). The depth units can then be selected (Metres
or Feet) by pressing the or keys (Fig 3.2) -
Instruction Manual
15
E04050
Press to set the selected depth units.
NOTE Press to exit to the main calibration menu without changes
being saved.
LIGHT INFOSHALL
M
DEEP
or
LIGHT INFOSHALL DEEP
Fig 3.2 - Selecting Depth Units
FT

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
DAMP CAL) and press (INFO).
The damping level can be adjusted using the and keys
(Fig 3.3) -
IS12 Depth Sounder
16 E04050
DEPTH
LIGHT SHALL INFO
DAMP
Fig 3.3 - Adjusting Damping Level
DEEP
To set the selected damping level, press . The display will
then return to the main calibration menu.
NOTE Press to exit to the main calibration menu at any point.

3.3 Offset As a default, the Depth Sounder displays the water depth
between the transducer and the sea bed.
However, for boats such as sailing yachts with a keel, it is more
useful for the display to show the available water below the
keel, which is sometimes as much as 2m below the transducer.
In other circumstances it may be more important to show the
waterline depth, that is the total depth of water from the bot-
tom to the surface.
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.
To calculate the offset amount, measure the vertical distance
between the bottom of the keel and the bottom of the transduc-
er for a keel offset, or the vertical distance between the surface
of the water and the bottom of the transducer for a waterline
offset (Fig 3.4) -
Instruction Manual
17
E04050
NOTE The offset amount will be in the same units as selected in
Section 3.1. - ctd
Fig 3.4 - Depth Offset
Depth below
transducer
Depth below
keel
Waterline Depth
Keel
Offset
Waterline
Offset

To enter the offset, enter calibration mode then press twice
(the display will show OFFST CAL) and press .
The current offset will be displayed - default value 0.0 (Fig 3.5) -
IS12 Depth Sounder
18 E04050
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. The display will show “KEEL” (Fig 3.6) -
DEPTH
LIGHT SHALL INFO
OFFST
DEEP
M
Fig 3.5 - Entering Offset
LIGHT INFODEEP
M
Fig 3.6 - Entering Keel Offset
SHALL
To set the selected keel offset, press . The display will then
return to the main calibration menu.
NOTE Press to exit to the main calibration menu at any point.
KEEL

3.3.2 Waterline Offset
Awaterline offset increases the displayed depth, so this is
entered using the key - this adjusts the offset in 0.1m /0.1ft
increments. The display will show “W’LN” (Fig 3.7) -
Instruction Manual
19
E04050
To set the selected waterline offset, press . The display will
then return to the main calibration menu.
NOTE Press to exit to the main calibration menu at any point.
3.4 Switching Transducer Off / On
If the boat is also fitted with a fishfinder running at a similar
frequency, there may be some interference between the two
transducers. In this case, the transducer can be switched off.
This is also useful to conserve power when on a long ocean
crossing, where the depth sounder is not needed.
Enter calibration mode, press x3 (the display will show
TRANS CAL) and press .
The display will show “On”. To turn the transducer off, press
the or key (the display will show “OFF”) and press to
confirm (Fig 3.8). The display will then return to the main cali-
bration menu.
While the transducer is set to off, the main depth display will
show OFF.
To turn the transducer back on again repeat the above proce-
dure.
NOTE Press to exit to the main calibration menu at any point.
LIGHT INFODEEP
M
SHALL
W’LN
DEPTH
LIGHT INFO
Fig 3.8 - Switching
Transducer Off
TRANS
SHALL DEEP
LIGHT SHALL DEEP INFO
Fig 3.7 - Entering Waterline Offset

3.5 Local & Network Backlighting
The backlighting can be set so that any changes made are
duplicated across the system (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 four times (the display will
show LIGHT on the top line) and press (INFO).
The large digits will show the current setting - NET for
Networked or LOC for Local. The setting can be changed
using the or keys (Fig 3.9) -
IS12 Depth Sounder
20 E04050
To set the selected backlighting, press . The display will then
return to the main calibration menu.
NOTE Press to exit to the main calibration menu at any point.
NOTE Any changes will affect this specific instrument only.
LIGHT SHALL INFO
LIGHT
Fig 3.9 - Changing from Network to Local Backlighting
DEEP