IS12_ General
M
A
N
U
A
L
Simrad IS12
Instrument System
IS12 Instrument System
© 2005 Simrad Ltd
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.
IV
Part no. E04820 Issue 1.0 1-Dec-05 WP
Instruction Manual
IS12 INSTRUMENT SYSTEM
Part I - INTRODUCTION
1 GENERAL
1.2 About this manual ..................................................................
1.2 The IS12 instrument range ....................................................
1.3 The IS12 network system ......................................................
11
12
14
Part II - IS12 COMBI
2 OPERATION
2.1 General ..................................................................................
2.2 Depth display .........................................................................
2.3 Depth alarms ..........................................................................
2.4 Speed display .........................................................................
2.5 Log display ............................................................................
2.6 Trip Log .................................................................................
2.7 Water temperature ..................................................................
2.8 Average speed ........................................................................
2.9 Maximum speed ....................................................................
2.10 Race timer ............................................................................
2.10.1 Pausing the timer .......................................................
2.10.2 Resetting the timer .....................................................
2.11 Backlighting ..........................................................................
3 CALIBRATION
3.1 Selecting units .......................................................................
3.2 Damping ................................................................................
3.3 Depth offset ...........................................................................
3.3.1 Keel offset ....................................................................
3.3.2 Waterline offset ............................................................
3.4 Switching the depth transducer off/on ..................................
3.5 Speed sensor calibration ........................................................
3.5.1 Percentage correction ...................................................
3.5.2 “Measured mile” ..........................................................
3.6 Setting countdown timer .......................................................
3.7 Local & network backlighting ...............................................
15
15
15
16
16
17
17
17
17
17
18
18
18
19
19
19
20
20
20
21
21
22
22
23
4 INSTALLATION
4.1 Refer to Part X
Part III - IS12 DEPTH
5 OPERATION
5.1 General ..................................................................................
5.2 Water depth ............................................................................
5.3 Alarms ....................................................................................
5.3.1 Shallow alarm ..............................................................
5.3.2 Deep alarm ...................................................................
5.4 Info key ..................................................................................
5.5 Backlighting ..........................................................................
E04820 Issue 1.0
25
25
25
26
26
27
27
V
IS12 Instrument System
6 CALIBRATION
6.1 Selecting units .......................................................................
6.2 Damping ................................................................................
6.3 Offset .....................................................................................
6.3.1 Keel offset ....................................................................
6.3.2 Waterline offset ............................................................
6.4 Switching the transducer off/on ............................................
6.5 Local & network backlighting ...............................................
28
28
29
29
30
30
30
7 INSTALLATION
7.1 Refer to Part X
Part IV - IS12 SPEED/LOG
8 OPERATION
8.1
8.2
8.3
8.4
8.5
8.6
8.7
8.8
General ..................................................................................
Boat speed .............................................................................
Log display ............................................................................
Trip log ..................................................................................
Water temperature ..................................................................
Average speed ........................................................................
Maximum speed ....................................................................
Race timer ..............................................................................
8.8.1 Pausing the timer .........................................................
8.8.2 Resetting the timer .......................................................
8.9 Backlighting ..........................................................................
33
33
33
33
34
34
34
34
35
35
35
9 CALIBRATION
9.1 Selecting units .......................................................................
9.2 Damping ................................................................................
9.3 Speed sensor calibration ........................................................
9.1.1 Percentage correction ...................................................
9.1.2 “Measured mile” ..........................................................
9.4 Setting race countdown time .................................................
9.5 Local & network backlighting ...............................................
36
37
37
37
38
39
39
10 INSTALLATION
10.1 Refer to Part X
Part V - IS12 WIND
11 OPERATION
11.1
11.2
11.3
11.4
11.5
11.6
11.7
VI
General .................................................................................
Apparent wind angle ............................................................
Apparent wind speed ...........................................................
High wind alarm ..................................................................
True wind angle & wind speed ............................................
Digital close-hauled display ................................................
Backlighting .........................................................................
41
41
42
42
42
43
44
E04820 Issue 1.0
Instruction Manual
12 CALIBRATION
12.1 Selecting units .....................................................................
12.2 Transducer orientation .........................................................
12.3 Wind angle offset .................................................................
12.4 Configuring the IS12 Wind on SimNet ...............................
12.5 Local & network backlighting .............................................
45
45
45
45
47
13 INSTALLATION
13.1 Refer to Part X
Part VI - IS12 COMPASS
14 OPERATION
14.1
14.2
14.3
14.4
General ................................................................................
Compass display ..................................................................
Compass lock mode ............................................................
Backlighting ........................................................................
49
49
49
50
15 CALIBRATION
15.1 Damping ..............................................................................
15.2 Adjusting transducer orientation .........................................
15.3 Compass angle offset ...........................................................
15.4 Transducer calibration .........................................................
15.5 Magnetic/true heading .........................................................
15.6 Magnetic variation ...............................................................
15.7 Configuring the IS12 Compass on SimNet .........................
15.8 Local & network backlighting .............................................
51
51
52
52
53
54
54
55
16 INSTALLATION
16.1 Refer to Part X
Part VII - IS12 DATA
17 OPERATION
17.1
17.2
17.3
17.4
17.5
17.5
General ................................................................................
Upper Info display ...............................................................
Lower Info display ..............................................................
Page display .........................................................................
NMEA sentences .................................................................
Backlighting ........................................................................
57
57
58
58
59
59
18 CALIBRATION
18.1 Page configuration ...............................................................
18.2 Configuring the IS12 Data on SimNet ................................
18.3 Local & network backlighting .............................................
60
61
63
19 INSTALLATION
19.1 Refer to Part X
E04820 Issue 1.0
VII
IS12 Instrument System
Part VIII - IS12 MEGA
20 OPERATION
20.1 General ................................................................................
20.2 Data page information .........................................................
20.2.1 Calibration and settings .............................................
20.2.2 Display units ..............................................................
20.2.3 Information required ..................................................
20.2.4 Canceling alarms ........................................................
20.2.5 Apparent & true wind angle ......................................
20.2.6 VMG (Velocity Made Good) .....................................
20.2.7 XTE (Cross Track Error) ...........................................
20.3 Backlighting ........................................................................
65
66
66
67
67
67
67
68
68
69
21 CALIBRATION
21.1 Units ....................................................................................
21.2 Page configuration ...............................................................
21.3 Operation modes ..................................................................
21.3.1 IS12 mode (Mode 1) ..................................................
21.3.2 NMEA mode (Mode 2) ..............................................
21.3.3 Data required ..............................................................
21.3.4 NMEA sentences ........................................................
21.4 Local & network backlighting..............................................
21.5 Configuring the IS12 Mega on SimNet ...............................
70
70
70
70
71
72
74
74
75
22 INSTALLATION
22.1 Refer to Part X
Part IX - IS12 REMOTE CONTROL
23 OPERATION
23.1
23.2
23.3
23.4
General ................................................................................
Selecting display ..................................................................
Keypad configuration ..........................................................
Canceling alarms .................................................................
77
77
78
78
24 CALIBRATION
24.1 Disabling remote control .....................................................
24.2 Re-enabling control on rear-mounted instruments ..............
79
80
25 INSTALLATION
25.1 Installation ...........................................................................
25.2 Electrical installation ...........................................................
25.3 Unclipping the Remote Control ..........................................
81
82
82
VIII
E04820 Issue 1.0
Instruction Manual
Part X - IS12 INSTALLATION
26 INSTRUMENT HEAD
26.1 General ................................................................................
26.1.1 Front mounting ..........................................................
26.1.2 Rear mounting ............................................................
83
83
84
27 TRANSDUCER
27.1 IS12 Speed and IS12 Depth transducer installation ............
27.2 IS12 Wind transducer installation .......................................
27.2.1 Running the cable ......................................................
27.2.2 Fitting the masthead bracket ......................................
27.2.3 Assembling the transducer .........................................
27.2.4 Attaching/removing the transducer ............................
27.3 Compass transducer installation ..........................................
84
84
84
85
85
86
87
28 ELECTRICAL
28.1 Connecting IS12 instruments ..............................................
28.1.1 IS12 Combi (Depth/Speed) ........................................
28.1.2 IS12 Depth .................................................................
28.1.3 IS12 Speed/Log ..........................................................
28.1.4 IS12 Wind ..................................................................
28.1.5 IS12 Compass (NMEA In) ........................................
28.1.6 IS12 Data (NMEA Out) ............................................
28.1.7 IS12 Mega ..................................................................
28.2 Electronic interference suppression .....................................
28.3 Magnetic interference ..........................................................
88
88
88
89
89
89
90
90
91
91
29 IS12 NETWORK
29.1 Installing an IS12 network ..................................................
29.1.1 Network termination ..................................................
92
92
PART XI – IS12 APPENDIX
30 APPENDIX
30.1
30.2
30.3
30.4
30.5
E04820 Issue 1.0
Troubleshooting ...................................................................
Spares & accessories ...........................................................
Dimensions ..........................................................................
Specification ........................................................................
Service & warranty ..............................................................
95
96
97
98
98
IX
Instruction Manual
INTRODUCTION
1 GENERAL
The Simrad IS12 Instrument System is a flexible, modular series
of instruments that offer large, clear displays, easy-to-operate
functions, and robust, weatherproof construction.
Whether as stand-alone instrument or as part of a networked
navigation system, the IS12 will offer superb performance. All
functions are easily accessed, thanks to the 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 catalog 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.
1.1 About this manual
The manual includes eight IS12 instruments and has been split
into operation and calibration information for each instrument.
Common functions are described in the chapters on installation, and additional information is provided in the appendix.
The exception to this is the Remote Control which includes
operation, calibration, and installation in a single chapter.
E04820 Issue 1.0
11
Introduction
Part I
Introduction
IS12 Instrument System • Part I – Introduction
1.2 The IS12 instrument range
IS12 Combi
A versatile instrument that combines the functionality of the
separate Depth and Speed displays in a single display. Depth
and speed measurements are presented in an easy to read twoline format and additional information such as log, race timer
and water temperature can be displayed at the press of a button.
The system comes complete with through-hull depth and speed
transducers.
IS12 Depth
The IS12 Depth instrument features keel and waterline offset
options together with shallow and deep alarms for safer navigation. Depths are displayed in large characters on a high contrast, backlit LCD making it easy to read by day or night. The
IS12 Depth instrument comes complete with a through-hull
depth transducer. The depth system can be easily disabled when
not required to avoid interference with other electronics such as
fishfinders.
IS12 Speed/Log
In addition to accurate measurement of boat speed the IS12
Speed/Log offers a many functions including a built-in race
timer, cumulative and trip logs, and water temperature.
Information is displayed on its large single line, backlit LCD
making it easily read by day or night. The system comes supplied with a through-hull transducer with self sealing valve that
aids removal of the transducer for cleaning.
IS12 Wind
An instrument packed full of features, measuring apparent wind
speed and angle with a high wind alarm. When boat speed
information is available from a speed or combi instrument, the
IS12 Wind can also display true wind speed and angle. With a
high visibility, backlit analogue display and integrated LCD, it
is easy to read by day or night. The IS12 Wind system comes
complete with an easy mount masthead transducer and 30m of
lightweight transducer cable.
IS12 Compass
Having a large high visibility, backlit analogue display with an
integrated LCD, the IS12 compass displays the boats current
heading as either True or Magnetic. The device also features a
lock to bearing function in which the display shows the deviation from a pre-selected heading. The system is supplied complete with a fluxgate compass transducer that is easily connected to any convenient port on the data network.
12
E04820 Issue 1.0
Instruction Manual
The IS12 Data instrument is a versatile unit that repeats data
from the network and displays it in an easy to read two-line format. Each line can be independently selected at the touch of a
button and pages can even be customized so that the most frequently used are most rapidly accessible. The IS12 Data also
converts network information to NMEA0183 format for easy
export to other devices.
IS12 Mega
The IS12 Mega is an extremely flexible instrument that:
• Repeats information from both Simrad network devices
and third party NMEA0183 devices.
• Converts Simrad instrument data to NMEA0183 format
• Converts NMEA0183 navigation data to Simrad data
format
A single button press scrolls the display through 32 information
pages and any unused pages can be switched off so that frequently used pages can be accessed most quickly. The information is displayed in large characters which are easy to read even
from a distance.
IS12 Remote Control/Alarm
The IS12 Remote Controller/Alarm can be used to control all of
the major functions of any IS12 instrument on the same network, including calibration and alarms functions. This means
that all instruments, no matter where they are located, can be
controlled from any convenient position. It can be used either as
a handheld device or fixed to the dash.
E04820 Issue 1.0
13
Introduction
IS12 Data
Introduction
IS12 Instrument System • Part I – Introduction
1.3 The IS12 network system
The IS12 system is built around Simrad’s proprietary high-speed
bus networking system SimNet. This allows instruments to be
easily interconnected and share data.
All units are interconnected and powered using a standard single
cable (Fig 1.2).
WIND Tx
MEGA
DATA
WIND
SPEED/LOG
DEPTH
COMPASS
REMOTE
CONTROL
COMPASS Tx
Fig 1.2 - Example of an IS12 network system set-up
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.
14
E04820 Issue 1.0
Instruction Manual
Part II
IS12 COMBI
2.1 General
As well as displaying depth and boat speed in whichever units you
prefer, the IS12 Combi offers a host of additional features. Depth
offsets, shallow and deep alarms and start timers are all adjustable,
and additional information such as water temperature, cumulative
log, trip log and race times are easily displayed at the press of a
button.
2.2 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).
The digits show the water depth below the boat. In this example,
the depth is displayed in meters (M).
COMBI
FTM
DEPTH
SPEED
HKts
LIGHT
ALARM
TIMER
UPPER
INFO
LOWER
INFO
Fig 2.1 - Default Combi display
Note
As a default, the Combi 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 information on how to program a
keel or waterline offset.
2.3 Depth alarms
The IS12 Combi features an audible alarm function that can be
set to alert if the water depth falls below or rises 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
E04820 Issue 1.0
15
Combi
2 OPERATION
IS12 Instrument System • Part II – IS12 Combi
aground and the deep alarm will sound if the water depth goes
above a specified amount.
Combi
Note
This function can also be used as a navigation tool when
navigating 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.
COMBI
SHALL
M
DEPTH
SPEED
KTS
LIGHT
ALARM
TIMER
UPPER
INFO
LOWER
INFO
Fig 2.2 - Depth alarms
COMBI
DEEP
M DEPTH
SPEED
KTS
LIGHT
ALARM
TIMER
UPPER
INFO
LOWER
INFO
Fig 2.3 - Adjusting
alarm settings
To access the depth alarms press the UPPER INFO key once
for the shallow alarm and twice for the deep alarm (Fig 2.2).
The display shows the current alarm setting (default is “OFF”).
While the alarm is on, the
icon will be shown in the top
right-hand corner of the display.
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).
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. 0.6 m/2 ft, max. 100 m/328 ft).
Press
or
to adjust the alarm in 0.1 m or 1 ft increments.
Press and hold
increments.
or
to scroll up and down in 1 m or 10 ft
Press (LIGHT) to turn the alarm off. Press
INFO) to confirm and exit.
(LOWER
If the alarm sounds, press ALARM TIMER to acknowledge
and cancel.
Note
If no key is pressed within 5 seconds, the display will exit to the
main screen and any changes will be ignored.
Note
The deep alarm cannot be set lower than the shallow alarm, and
the shallow alarm cannot be set higher than the deep alarm.
2.4 Speed display
When the IS12 Combi is switched on, the current boat speed is
shown on the bottom line of the display. The display shows the
boat speed through the water.
2.5 Log display
The Log is a non-resettable record of distance traveled, similar
to the odometer on a motor vehicle. To display the Log reading,
press the LOWER INFO key once.
16
E04820 Issue 1.0
Instruction Manual
2.6 Trip Log
A resettable Trip Log is available by pressing the LOWER INFO key
twice. The Trip log shows the distance traveled since it was last reset. To
reset the Trip log back to zero, press the ALARM TIMER key.
The Trip Log can only be reset while the Trip Log is being displayed,
and is automatically reset when the instrument is switched off.
➞ The Log and Trip can be displayed in Nautical miles or
kilometers (see the Units Calibration menu, section 3.1).
2.7 Water temperature
The water temperature 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).
➞ The water temperature can be displayed in Centigrade or
Fahrenheit (see the Units Calibration menu, section 3.1).
2.8 Average speed
The average speed (“AVSPEED”) 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 INFO four times from the default display to show average
speed.
Note
The display will change back to the default display after 5 secs.
2.9 Maximum speed
The maximum speed (“MX SPEED”) is the highest boat speed
measured by the Combi. Press LOWER INFO five times from
the default display to show maximum speed.
Note
The display will change back to the default display after 5 secs.
2.10 Race timer
The Race 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.
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
E04820 Issue 1.0
17
Combi
Note
IS12 Instrument System • Part II – IS12 Combi
Combi
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.
2.10.1 Pausing the timer
To pause the countdown or elapsed timer, press the ALARM
TIMER key. To continue, press ALARM TIMER again.
2.10.2 Resetting the timer
To reset the timer, press and hold the ALARM TIMER key.
2.11 Backlighting
The backlighting illuminates the display and the keys, with five
levels of brightness.
COMBI
LIGHT
ALARM
TIMER
UPPER
INFO
LOWER
INFO
Fig 2.4 - Adjusting
Backlighting
Note
To switch the backlighting on, press the LIGHT key. The display
will illuminate and the large digits will show the current lighting
level (Fig 2.4) - Press the (UPPER INFO) key to increase
the brightness (max 5), (ALARM TIMER) to decrease it
(min 1), (LOWER INFO) to accept the selected brightness
or (LIGHT) to turn the backlighting off.
While the backlighting is on, the lamp icon (
on the bottom left of the display.
) will be shown
➞The backlighting can either be Local or Network controlled. Local
control means that any adjustments to lighting will only affect this
specific instrument. With Network control, all instruments in the network
will be affected. See Section 3.7 for more details.
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).
COMBI
LIGHT
ALARM
TIMER
UPPER
INFO
LOWER
INFO
Fig 3.1 - Entering
Calibration mode
18
Once in Calibration mode, pressing the (ALARM TIMER)
and (UPPER INFO) keys will cycle through the available
calibration options:
• Units (section 3.1)
• Damping (section 3.2)
• Depth offset (section 3.3)
• Depth transducer on/off (section 3.4)
E04820 Issue 1.0
Instruction Manual
• Speed sensor calibration (section 3.5)
• Setting race countdown time (section 3.6)
• Local/network backlighting (section 3.7)
• Disabling remote control facility (section 24.1)
Note
Combi
To exit Calibration mode at any point, press and hold
(LIGHT).
3.1 Selecting units
K M H KTS
LIGHT
TIMER
RESET
Enter Calibration mode and press (LOWER INFO). The
depth units can then be selected (meters, feet) using the and
keys. Press to set the selected depth units.
INFO
or
Fig 3.2 - Selecting
speed units
The speed units can then be selected (knots, kmh, mph) by
pressing the or key (Fig 3.2). Press to set the selected
speed units.
Next, the distance units can then be selected (Nm, km). Again,
use the and keys to select, then press to set.
The top digits will then show the temperature units (Centigrade
or Fahrenheit). Use the and keys to select, then press to
set. The unit will then return to the main Calibration menu.
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.
COMBI
LIGHT
UPPER
INFO
ALARM
TIMER
INFO
Enter Calibration mode, press once (the display will show
“CAL DPG”) and press (LOWER INFO). The damping
level can be adjusted using the and keys (Fig 3.3).
or
Fig 3.3 Adjusting damping
To set the selected damping level, press . The display will
then return to the main Calibration menu.
3.3 Depth 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 (6.5ft) 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 bottom to the surface.
E04820 Issue 1.0
19
IS12 Instrument System • Part II – IS12 Combi
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.
Waterline Depth
transducer
Depth below
keel
Depth below
Keel
Offset
Waterline
Offset
Combi
To calculate the offset amount, measure the vertical distance
between the bottom of the keel and the bottom of the transducer
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).
Fig 3.4 - Depth offset
Note
The offset amount will be in the same units as selected in
section 3.1.
To enter the offset, enter Calibration mode then press twice
(the display will show “CAL OFST”) and press . The current
offset will be displayed – the default value is 0.0.
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. To confirm the selected keel offset, press . The
display will then return to the main Calibration menu.
3.3.2 Waterline offset
A waterline offset increases the displayed depth, this is entered
using the key and adjusts the offset in 0.1m/0.1ft increments.
Confirm the selected waterline offset by pressing . The display
will then return to the main Calibration menu.
3.4 Switching the 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
20
E04820 Issue 1.0
Instruction Manual
depth 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 three times (the display will
show “CAL TRAN”) and press .
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
different hull shapes and characteristics can give a slightly
different speed reading to the actual speed through the water.
Enter Calibration mode, press four times (the display will
show “CAL SPD”) and press . Two speed calibration options
are then available by pressing or .
The first option is calibration by percentage correction (section
3.5.1), which can be performed at the dockside or at sea. The
second is calibration by “measured mile” (section 3.5.2), which
must be performed at sea. Either one of these can be used to
calibrate the Speed Log.
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 = 6 kts
Displayed Boat Speed = 5 kts
Actual
Error = Displayed
x 100 = 120%
Therefore, a percentage correction of 120% must be entered:
Select the “ ” option in the Speed Cal menu and press .
The display will show the current boat speed and correction
percentage on the display.
Use the and keys to adjust the percentage correction to the
required level and press to set. The display will then return
to the main Calibration menu.
E04820 Issue 1.0
21
Combi
The display will show “ON”. To turn the transducer off, press
the or key (the display will show “OFF”), then press to
confirm. The display will then return to the main Calibration
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 procedure.
IS12 Instrument System • Part II – IS12 Combi
3.5.2 “Measured mile”
Combi
This procedure automatically calibrates the speed sensor by measuring
the average time to cover a known distance and com-paring this
with the time it should have taken to cover this distance at the measured
boat speed (Fig 3.5). The error is automatically calculated and used
to adjust the speed sensor data.
Measured Boat Speed is compared
to the Calculated Boat Speed over
a measured distance
Fig 3.5 - Calibrating boat speed over measured mile
Select the “LEG1” option in the Speed Cal menu. Do not press
at this point.
COMBI
LIGHT
TIMER
RESET
INFO
Fig 3.6 - “Measured
mile” calibration display
COMBI
The display will show “– – –” and “LEG1” (Fig 3.6). When
the boat reaches the start of the measured distance, press the
key – the display will show “RUN”. Press the key to cancel
the calibration at any point.
At the end of the measured distance run, press . The display
will show “END”. To calibrate the log based on the Leg 1 run
only press again – the display will then exit to the main Calibration
menu.
To re-run Leg 1 again, press
repeat the above procedure.
LIGHT
ALARM
TIMER
UPPER
INFO
LOWER
INFO
or
to select “LEG1” and
For maximum accuracy, the run should be repeated in the
opposite direction – press or to select “LEG2” (Fig 3.7)
and repeat the above procedure.
Fig 3.7 - Selecting
Leg 2 of a measured
distance run
At the end of Leg 2 press to calibrate the log as an average
of the two Legs and return to the main Calibration menu.
Note
The measured distance used in the calibration procedure will
depend on the units selected (see section 3.1).
- If distance units are Nm, then measured distance is 1Nm.
- If distance units are Km, then measured distance is 1Km.
3.6 Setting countdown time
Although the countdown timer is set at 6 minutes, which is the
recognized countdown time as specified in the CHS2000 racing
22
E04820 Issue 1.0
Instruction Manual
regulations, this can be changed to any value (in 1-min
increments) between 1 min and 9 min 59 secs (max). To
enter Calibration mode, press five times (the display will
show “CAL C’DN”) and press (LOWER INFO).
To set the selected countdown, press
return to the main Calibration menu.
and
keys.
. The display will then
3.7 Local & Network Backlighting
The backlighting can either be local or network controlled.
Local control means that any adjustments to lighting will only
affect this specific instrument. With network control, all
instruments in the network will be affected. The IS12
instruments are set to network lighting by default.
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).
The top line 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.
Note
Press
Note
Any changes will affect this specific instrument only.
to exit to the main calibration menu at any point.
4 INSTALLATION
Refer to Part X
E04820 Issue 1.0
23
Combi
The countdown time can be adjusted using the
Instruction Manual
Part III
IS12 DEPTH
5 OPERATION
5.1 General
5.2 Water depth
On power up, the current water depth is shown (Fig 5.1).
DEPTH
DEPTH
M
LIGHT
SHALL
DEEP
INFO
Fig 5.1 - Default Depth display
In this example, the depth is displayed in meters (M). The
arrow in the top line of the display indicates the trend (▲ or ▼).
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 6.3 for more details about depth offsets.
5.3 Alarms
The IS12 Depth Sounder features an audible alarm function
that can be set to alert if the water depth falls below or rises
above a specified value. This is a useful function to avoid the
boat running aground in shallow water or straying into deep
water.
E04820 Issue 1.0
25
Depth
As well as displaying depth in whichever units you prefer, the
IS12 depth instrument offers additional, easy to use features
such as depth offsets and shallow and deep alarms. The IS12
depth also has large buttons for ease of use and a dimmable
backlit display for night sailing.
IS12 Instrument System • Part III – IS12 Depth Sounder
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.
5.3.1 Shallow alarm
DEPTH
Depth
SHALL
M
LIGHT
SHALL
DEEP
INFO
Fig 5.2 - Shallow
alarm function
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 5.2). 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 0.1 m or
1 ft increments and press (INFO) to confirm and exit to the
main screen. Press and hold the or keys to scroll up and
down in 1 m/10 ft increments.
If the alarm sounds, press SHALL to acknowledge and cancel.
Note
While the alarm is on, the
Note
If no key is pressed within 5 seconds, the display will exit to the
main screen and any changes will be ignored.
Pressing
icon will be shown on the display.
(LIGHT) will disable the shallow alarm.
5.3.2 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 5.3).
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).
DEPTH
DEEP
M
LIGHT
SHALL
DEEP
INFO
Fig 5.3 - Deep alarm
function
Use the or keys to adjust the deep alarm setting in 0.1m or
1 ft increments and press (INFO) to confirm and exit to the
main screen. Press and hold the and keys to scroll up and
down in 1 m/10 ft increments.
If the alarm sounds, press DEEP to acknowledge and cancel.
Note
While the alarm is on, the
Note
If no key is pressed within 5 seconds, the display will exit to the
main screen and any changes will be ignored.
Note
The deep alarm cannot be set lower than the shallow alarm, and
the shallow alarm cannot be set higher than the deep alarm.
Pressing
26
icon will be shown on the display.
(LIGHT) will disable the deep alarm.
E04820 Issue 1.0
Instruction Manual
5.4 Info key
SHALL
LIGHT
DEEP
INFO
Pressing the INFO key will cycle through the information that
can be shown on the top line of the display (Fig 5.4).
- Default (“DEPTH”)
- Shallow alarm setting (“SH”)
- Deep alarm setting (“DP”)
DEPTH
SH 1.5
DP 45.0
Fig 5.4 - Info key functions
5.5 Backlighting
LIGHT
SHALL
DEEP
INFO
DEPTH
LIGHT
LIGHT
SHALL
DEEP
INFO
Fig 5.5 - Adjusting
backlighting
Note
The backlighting illuminates the display and the keys, with
five levels of brightness.
To switch the backlighting on, press the LIGHT key. The
display will illuminate and the large digits will show the
current lighting level (Fig 5.5) - Four icons will be shown
on the bottom line of the display, corresponding 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.
While the backlighting is on, the lamp icon (
on the bottom left of the display.
) will be shown
➞ The backlighting can either be Local or Network controlled. Local
control means that any adjustments to lighting will only affect this
specific instrument. With Network control, all instruments in the network
will be affected. See section 6.5 for more details.
27
Depth
The selected information will be displayed permanently on the
top line until the INFO key is pressed again.
DEPTH
IS12 Instrument System • Part III – IS12 Depth Sounder
6 CALIBRATION
To protect the calibration functions, these are held in a hidden
menu. To enter Calibration mode, press and hold the LIGHT
key (Fig 6.1). In Calibration mode, pressing the (SHALL) or
(DEEP) keys will cycle through the available options:
DEPTH
UNITS
Depth
LIGHT
SHALL
DEEP
• Units (section 6.1)
• Damping (section 6.2)
• Depth offset (section 6.3)
• Transducer off/on (section 6.4)
• Local/network backlighting (section 6.5)
• Disabling remote control facility (section 24.1)
INFO
Fig 6.1 - Entering
Calibration mode
Select the required option and press to enter. While in the
calibration options mode, the following key functions apply:
- To save settings and return to the Cal menu press .
- To ignore changes and return to the Cal menu press .
- To exit Calibration mode at any time press and hold .
6.1 Selecting units
Enter Calibration mode – the display will show “UNITS CAL”.
Press (INFO). The depth units can then be selected (meters
or feet) by pressing the or keys. Press to set the selected
depth units.
Note
Press to exit to the main Calibration menu without changes
being saved.
6.2 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.
DEPTH
DAMP
LIGHT
SHALL
DEEP
INFO
Fig 6.2 - Adjusting
damping level
28
Enter Calibration mode, press once (the display will show
“DAMP CAL”) and press (INFO). The damping level can be
adjusted using the (SHALL) and (DEEP) keys (Fig 6.2).
To set the selected damping level, press . The display will
then return to the main Calibration menu.
E04820 Issue 1.0
Instruction Manual
6.3 Depth 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
(6.5ft) 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 bottom to the surface.
Waterline Depth
transducer
Depth below
keel
Depth below
Keel
Offset
Waterline
Offset
To calculate the offset amount, measure the vertical distance between
the bottom of the keel and the bottom of the transducer 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 6.3).
Fig 9.3 - Depth offset
Note
The offset amount will be in the same units as selected in section 6.1.
To enter the offset, enter Calibration mode then press twice
(the display will show “OFFST CAL”) and press . The current
offset will be displayed – the default value is 0.0.
6.3.1 Keel offset
KEEL
M
LIGHT
SHALL
DEEP
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 6.4).
INFO
Fig 6.4 - Entering
keel offset
E04820 Issue 1.0
To set the selected keel offset, press . The display will then
return to the main Calibration menu.
29
Depth
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.
IS12 Instrument System • Part III – IS12 Depth Sounder
6.3.2 Waterline offset
W’LN
M
LIGHT
SHALL
DEEP
INFO
Fig 6.5 - Entering
waterline offset
Depth
A waterline offset increases the displayed depth and this can be
entered using the key, which adjusts the offset in 0.1m/0.1ft
increments. The display will show “W’LN” (Fig 6.5).
To set the selected waterline offset, press . The display will
then return to the main Calibration menu.
6.4 Switching the 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.
DEPTH
TRANS
LIGHT
SHALL
DEEP
INFO
Enter Calibration mode, press three times (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 6.6).
The display will then return to the main Calibration menu.
LIGHT
SHALL
DEEP
INFO
Fig 6.6 - Switching
the transducer off
While the transducer is set to off, the main depth display will
show “OFF”. To turn the transducer back on again, repeat the
above procedure.
6.5 Local/Network backlighting
The backlighting can either be local or network controlled.
Local control means that any adjustments to lighting will only
affect this specific instrument. With network control, all
instruments in the network will be affected.
Note
The IS12 instruments are set to network lighting by default.
To 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
30
E04820 Issue 1.0
Instruction Manual
using the or keys. To set the selected backlighting mode,
press . The display will then return to the main menu.
Note
Press
Note
Any changes will affect the specific instrument only.
to exit to the main Calibration menu at any point.
Depth
7 INSTALLATION
Refer to Part X
E04820 Issue 1.0
31
Instruction Manual
Part IV
IS12 SPEED/LOG
8 OPERATION
8.1 General
8.2 Boat speed
When the IS12 Speed Log is switched on, the display will show
the current boat speed (Fig 8.1).
SPEED
SPEED
KTS
LIGHT
TIMER
RESET
INFO
Fig 8.1 - Default Speed display
The main digits show the boat speed through the water. In this
example, the speed is displayed in Knots (KTS). The arrow in
the top line of the display indicates the speed trend (▲ or ▼).
8.3 Log display
The Log is a non-resettable record of distance traveled, similar
to the odometer on a motor vehicle. To display the Log reading,
press the INFO key once.
8.4 Trip log
A resettable Trip log is also available, by pressing the INFO
key again from the Log display (or pressing INFO twice from
E04820 Issue 1.0
33
Speed/Log
As well as displaying the boats speed in whichever units you
prefer, the IS12 speed/log is packed full of features. A racing
timer showing both countdown and elapsed times, maximum
and average speeds, also additional information such as water
temperature, cumulative log and trip log. The IS12 Speed/Log
has large buttons for ease of use with a large one line, fully
dimmable backlit display, making it easy to read during both
day and night time sailing.
IS12 Instrument System • Part IV – IS12 Speed/Log
the default display). The Trip log shows the distance traveled
since it was last reset.
To reset the Trip log, press the RESET key.
Note
The Trip log can only be manually reset while in the Trip log
display screen; it is automatically reset when the instrument is
switched off.
Note
The Log and Trip log can be displayed in Nautical miles (Nm)
or kilometers (KMH), as selected in the Units Calibration menu
(see section 9.1).
Speed/Log
8.5 Water temperature
The water temperature can be displayed by pressing the INFO
key again while in the Trip log display (or pressing INFO three
times from the default display).
Note
The water temperature can be displayed in Centigrade or
Fahrenheit, as selected in the Units Calibration menu (see
section 9.1).
8.6 Average speed
The average speed (“AVSPD”) is calculated using the mean
boat speed taken over the time the Speed log has been switched
on. Press INFO once from the water temperature display (or
press INFO four times from the default display) to show the
average speed.
Note
The display will change back to the default display after 5 secs.
While the average speed is being displayed, it can be reset by
pressing the RESET key.
8.7 Maximum speed
The maximum speed (“MXSPD”) is the highest boat speed measured
while the Speed log has been switched on. Press INFO five times
from the default display to show the maximum speed.
Note
The display will change back to the default display after 5 secs.
While the maximum speed is being displayed, it can be reset by
pressing the RESET key.
8.8 Race timer
The Race timer function acts both as a race start countdown
timer and an elapsed time display. To access the Timer press the
TIMER key (or INFO six times) from the default display.
34
E04820 Issue 1.0
Instruction Manual
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 9.4 for more details).
To start the timer, press the TIMER key again. Once the timer
has been started, the INFO key can be pressed to display other
information – the timer will continue to run in the background.
The default display will show the timer in the top line of the
display, allowing both the boat speed and timer to be displayed
simultaneously.
Pressing TIMER will switch the timer to the large digits.
When the countdown timer reaches 0:10, the instrument will
start 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.
Note
When the countdown reaches zero, the display will always
change to the timer/boatspeed split display. Pressing TIMER
will display the elapsed time on the large digits.
8.8.1 Pausing the timer
To pause the countdown or elapsed timer press TIMER once to
enter the timer screen, then press TIMER again. The display
will show “STOP”. To continue, press TIMER again.
8.8.2 Resetting the timer
To reset the timer back to the countdown start (default 6 minutes),
press the RESET key.
8.9 Backlighting
The backlighting illuminates the display and the keys, with five
levels of brightness.
SPEED
LIGHT
LIGHT
TIMER
RESET
INFO
Fig 8.2 - Turning
Backlighting On
E04820 Issue 1.0
To switch the backlighting on, press the LIGHT key. The display
will illuminate and the large digits will show the current lighting
level (Fig 8.2).
Four icons will be shown on the bottom line of the display,
corresponding to the four keys ( , , and ) Press the
(RESET) key to increase the brightness (max 5), (TIMER)
to decrease it (min 1), (INFO) to accept the selected brightness
or (LIGHT) to turn the backlighting off.
35
Speed/Log
Note
IS12 Instrument System • Part IV – IS12 Speed/Log
Note
While the backlighting is on, the lamp icon (
on the bottom left of the display.
) will be shown
➞ The backlighting can either be Local or Network controlled.
Local control means that any adjustments to lighting will only
affect this specific instrument. With Network control, all
instruments in the network will be affected. (See section 9.5
for more details.)
Speed/Log
9 CALIBRATION
To protect the calibration functions, these are held in a hidden
menu. To enter Calibration mode, press and hold the LIGHT
key. The display will show “CAL” (Fig 9.1).
SPEED
UNITS
Once in Calibration mode, pressing the (TIMER) or (RE-SET)
keys will cycle through the available calibration options:
LIGHT
TIMER
RESET
INFO
Fig 9.1 - Entering
Calibration mode
Note
• Units (section 9.1)
• Damping (section 9.2)
• Speed sensor calibration (section 9.3)
• Race countdown time (section 9.4)
• Local/Network backlighting (section 9.5)
• Disabling remote control facility (section 24.1)
To exit Calibration mode at any time, press and hold
(LIGHT).
9.1 Selecting units
K M H KTS
LIGHT
TIMER
RESET
INFO
or
Fig 9.2 - Selecting
speed units
Enter Calibration mode – the display will show “UNITS CAL”.
Press (INFO). The speed units can then be selected (knots,
kmh, mph) by pressing the or keys (Fig 9.2).
Press
to set the selected speed units.
Next, the distance units can be selected (Nm, km). These are
shown on the top line of the display. Again, use the or key
to select, then press to set.
The large digits will then show the temperature units (Centi-grade
or Fahrenheit). Use the or keys to select, and press to set.
The unit will then return to the main Calibration menu.
36
E04820 Issue 1.0
Instruction Manual
9.2 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.
SPEED
DAMP
LIGHT
TIMER
RESET
INFO
Fig 9.3 - Adjusting
the damping level
Enter Calibration mode, press once (the display will show
“DAMP CAL” on the top line) and press (INFO).The damping
level can be adjusted using the or keys (Fig 9.3).
To set the selected damping level, press . The display will
then return to the main Calibration menu.
When the IS12 Speed Log is first installed, it is important that
the speed sensor is calibrated properly, as different boats with
different hull shapes and characteristics can give a slightly
different speed reading to the actual speed through the water.
Enter Calibration mode, press twice (the display will show “SPEED
CAL” on the top line) and press . Two speed calibration options
are then available by pressing or .
The first option is calibration by percentage correction (see
section 9.3.1), which can be performed at the dockside or at
sea. The second is calibration by “measured mile”, which must
be performed at sea. Either one of these can be used to calibrate
the speed log to the boat.
9.3.1 Percentage correction
This method can be used if the displayed speed and the actual
speed vary by the same ratio. For example:
SPEED
100%
Actual Boat Speed = 6 kts
Displayed Boat Speed = 5 kts
KTS
LIGHT
TIMER
RESET
INFO
Fig 9.4 - Entering
percentage correction
Actual
Error = Displayed x 100 = 120%
Therefore, a percentage correction of 120% must be entered:
Select the “ ” option in the Speed Cal menu and press .
The display will show the current correction percentage on the
top line of the display (Fig 9.4).
Use the or keys to adjust the percentage correction to the
required level and press to set. The display will then return to
the main Calibration menu.
E04820 Issue 1.0
37
Speed/Log
9.3 Speed sensor calibration
IS12 Instrument System • Part IV – IS12 Speed/Log
9.3.2 “Measured mile”
This procedure automatically calibrates the speed sensor by
comparing the measured average boat speed over a known distance
and comparing this with what it should have been to cover this
distance (Fig 9.5). From this the error is automatically calculated
and used to adjust the speed sensor data.
Speed/Log
SPEED
Measured Boat Speed is compared
to the Calculated Boat Speed over
a measured distance
LEG1 NM
Fig 9.5 - Calibrating boat speed over measured mile
LIGHT
TIMER
RESET
INFO
Fig 9.6 “Measured mile”
calibration display
Select the “LEG1” option in the Speed Cal menu. Do not press
at this point.
The display will show “– – –” on the large digits (Fig 9.6).
➞ The measured distance used in the calibration procedure
will depend on the units selected (see section 9.1):
- If distance units are Nm, then measured distance is 1 Nm.
- If distance units are km, then measured distance is 1 km.
When the boat reaches the start of the measured distance, press
the key – the display will show “RUN” (Fig 9.7). Press the
key to cancel the calibration.
LIGHT
TIMER
RESET
INFO
Fig 9.7 - During
measured distance run
At the end of the measured distance run press . The display
will show “END”. To calibrate the log based on the Leg 1 run
only press again – the display will then exit to the main
Calibration menu.
To re-run Leg 1 again, press
repeat the above procedure.
SPEED
LEG2 NM
or
to select “LEG1” and
For maximum accuracy, the run should be repeated in the
opposite direction – press or to select “LEG2” (Fig 9.8)
and repeat the above procedure.
LIGHT
TIMER
RESET
INFO
Fig 9.8 - Selecting
Leg 2 of Measured
Distance Run
38
At the end of Leg 2 press to calibrate the log as an average
of the two Legs and return to the main Calibration menu.
E04820 Issue 1.0
Instruction Manual
9.4 Setting race countdown time
Although the countdown timer is set at 6 minutes, which is
the recognized countdown time as specified in the CHS2000
racing regulations, this can be changed to any value (in 1 min
increments) between 1 minute and 9:59 min (max).
Enter Calibration mode, press three times (the display will
show “RACE CAL” on the top line) and press (INFO).
The countdown time can be adjusted using the
keys.
. The display will then
9.5 Local/Network backlighting
The backlighting can either be local or network controlled. Local
control means that any adjustments to lighting will only affect
this specific instrument. With network control, all instruments in
the network will be affected. The IS12 instruments are set to
network lighting by default.
Note
The IS12 instruments are set to Networked lighting as default.
To enter calibration mode, press four times (the display will
show “LIGHT CAL” on the top line) and press (INFO).
The large digits will show the current setting: “NET” for network
or “LOC” for local. The setting can be changed using the or
key. To set the selected backlighting, press . The display will then
return to the main menu.
Note
Press
Note
Any changes will affect the specific instrument only.
to exit to the main Calibration menu at any point.
10 INSTALLATION
Refer to Part X
E04820 Issue 1.0
39
Speed/Log
To set the selected countdown, press
return to the main Calibration menu.
and
Instruction Manual
Part V
IS12 WIND
11 OPERATION
11.1 General
The IS12 Wind instrument has a large analogue display showing
wind angle. An integrated LCD offers a choice of digital wind
speed or wind angle . If used in conjunction with the IS12
speed or combi display, it will also display true wind angle and
speed. The IS12 wind instrument offers additional, easy to use
features such as high wind alarm, wind angle offset and a digital
close-haul display. The IS12 wind also has large buttons for ease
of use and a dimmable backlit display for night sailing.
When the IS12 Analogue Wind instrument is switched on, the
apparent wind angle is shown as an analogue readout (Fig 11.1).
LIGHT
WIND
ALARM
TRUE
APP
INFO
Fig 11.1 - Analogue wind angle display
The pointer indicates the direction that the wind is coming from
relative to the boat (indicated by the “boat shape” on the fascia).
In this example, the wind angle is 45° from the starboard bow.
The wind angle can also be displayed digitally (see section 11.6
for further details).
Note
E04820 Issue 1.0
As a standalone instrument, the Analogue Wind instrument can
only show the apparent wind angle – this is the direction the
wind appears to be coming from, which is distorted by the forward
velocity of the boat. In practical terms, this is the correct wind
angle to trim to, but true wind angle and speed information can
also be displayed if there is input from an IS12 Speed Log or
Combi instrument (see section 11.5 for more details).
41
Wind
11.2 Apparent wind angle
IS12 Instrument System • Part V – IS12 Wind Speed/Angle
11.3 Apparent wind speed
The apparent wind speed is shown on the digital display. This
can be shown in knots, [kilo]meters per second, miles per hour,
or Beaufort. A digital marker indicates the units selected (Fig
11.2).
Units indicator
Fig 11.2 - Apparent
wind speed
➞ See also note above regarding true wind speed information.
➞ For more information see the Units calibration function
section 12.1.
11.4 High wind alarm
Wind
LIGHT
WIND
ALARM
TRUE
APP
INFO
Fig 11.3 - Wind alarm
The Analogue Wind instrument features an alarm that can be
set to sound, if the wind speed goes above a specified value.
Press the WIND ALARM key. The display will show “ALM”
briefly, then change to the current wind alarm setting (Fig 11.3).
Two icons ( and ) appear at the bottom of the display –
these correspond with the WIND ALARM and TRUE/APP
keys, indicating that pressing WIND ALARM will decrease the
setting, and pressing TRUE/APP will increase it.
The LIGHT and INFO keys also have icons printed on the
fascia above them ( and respectively) – pressing
(LIGHT) will cancel or abort an entry and (INFO) will
confirm or accept it.
Press the
or
required setting.
key to adjust the wind alarm value to the
Press to turn the alarm off. Press
the main display.
Note
to confirm and return to
If no other key is pressed within 5 seconds, the display will exit
to the default display and any changes will be ignored.
If the alarm sounds, pressing WIND ALARM will cancel it.
11.5 True wind angle & wind speed
The Analogue Wind instrument can also show true wind angle
and wind speed information, but boat speed information will be
required in order for this to be calculated, which can be supplied
by an IS12 Speed Log or Combi instrument (see Fig 11.4, p. 43).
When boat speed data is supplied to the Analogue Wind
instrument, pressing the TRUE/APP keys will toggle
between the Apparent Wind Angle/Speed and the True Wind
Angle/Speed display.
42
E04820 Issue 1.0
Instruction Manual
Speed Log/Combi
Analogue Wind
Masthead
Transducer
Speed
Transducer
Fig 11.4 - Minimum IS12 system for true wind data
The arrow on the LCD display will point to either APP or TRUE
indicating which type of data is currently being displayed (Fig 11.5).
True Wind
mode
Apparent
Wind mode
LIGHT
WIND
ALARM
TRUE
APP
INFO
Wind
Fig 11.5 - Wind mode indicators
11.6 Digital close-hauled display
The Wind Angle can also be displayed digitally – pressing the
INFO key switches between the Wind Speed and close-hauled
Wind Angle digital displays.
When showing the close-hauled wind angle, 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 (Fig 11.7). When running,
the digits show the wind angle measured from the stern,
indicating how close the boat is to gybing (Fig 11.8).
Close hauled, port tack
Close hauled, starboard tack
Fig 11.7 - Wind direction indicator – Close hauled
Running, port tack
Running, starboard tack
Fig 11.8 - Wind direction indicator – Running
When boat speed data is being received (see section 11.5),
pressing TRUE/APP will switch the digital display between
apparent and true wind angle.
E04820 Issue 1.0
43
IS12 Instrument System • Part V – IS12 Wind Speed/Angle
11.7 Backlighting
The backlighting illuminates the display and the keys, with five
levels of brightness.
WIND
ALARM
LIGHT
TRUE
APP
INFO
Fig 11.9 - Turning
backlighting on
Note
To switch the backlighting on, press the LIGHT key. The
display will illuminate and the digital display will show the
current lighting level (Fig 11.9).
Two icons will be shown on the bottom line of the display (
and
), corresponding to the WIND ALARM and TRUE/APP
keys. Press
to increase the brightness (max 5), or
to
de-crease it (min 1),
(INFO) to confirm the selected
brightness or
(LIGHT) to turn the backlighting off.
While the backlighting is on, the lamp icon (
on the bottom left of the display.
) will be shown
Wind
➞ The backlighting can either be Local or Network controlled.
Local control means that any adjustments to lighting will only
affect this specific instrument. With Network control, all
instruments in the network will be affected. (See section 12.5
for more details.)
12 CALIBRATION
LIGHT
WIND
ALARM
TRUE
APP
INFO
To protect the calibration functions, these are held in a hidden
menu. To enter Calibration mode, press and hold the LIGHT
key. The digital display will show “CAL” briefly, then change
to “UNIT” (Fig 12.1).
Once in Calibration mode, pressing the
(WIND ALARM)
or
(TRUE/APP) keys will cycle through the available
calibration options:
Fig 12.1 - Entering
Calibration mode
• Selecting Units (section 12.1)
• Fore/Aft transducer mounting (section 12.2)
• Wind angle offset (section 12.3)
• Configuring the IS12 Wind on SimNet (section 12.4)
• Local/Network backlighting (section 12.5)
• Disabling remote control facility (section 24.1)
• Shop mode (section 27.2)
Note
44
To exit Calibration mode at any point, press and hold
(LIGHT).
E04820 Issue 1.0
Instruction Manual
12.1 Selecting units
LIGHT
TRUE
APP
WIND
ALARM
INFO
Enter Calibration mode and press (INFO). The wind speed
units can then be selected (knots, meters/sec, miles per hour, or
Beaufort) by pressing the
or
keys (Fig 12.2).
or
Fig 12.2 - Selecting units
Press
(INFO) to set the selected wind units.
12.2 Transducer orientation
LIGHT
TRUE
APP
WIND
ALARM
INFO
For some installations, it may be necessary to mount the
masthead transducer facing aft, rather than forward as is usual.
If this is the case, the following procedure should be followed
to avoid the displayed wind angle being 180° out.
Enter Calibration mode, press
“ADJ”) and press (INFO).
LIGHT
WIND
ALARM
TRUE
APP
INFO
The display will show “FORE”, indicating that the Analogue
Wind instrument is calibrated for the standard masthead
installation. Press , and the display will change to “AFT”
(Fig 12.3).
Wind
Fig 12.3 - Adjusting
transducer orientation
once (the display will show
Press to confirm – the Analogue Wind instrument is now
calibrated for an aft-mounted masthead transducer. The display
will then return to the main Calibration menu.
12.3 Wind angle offset
LIGHT
TRUE
APP
WIND
ALARM
INFO
or
Fig 12.4 - Entering wind
angle offset
If the masthead transducer has not been fitted so that it is
pointing precisely fore - aft, it will be necessary to adjust the
displayed wind angle so that it is correct.
Enter Calibration mode, press
twice (the display will show
“OFST”; Fig 12.4) and press (INFO).
The display will show the current wind angle as read from the
masthead transducer. Use the
and
keys to adjust the
displayed angle to compensate for the mounting error, until
the displayed wind angle is correct.
Press to confirm – the Analogue Wind display is now
calibrated and the display will return to the main Calibration
menu.
12.4 Configuring the IS12 Wind on SimNet
The Wind instrument can be configured to work with SimNet capable data sources in two different ways:
E04820 Issue 1.0
45
IS12 Instrument System • Part V – IS12 Wind Speed/Angle
System mode – In this mode the Wind data source for the Wind
instrument can be configured by remote devices that
have SimNet device configuration (such as SimNet
Chartplotters) and which are capable of commanding
the Simrad group.
StandAlone mode – This mode allows the Wind instrument to
automatically select its own Wind data source and
cannot be configured by a remote device. Therefore,
the Wind instrument will be locked to the same Wind
data source, until a change of SimNet mode or a
mode reset occurs.
Wind
The default mode is System mode. To check the mode at any
time, enter Calibration (for details see section 14) and press
to scroll through the calibration pages, until the display
indicates the mode, showing either “SYST” (System mode) or
“S-A” (StandAlone mode).
To ensure that the Wind instrument can lock on to the desired
Wind data source, the SimNet mode needs to be reset. This will
only need to be done once during installation, unless a change
of configuration, or a new selection of Wind data source is
required.
1. Choose a SimNet mode
System mode – In this mode the Wind instrument
automatically selects its own Wind data source, but
can be reconfigured by a remote device (i.e. a SimNet
Chartplotter), which is capable of commanding the
Simrad group.
StandAlone mode – This is where the Wind instrument
automatically selects its own Wind data source and is not
able to be reconfigured by a remote device. The Wind
instrument will be locked on to the same Wind data
source until a manual change of SimNet mode occurs.
2. Choose a Wind data source
When a System or StandAlone reset is actioned, the Wind
instrument starts to automatically look for and lock onto a
Wind data source. If a particular data source is required for
selection, then this must be the only data source of its type
on the SimNet bus. To do this, remove all multiple sources
46
E04820 Issue 1.0
Instruction Manual
LIGHT
WIND
ALARM
TRUE
APP
INFO
Fig 12.5 System mode
LIGHT
WIND
ALARM
TRUE
APP
INFO
Fig 12.6 StandAlone mode
Note
from the bus, just leaving the single data source that is
required.
3. Start the autoselection process
If System mode is required, then the Wind instrument must be
powered up with the right-hand key (INFO) pressed. Making
this selection will reset the data sources of all other IS12 repeater
displays in System mode (Fig 12.5).
If StandAlone mode is required, then the Wind instrument
must be powered up with the left-hand key (LIGHTS) pressed
(Fig 12.6). This selection will not reset any other IS12 data
sources.
Changing the mode (or even reselecting the same mode) will
reset any data source selection the Wind instrument was
previously locked on to.
The backlighting can either be local or network controlled. Local
control means that any adjustments to lighting will only affect
this specific instrument. With network control, all instruments in
the network will be affected.
Note
The IS12 instruments are set to network lighting by default.
To enter Calibration mode, press
will show “LIGHT”) followed by
three times (the display
(INFO).
The digital display will show the current setting – “NET” for
network or “LOC” for local. The setting can be changed using
the
or
key. To set the selected backlighting mode, press
the key. The display will then return to the main menu.
Note
Press
Note
Any changes will affect the specific instrument only.
to exit to the main Calibration menu at any point.
13 INSTALLATION
Refer to Part X
E04820 Issue 1.0
47
Wind
12.5 Local/Network backlighting
Instruction Manual
Part VI
IS12 COMPASS
14 OPERATION
14.1 General
The IS12 Compass features both analogue and digital displays of
the current boat heading in either True or Magnetic. You also
have the ability to lock the compass to display course
deviation.The IS12 compass also has large buttons for ease of
use and a dimmable backlit display for night sailing.
14.2 Compass display
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 (see
section 15.5). After one second the display will change to show
the heading (Fig 14.1).
Compass
LIGHT
LOCK
Fig 14.1 - Analogue Compass display
14.3 Compass lock mode
Compass lock mode allows the current heading to be set as the
course to steer, with the display indicating the course deviation.
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.
Fig 14.2 - Compass
lock mode
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 20° (Fig 14.2).
The locked heading can be manually adjusted at any time by
pressing the
and
keys.
To exit Compass lock mode and return to normal compass
operation, press LOCK.
E04820 Issue 1.0
49
IS12 Instrument System • Part VI – IS12 Compass
14.4 Backlighting
The backlighting illuminates the display and the keys, with five
levels of brightness.
LIGHT
LOCK
Fig 14.4 - Turning
Backlighting On
To switch the backlighting on, press the LIGHT key. The
display will illuminate and the digital display will show the
current lighting level (Fig 14.4) Press
to increase the brightness (max 5),
to decrease
it (min 1), (LOCK) to confirm the selected brightness or
(LIGHT) to turn the backlighting off.
Compass
The backlighting can either be Local or Network controlled.
Local control means that any adjustments to lighting will
only affect this specific display. With Network control, all
instruments in the network will be affected. See Section 15.8
for more details.
15 CALIBRATION
LIGHT
LOCK
To protect the calibration functions, these are held in a hidden
menu. To enter Calibration mode, press and hold the LIGHT
key. The digital display will show “CAL” briefly, then change
to “DPG” (Fig 15.1).
Once in Calibration mode, pressing the
or
cycle through the available calibration options:
Fig 15.1 - Entering
Calibration mode
Note
50
key will
• Damping (section 15.1)
• Adjusting transducer orientation (section 15.2)
• Compass Angle Offset (section 15.3)
• Auto Calibration (section 15.4)
• Magnetic/True heading (section 15.5)
• Magnetic variation (section 15.6)
• Local/network backlighting (section 15.8)
• Disabling remote control facility (section 24.1)
To exit Calibration mode at any point, press and hold
(LIGHT).
E04820 Issue 1.0
Instruction Manual
15.1 Damping
The damping function adjusts the update rate of the displayed
data. 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. The damping level set affects the
analogue and digital readouts in both standard compass heading
and locked heading modes.
LIGHT
LOCK
Fig 15.2 - Adjusting
the damping level
Enter Calibration mode (the display will show “DPG”) and
press (LOCK). The damping level can be adjusted using the
or
key (Fig 15.2).
To set the selected damping level, press
return to the main Calibration menu.
Note
. The display will then
The damping setting is stored locally in the display head, so in
a system with more than one compass display it will be necessary
to set the damping on each head.
The Compass transducer can be mounted pointing four different
ways: 0°, 90°, 180° or 270° to the bow (see Fig 15.3, ). The
factory preset is 0° (pointing forward). If the compass is
mounted pointing any other way, this must be programmed in
using an IS12 Compass display head (part no. IS12
Compass:R).
BOW
0º
270º
BULKHEAD
90º
180º
Fig 15.3 - Compass orientation
Enter Calibration mode, press
once to select “ADJ” and
press . The display will show the current offset. Press the
key to adjust the offset in 90° steps to port. Press
to
adjust the offset in 90° steps to starboard: 90°, 180° and 270°.
Press (LOCK) to set the selected compass orientation.
E04820 Issue 1.0
51
Compass
15.2 Adjusting transducer orientation
IS12 Instrument System • Part VI – IS12 Compass
15.3 Compass angle offset
LIGHT
LOCK
Fig 15.4 - Entering
compass angle offset
Note
Although the IS12 Compass is extremely accurate, once calibrated
it may be desirable to adjust the displayed heading, so that it
matches that of the ship’s compass or another piece of equipment.
For this purpose a compass angle offset can be entered.
Enter Calibration mode and press
twice to select “OFST”
and press (LOCK). The display will show the current offset
entered (factory default is 0°). Press
to offset the displayed
heading counterclockwise (1° per press), or
to offset the
heading clockwise (Fig 15.4).
The display will show “-” for an counterclockwise offset and
“+” for a clockwise offset.
Press to confirm the offset entered and return to the Calibration
mode menu.
15.4 Transducer calibration
Compass
Before using the IS12 Compass, the transducer must be
calibrated to compensate for any magnetic deviation caused
by ferrous or magnetic objects surrounding it on the boat, such
as cockpit speakers, etc.
1. With the boat motoring along slowly (2–3 knots) in calm
conditions turn the wheel to induce a slow rotation of the
boat in either direction (approx. 4°/sec).
2. Enter Calibration mode and press
three times to
select “AUTO” and press (LOCK). The display will flash
between “TURN” and “AUTO”.
3. Allow the boat to turn through a minimum of 1 1⁄4 turns
(450°) in approximately 2 minutes, during which time the
compass transducer will automatically calibrate itself.
Increase speed/rate of turn
Decrease speed/rate of turn
Fig 15.6 Increase/decrease
rate of turn
52
4. If the rate of turn is too high, the display will flash “LESS”
indicating decrease the angle of turn – turn the wheel slightly
to decrease the angle until the display flashes “TURN” and
“AUTO” again. If the rate or turn or boat speed is too slow,
the display will flash “MORE” indicating increase the angle
of turn (Fig 15.6); turn the wheel slightly to increase the
angle until the display flashes “TURN” and “AUTO” again.
E04820 Issue 1.0
Instruction Manual
If the calibration is successful, the display will show “PASS” and
sound a long beep. If the calibration has failed, the display will
show “FAIL” and sound an alarm – repeat the above procedure
following the directions carefully.
Press to save the autocalibration and return to the Calibration
mode menu.
If the compass will still not calibrate, then it is usually because
the deviation being detected is too great, which may be due to
the compass transducer being too close to a metallic or magnetic
object (the minimum safe distance is 1 m [3 ft]). Move the
transducer to a position as close to the ideal centerline
location as possible, but away the from speakers, metallic
superstructure, etc. Repeat the above procedure.
Note
This should only need to be done once when the transducer is
first installed, unless the transducer is changed, repaired, relocated,
or where any metallic objects have been installed or removed
near to the transducer since it was calibrated. In the interests of
accurate performance, always bear in mind the location of the
transducer when installing any metallic objects on the boat. If
in any doubt, recalibrate the compass transducer.
15.5 Magnetic/ true heading
As a default, the compass will display the magnetic heading detected
by the transducer. However, if the magnetic variation has been
entered (see section 15.6), the display can also show the true heading.
To set the display to show the true heading, enter Calibration mode
and press
four times to select “HDG” and press (LOCK).
LIGHT
LOCK
Fig 15.6 - Toggling
between displays
The display will show the currently selected display: “MAG°”for
magnetic heading, or “TRU°”for true heading (Fig 15.6).
Press
or
to confirm.
E04820 Issue 1.0
to toggle between the two options and press
53
Compass
Note
IS12 Instrument System • Part VI – IS12 Compass
15.6 Magnetic variation
In order to be able to display the true heading (see section 15.5),
it is necessary to enter the local magnetic variation, which
is shown on charts of the area and is expressed as a number
of de-grees east or west of the magnetic heading.
To set the display to show the true heading, enter Calibration
mode and press
four times to select “M:VAR” and press
(LOCK). The display will show the current magnetic variation
entered (factory default is 0°).
LIGHT
LOCK
Compass
Fig 15.7 - Entering the
local magnetic variation
Press
to enter an westerly variation (1° per press), or
to enter an easterly variation (Fig 15.7). Press to confirm the
variation entered and return to the main Calibration menu.
Note
As the local magnetic variation differs from region to region
due to fluctuations in the earth’s magnetic field it is important
to check the local variation as shown on charts during longer
voyages and adjust this setting if required.
Note
If the Compass instrument is using an NMEA input to provide
the heading information, the variation is automatically supplied
and is displayed here, but is not adjustable.
15.7 Configuring the IS12 Compass on SimNet
The Compass instrument can be configured to work with
SimNet-capable data sources in two different ways:
System mode – In this mode the heading data source for the
Compass instrument can be configured by remote
devices that have SimNet device configuration (such as
SimNet Chartplotters) and are capable of commanding
the Simrad group.
StandAlone mode – This mode allows the Compass instrument
to automatically select its own heading data source and
cannot be configured by a remote device. Therefore,
the Compass instrument will be locked to the same
heading data source, until a change of SimNet mode or
a mode reset occurs.
The default mode is System mode. To check the mode at any
time, enter the Calibration mode (see section 5 for details) and
press to scroll through the calibration pages, until the display
indicates the mode by showing “SYST” (System mode) or
“S-A” (StandAlone mode).
54
E04820 Issue 1.0
Instruction Manual
To ensure that the Compass instrument can lock on to the
desired heading data source, the SimNet mode needs to be
reset. This will only need to be done once during installation,
unless a change of configuration, or a new heading data source
is re-quired.
1. Choose a SimNet mode
System mode – In this mode the Compass instrument
automatically selects its own heading data source,
but can be reconfigured by a remote device (i.e. a
Sim-Net chartplotter), which is capable of commanding
the Simrad group.
StandAlone mode – this is where the Compass instrument
automatically selects its own heading data source
and is not able to be reconfigured by a remote
device, only manually.
LIGHT
LOCK
Fig 15.8 - System mode
LIGHT
LOCK
Fig 15.9 StandAlone mode
Note
3. Start the autoselection process
If System mode is required, then the Compass instrument must
be powered up with the right-hand key (LOCK) pressed.
Making this selection will reset the data sources of all other
IS12 repeater displays in System mode (Fig 15.8).
If StandAlone mode is required, then the Compass instrument
must be powered up with the left-hand key (LIGHTS) pressed.
Note that this selection will not reset any other IS12 data
sources (Fig 15.9).
Changing the mode (or even reselecting the same mode) will
reset any data source selection the Compass instrument was
previously locked on to.
15.8 Local/Network backlighting
The backlighting can either be local or network controlled. Local
control means that any adjustments to lighting will only affect
this specific instrument. With network control, all instruments in
the network will be affected.
Note
E04820 Issue 1.0
The IS12 instruments are set to network lighting by default.
55
Compass
2. Choose a heading data source
When a System or StandAlone reset is actioned, the Compass
instrument starts to automatically look for and lock onto a
heading data source. If a particular data source is required for
selection, then this must be the only data source of its type on
the SimNet bus. To do this, remove any multiple sources from
the bus, just leaving the single data source that is required.
IS12 Instrument System • Part III – IS12 Compass
To enter Calibration mode, press
three times (the display
will show “LIGHT”) and press (LOCK).
The digital display will show the current setting: “NET” for
network or “LOC’ for local backlighting. The setting can be
changed using the
and
keys. To set the selected
backlighting mode, press . The display will then return to the
main menu.
Note
Press
Note
Any changes will affect the specific instrument only.
to exit to the main Calibration menu at any point.
16 INSTALLATION
Compass
Refer to Part X
56
E04820 Issue 1.0
Instruction Manual
Part VII
IS12 DATA
17 OPERATION
17.1 General
The IS12 Data is designed to repeat data from any IS12 or Sim-Net
navigation unit that is part of the installation.
DATA
LIGHT
PAGE
UPPER
INFO
LOWER
INFO
Fig 17.1 - IS12 Data Repeater
The top and bottom lines of the display can be individually
selected using the UPPER INFO and LOWER INFO keys,
and there are also four preset data pages available by pressing
the PAGE key, which can be adjusted by the user, allowing
commonly used instrument data to be easily displayed.
Note
As this unit is a data repeater, no control or calibration
functions are available. To adjust any settings (e.g., depth
alarms), or activate any functions (e.g., race countdown timer),
use the relevant master unit.
17.2 Upper Info display
To choose the data displayed on the top line of the Data, press
the UPPER INFO key. Repeatedly pressing the UPPER INFO
E04820 Issue 1.0
57
Data
The example above, (Fig 17.1) shows the apparent wind speed
and angle, available if an IS12 Wind transducer is part of the
system. Data will only be displayed if the relevant master unit is
also part of the system (IS12 Speed, Depth, Wind, Compass, etc).
If the relevant master unit is not available, the display will show
“– – –”.
IS12 Instrument System • Part VII – IS12 Data
key will cycle through the available data:
Depth ¬
Shallow Alarm Setting ¬
Deep Alarm Setting ¬
Apparent Wind Angle ¬
True Wind Angle ¬
Compass Bearing ¬
Bearing To Waypoint (BTW) ¬
Course Over Ground (COG) ¬
Lat/Long ¬
Note
The Lat/Long display will fill both the top and bottom lines of
the display. In order to display both the Latitude and Longitude,
the display will switch between Lat and Long automatically if this
is selected (Fig 17.2).
DATA
LIGHT
PAGE
UPPER
INFO
DATA
LOWER
INFO
LIGHT
PAGE
UPPER
INFO
LOWER
INFO
Fig 17.2 - Lat/Long display
17.3 Lower Info display
Data
To choose the data displayed on the bottom line of the Data,
press the LOWER INFO key. Repeatedly pressing the
LOWER INFO key will cycle through the available data:
Boat Speed ¬
Log ¬
Trip ¬
Water Temp ¬
Average Speed ¬
Max Speed ¬
Race Countdown/Elapsed Timer ¬
Apparent Wind Speed ¬
True Wind Speed ¬
Wind Speed Alarm Setting ¬
Rudder Angle ¬
Speed Over Ground (SOG) ¬
Cross Track Error (XTE) ¬
17.4 Page display
The Data instrument includes four programmable display
pages, allowing important or commonly used data to be easily
accessible.
58
E04820 Issue 1.0
Instruction Manual
To cycle through the four pages, press the PAGE key repeatedly
(Fig 17.3). If the IS12 system is switched off, the previously
selected page will be displayed on power up.
DATA
LIGHT
PAGE
UPPER
INFO
DATA
LOWER
INFO
LIGHT
DATA
LIGHT
PAGE
UPPER
INFO
PAGE
UPPER
INFO
LOWER
INFO
DATA
LOWER
INFO
LIGHT
PAGE
UPPER
INFO
LOWER
INFO
Fig 17.3 - Examples of page displays
➞ To configure the page layouts, please refer to section 18.1.
17.5 NMEA sentences
The following data sentences are output by the Data unit:
Note
Data
DBT
DPT
HDG
MTW
MWV
VHW
Depth below transducer
Depth below transducer & offset
Magnetic Heading inc Deviation & Variation
Water Temperature (ºC)
Wind Speed & Angle
Boat Speed & Magnetic Heading
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.
17.6 Backlighting
The backlighting illuminates the display and the keys with five
levels of brightness.
DATA
LIGHT
PAGE
UPPER
INFO
LOWER
INFO
Fig 17.4 - Adjusting
backlighting
E04820 Issue 1.0
To switch the backlighting on, press the LIGHT key. The display
will illuminate and the large digits will show the current lighting
level (Fig 17.4). Press the (UPPER INFO) key to increase
the brightness (max 5), (PAGE) to decrease it (min 1),
(LOWER INFO) to accept the selected brightness or (LIGHT)
to turn the backlighting off.
59
IS12 Instrument System • Part VII – IS12 Data
Note
While the backlighting is on, the lamp icon (
on the bottom left of the display.
) will be shown
The backlighting can either be Local or Network controlled. Local
control means that any adjustments to lighting will only affect
this specific instrument. With Network control, all instruments
in the network will be affected (see section 18.3 for more
details).
18 CALIBRATION
LIGHT
PAGE
UPPER
INFO
LOWER
INFO
Fig 18.1 - 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 (Fig 18.1). The display will show “CAL PAGE”.
In Calibration mode pressing the (PAGE) and (UPPER
INFO) keys will cycle through the available calibration options:
• Page configuration (section 18.1)
• Configuring the IS12 Data on SimNet (section 18.2)
• Local/Network backlighting (section 18.3)
• Disabling remote control facility (section 24.1)
Data
Note
To exit Calibration mode at any point, press and hold
(LIGHT).
18.1 Page configuration
Enter Calibration mode and press (LOWER INFO). The
layout of the four page displays can then be changed:
• Press PAGE ( ) to cycle through the four pages and select
the page to be amended.
• Press LOWER INFO ( ) to cycle through the available
data on the bottom line of the display.
• Press UPPER INFO ( ) to cycle through the available data
on the top line of the display.
Note
If a new data item is selected (which is different from the original
page setting), the digits will flash.
Press PAGE ( ) to set the layout of Page 1 and move on to Page
2. Repeat the procedure as described for each of the four pages.
60
E04820 Issue 1.0
Instruction Manual
Upper Info data options :
Depth ¬
Shallow Alarm Setting ¬
Deep Alarm Setting ¬
Apparent Wind Angle ¬
True Wind Angle ¬
Compass Bearing ¬
Bearing To Waypoint (BTW) ¬
Course Over Ground (COG) ¬
Lat/Long ¬
Lower Info data options :
Boat Speed ¬
Log ¬
Trip ¬
Water Temp ¬
Average Speed ¬
Max Speed ¬
Race Countdown / Elapsed Timer ¬
Apparent Wind Speed ¬
True Wind Speed ¬
Wind Speed Alarm Setting ¬
Rudder Angle ¬
Speed Over Ground (SOG) ¬
Cross Track Error (XTE) ¬
Note
If selecting Lat and Long as a page display (use the UPPER
INFO key), this will fill both the top and bottom lines of the
page simultaneously.
18.2 Configuring the IS12 Data on SimNet
The Data instrument can be configured to work with
SimNet-capable data sources in two different ways:
System mode – In this mode all the data sources for the Data
instrument can be configured by remote devices
that have inbuilt SimNet device configuration
(such as SimNet Chartplotters) and are capable of
commanding the Simrad group.
StandAlone mode – This mode allows the Data instrument
to automatically select its own data sources, it
cannot be configured by a remote device.
E04820 Issue 1.0
61
Data
Press
(LIGHT) to accept the changes and exit to the
Calibration menu.
IS12 Instrument System • Part VII – IS12 Data
Therefore, the Data instrument will be locked to
the same data sources, until a change of SimNet
mode or a mode reset occurs.
The default mode is System mode. To check the mode at any time,
enter Calibration mode and press to scroll through the calibration
pages until the bottom line of the display indicates the mode by
showing “SYST” (System mode) or “S-A” (Stand-Alone mode).
To ensure that the Data instrument can lock onto the desired
data sources, the SimNet mode needs to be reset. This will only
need to be done once during installation, unless a change of
configuration or a new selection of data sources are required.
1. Choose, which SimNet mode is required
System mode – In this mode the Data instrument automatically
selects its own data sources, but can be reconfigured by a
remote device (i.e. a SimNet Chartplotter), which is capable
of commanding the Simrad group.
StandAlone mode – In this mode the Data instrument
automatically selects its own data sources and cannot
be reconfigured by a remote device. The Data instrument
will be locked to the same data sources until a manual
change of SimNet mode occurs.
Data
2. Choose, which data sources are required
When a System or StandAlone reset is actioned, the Data
instrument starts to automatically look for and lock onto each
data source (i.e. Depth, Speed, Heading, etc). If a particular data
source is required for selection, then this must be the only data
source of its type on the SimNet bus. To do this, remove any
multiple sources from the bus just leaving the single data source
that is required.
DATA
LIGHT
PAGE
UPPER
INFO
LOWER
INFO
Fig 18.2 System mode
DATA
LIGHT
PAGE
UPPER
INFO
LOWER
INFO
3. Start the autoselection process
If System mode is required, then the Data instrument must be
powered up with the right-hand key (LOWER INFO) pressed.
This selection will reset the data sources of all other IS12
repeater displays in System mode (Fig 18.2).
If StandAlone mode is required, then the Data instrument
must be powered up with the left-hand key (LIGHTS) pressed
(Fig 18.3). Making this selection will not reset any other IS12
data sources.
Fig 18.3 StandAlone mode
62
E04820 Issue 1.0
Instruction Manual
➞ Changing the mode (or even reselecting the same mode) will
reset any data source selection the Data instrument was previously
locked on to.
18.3 Local/Network backlighting
The backlighting can either be local or network controlled. Local
control means that any adjustments to lighting will only affect
this specific instrument. With network control, all instruments in
the network will be affected.
Note
The IS12 instruments are set to network lighting by default.
To enter Calibration mode, press once (the display will show
“CAL LIGHT”) and press (LOWER INFO).
The top line will show the current setting: “NET” for network
or “LOC” for local backlighting. The setting can be changed
using the or key. To set the selected backlighting mode,
press . The display will then return to the main menu.
Note
Press
Note
Any changes will affect the specific instrument only.
to exit to the main Calibration menu at any point.
19 INSTALLATION
Refer to Part X
Data
E04820 Issue 1.0
63
Instruction Manual
Part VIII
IS12 MEGA
20 OPERATION
20.1 General
The IS12 Mega is a large-digit multifunction repeater that can
display data either from any IS12 master unit or other SimNet
device (Fig 20.1).
MEGA
MEGA
MEGA
IS12 SPEED
IS12 DEPTH
IS12 WIND
SIMNET CHARTPLOTTER
Fig 20.1 - Mega displays as IS12 system repeaters
NMEA
NMEA
Fig 20.2 - Mega displays as NMEA repeaters
E04820 Issue 1.0
65
Mega
The IS12 Mega will also repeat information from other
equipment via NMEA 0183 (Fig 20.2).
IS12 Instrument System • Part VIII – IS12 Mega
Press the INFO key to cycle through the data pages on the
Mega instrument (*these pages are preset to “ON”):
Boat Speed* ¬
Log ¬
Trip ¬
Water Temperature ¬
Average Speed ¬
Maximum Speed ¬
Race Start Timer ¬
Depth* ¬
Shallow Alarm Setting ¬
Deep Alarm Setting ¬
AWA* - Apparent Wind Angle (0–180°) ¬
AWA - Apparent Wind Angle (0–90° relative to bow/stern) ¬
AWS* - Apparent Wind Speed ¬
TWA - True Wind Angle (0–180°) ¬
TWA - True Wind Angle (0–90° relative to bow/stern) ¬
TWS - True Wind Speed ¬
TWD - True Wind Direction ¬
VMG - Velocity Made Good ¬
High Wind Alarm Setting ¬
MAG°* - Magnetic Compass Bearing ¬
TRUE° - True Compass Bearing ¬
COG M - Course Over Ground (Magnetic) ¬
COG T - Course Over Ground (True) ¬
SOG - Speed Over Ground ¬
BTW - Bearing To Waypoint ¬
XTE - Cross Track Error ¬
Mega
Note
Although Lat & Long cannot be displayed by the Mega, this
data is converted to IS12 format and can be displayed on any
IS12 Data display in the system.
Data will only be displayed on a page, if a master unit outputting
this information is linked to the Mega instrument. If data is not
available, the instrument will show “– – –”.
Individual data pages can be switched off, if necessary, to avoid
having to cycle through pages that have no incoming data (see
section 21.1 for further details).
20.2 Data page information
20.2.1 Calibration and settings
No control or calibration of the incoming data is possible. To adjust
any settings (e.g., depth alarms), or activate any functions (e.g.
race countdown timer), use the relevant master unit.
66
E04820 Issue 1.0
Instruction Manual
20.2.2 Display units
The units of measurement used on the data pages are dictated
by the incoming data – to change most, select the required
display units on the master unit. For depth however, units are
selectable in either merters or feet (see section 21.5 for more
details)
20.2.3 Information required
Several of the data pages require information from two or more
sources in order to process the data sentence – for example, to
calculate true wind data, both wind and boat speed information
are required.
MEGA
➞ Please refer to section 21.3 for full details of the incoming
information required for each data page.
20.2.4 Cancelling alarms
LIGHT
•
•
INFO
Fig 20.3 - Alarm display
Note
If an alarm is triggered by a master unit, the Mega will switch
to the relevant data page. The alarm will sound on the Mega
and the alarm icon and top line of the display will flash (Fig
20.3). To cancel the alarm, press any key.
Any alarms originating from an IS12 master unit will be muted
after 15 seconds, but if the incoming information still exceeds
the alarm setting threshold, the alarm will be triggered every
30 seconds until canceled.
20.2.5 Apparent & true wind angle
There are two display options for each of the above pieces of
data.
• The second option shows the wind angle as 0–90°, relative
to the bow or stern of the boat (Fig 20.4b).
MEGA
a)
LIGHT
•
•
MEGA
INFO
b)
LIGHT
•
•
INFO
Fig 20.4 - a) “Full” wind angle display; b) “Close-hauled” wind
angle display
E04820 Issue 1.0
67
Mega
• The first is a standard 0–180° display, which shows the wind
angle relative to the boat and the current tack (Fig 20.4a).
IS12 Instrument System • Part VIII – IS12 Mega
When showing the close-hauled wind angle, 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 (Fig 20.5).
Close hauled, port tack
Close hauled, starboard tack
Fig 20.5 - Wind direction indicator - Close hauled
When running, the digits show the wind angle measured from
the stern, indicating how close the boat is to gybing (Fig 20.6).
Running, port tack
Running, starboard tack
Fig 20.6 - Wind direction indicator - Running
MEGA
VMG close hauled
(Upwind)
Mega
MEGA
VMG running
(Downwind)
Fig 20.7 - VMG
display
20.2.6 VMG (Velocity Made Good)
The VMG page is generated by the Mega itself. For this information
to be generated Boat Speed, Apparent Wind Angle, and Apparent
Wind Speed data are required.
The top line of the display will show “VMG” when close hauled
and flashes “-VMG-” when running downwind (Fig 20.7).
20.2.7 XTE (Cross Track Error)
The Cross Track Error (XTE) is the amount of deviation from
the ideal track to the target waypoint displayed as a distance
from the track.
The arrow on the top line of the display indicates the direction
of the error from the track (Fig 20.8).
WPT 2
0.41Nm
MEGA
WPT 1
Fig 20.8 - XTE display
68
E04820 Issue 1.0
Instruction Manual
20.3 Backlighting
The backlighting illuminates the display and the keys, with five
levels of brightness.
To switch the backlighting on, press the LIGHT key. The
display will illuminate and the large digits will show the
current lighting level (Fig 20.9).
LIGHT
•
•
INFO
Fig 20.9 - Turning
backlighting on
Note
Press the (• RIGHT) key to increase the brightness (max 5),
(• LEFT) to decrease it (min 1), (INFO) to accept the
selected brightness, or (LIGHT) to turn the backlighting off.
While the backlighting is on, the lamp icon (
on the bottom left of the display.
) will be shown
The backlighting can either be Local or Network controlled.
Local control means that any adjustments to lighting will only
affect this specific instrument. With Network control, all instruments
in the network will be affected (see section 21.4 for more details).
21 CALIBRATION
MEGA
LIGHT
•
•
To protect the calibration functions, these are held in a hidden
menu. To enter Calibration mode, press and hold the LIGHT
key (Fig 21.1).
INFO
Note
E04820 Issue 1.0
• Units (section 21.1)
• Page configuration (section 21.2)
• Operation modes – IS12/NMEA (section 21.3)
• Local/network backlighting (section 21.4)
• Disabling remote control facility (section 24.1)
• Configuring the IS12 Mega on SimNet (section 21.5)
To exit Calibration mode at any point, press and hold
(LIGHT).
69
Mega
Fig 21.1 - Entering
Calibration mode
Once in Calibration mode, pressing the (• LEFT) and
(• RIGHT) keys will cycle through the available calibration
options:
IS12 Instrument System • Part VIII – IS12 Mega
21.1 Units
The depth units are selectable as meters or feet.
Enter calibration mode and cycle through the options until
“UNITS” is displayed and press (INFO). The current unit
will be shown. To toggle between meters (M) and feet (FT)
press the or key. Press to accept and return to the
calibration menu.
21.2 Page configuration
To avoid having to scroll through data pages that have no incoming
information, or to set the Mega to display only selected
information available, individual data pages can be disabled
using this function.
MEGA
LIGHT
•
•
INFO
Fig 21.2 - Page
configuration status
Enter Calibration mode - the display will show “PAGES CA” and press (INFO). The current data page and its display
status will be shown (Fig 21.2). “ON” indicates that this data
page is currently enabled. To scroll through the data pages and
view their configuration status, press the and keys.
To toggle this page “ON”/“OFF”, press INFO. With the page
disabled, it will not be displayed when scrolling through the
data pages.
Press to advance to the following data page. Press LIGHT to
accept the changes and exit to the Calibration menu.
21.3 Operation modes
Mega
There are two modes of operation for the Mega instrument
depending on the installation and equipment it is to be used
alongside.
21.3.1 IS12 mode (Mode 1)
This function allows the Mega to be used as part of an IS12
instrument system. In this mode, the Mega will display the
following data:
• IS12 data present on the system
• Processed* navigational data via the IS12 network
• Incoming navigational data via NMEA 0183
* i.e. any nav data received and converted to IS12 data format
by another piece of equipment on the network.
70
E04820 Issue 1.0
Instruction Manual
Note
Note
In this mode, any third-party navigational master units connected
to the Mega via the NMEA In terminals will be repeated by the
Mega display and this data will then be passed onto the IS12
network. Incoming NMEA instrument data (i.e. speed, depth,
wind, etc.) cannot be displayed.
Only one instrument can receive NMEA data in an IS12
instrument system.
If the same item of data is already available on the IS12 network
then the incoming NMEA sentence is not processed – IS12
network data always takes precedence over NMEA data.
The NMEA Out terminals will transmit the following data:
• IS12 instrument data.
IS12
Instrument data
& converted
nav data
NMEA In
Nav data
NMEA Out
Instrument data
Mega
Fig 21.3 - Installation example: IS12 mode
21.3.2 NMEA mode (Mode 2)
This mode should be selected, if the Mega instrument is to be
used as an NMEA data repeater with no IS12 master units. In
this mode, the Mega will display the following data:
• NMEA 0183 instrument data
• NMEA 0183 navigational data
In this mode only the NMEA terminals are used to link the Mega
E04820 Issue 1.0
71
IS12 Instrument System • Part VIII – IS12 Mega
to any master units – the network ports are only used to supply
power to the display. No data is received or transmitted to any
IS12 units connected to the Mega via the network ports.
The NMEA Out terminals will retransmit the following data:
• NMEA 0183 instrument data
• NMEA 0183 navigational data
NMEA Out
NMEA In
Instrument & nav data
12V in
Instrument & nav data
Fig 21.4 - Installation example: NMEA mode
Mega
To switch between IS12 & NMEA modes, enter Calibration
mode and press once (the display will show “MODE CAL”).
Press (INFO) to accept.
The large digits on the display will show “1” for IS12 mode or
“2” for NMEA mode. Press or to change modes, then
to accept and return to the Calibration menu.
21.3.3 Data required
This section details the equipment/incoming NMEA data
re-quired for each data page to function:
• Boat Speed
Mode 1 - An IS12 Speed or Combi instrument
Mode 2 - VHW
• Log
Mode 1 only - An IS12 Speed or Combi instrument
• Trip
Mode 1 only - An IS12 Speed or Combi instrument
• Water Temperature
Mode 1 - An IS12 Speed or Combi instrument
Mode 2 - MTW
72
E04820 Issue 1.0
Instruction Manual
• Average Speed
Mode 1 only - An IS12 Speed or Combi instrument
• Maximum Speed
Mode 1 only - An IS12 Speed or Combi instrument
• Race Start Timer
Mode 1 only - An IS12 Speed or Combi instrument
• Depth
Mode 1 - An IS12 Depth or Combi instrument
Mode 2 - DPT or DBT
• Shallow Alarm Setting
Mode 1 only - An IS12 Depth or Combi instrument
• Deep Alarm Setting
Mode 1 only - An IS12 Depth or Combi instrument
• AWA - Apparent Wind Angle
Mode 1 - An IS12 Wind transducer
Mode 2 - VWR or MWV
• AWS - Apparent Wind Speed
Mode 1 - An IS12 Wind transducer
Mode 2 - VWR or MWV
• TWA - True Wind Angle
Mode 1 - IS12 Speed or Combi, plus Wind transducer
Mode 2 - VWR & VHW, MWV (R) & VHW or MWV(T)
• TWS - True Wind Speed
Mode 1 - IS12 Speed or Combi, plus Wind transducer
Mode 2 - VWR & VHW, MWV (R) & VHW or MWV(T)
• TWD - True Wind Direction
Mode 1 - IS12 Wind and Compass transducers
Mode 2 - HDG plus - VWR & VHW, MWV(R) & VHW or MWV(T)
• VMG - Velocity Made Good
Mode 1 - IS12 Speed or Combi, plus Wind transducer
Mode 2 - VHW plus - VWR or MWV(R)
• High Wind Alarm Setting
Mode 1 only - An IS12 Wind transducer & instrument
Mega
• MAG° - Magnetic Compass Bearing
Mode 1 - An IS12 Compass transducer
Mode 2 - HDG or VHW
• TRUE° - True Compass Bearing
Mode 1 - An IS12 Compass transducer & instrument
with magnetic variation data entered
Mode 2 - HDG or VHW (with magnetic variation data
entered in master unit)
• COG M - Course Over Ground (Mag)
Mode 1 - An IS12-compatible GPS/chartplotter or VTG
Mode 2 - VTG
• COG T - Course Over Ground (True)
Mode 1 - An IS12-compatible GPS/chartplotter with magnetic
variation data entered or VTG, RMA, or RMC
Mode 2 - VTG, RMA, or RMC
• SOG - Speed Over Ground
Mode 1 - An IS12-compatible GPS/chartplotter or VTG, RMA or
RMC
Mode 2 - VTG, RMA or RMC
• BTW - Bearing To Waypoint
Mode 1 - An IS12-compatible GPS/chartplotter or BWR or BWC
Mode 2 - BWR or BWC
E04820 Issue 1.0
73
IS12 Instrument System • Part VIII – IS12 Mega
• XTE - Cross Track Error
Mode 1 - An IS12-compatible GPS/chartplotter or XTE or RMB
Mode 2 - XTE or RMB
21.3.4 NMEA sentences
The following NMEA sentences are transmitted/received by the
Mega instrument:
Mode 1 (IS12 mode)
Received Data
VTG
RMA
RMB
RMC
BWR
BWC
GLL
XTE
Course over ground (mag & true), speed over ground
Speed & course over ground
Cross track error & bearing to waypoint (T)
Speed & course over ground
Bearing to waypoint (rhumb line)
Bearing to waypoint (great circle)
Geographic position (Lat/Long)
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
Mega
VHW
MTW
DPT
MWV
HDG
VTG
VWR
RMA
RMB
RMC
BWR
BWC
GLL
XTE
Boat speed & heading (mag & true)
Water temperature
Water depth incl. offset
Apparent & true wind angle & speed
Heading (mag & true)
Course over ground (mag & true), speed over ground
Apparent wind angle & speed
Speed & course over ground
Cross track error & bearing to waypoint (T)
Speed & course over ground
Bearing to waypoint (rhumb line)
Bearing to waypoint (great circle)
Geographic position (Lat/Long)
Cross track error
Transmitted
Data
In Mode 2 all NMEA data received is re-transmitted to NMEA Out.
21.4 Local/Network backlighting
The backlighting can either be local or network controlled. Local
control means that any adjustments to lighting will only affect
74
E04820 Issue 1.0
Instruction Manual
this specific instrument. With network control, all instruments in
the network will be affected.
The IS12 instruments are set to network lighting by default.
To enter Calibration mode, press once (the display will show
“LIGHT CAL”) and press (INFO).
The top line will show the current setting – “NET” for Network
or “LOC” for Local. The setting can be changed using the or
key. To set the selected backlighting modes, press . The
display will then return to the main menu.
Note
Press
Note
Any changes will affect the specific instrument only.
to exit to the main Calibration menu at any point.
21.5 Configuring the IS12 Mega on SimNet
The Mega instrument can be configured to work with SimNetcapable data sources in two different ways:
The default mode is System mode. To check the mode at any
time enter Calibration mode and press to scroll through the
calibration pages, until the top line of
the display indicates the mode by showing “SYST” (System
mode) or “S-A” (Stand-Alone mode).
To ensure that the Mega instrument can lock onto the desired
data sources, the SimNet mode needs to be reset. This will only
need to be done once during installation, unless a change of
configuration, or a new selection of data sources is required.
1. Choose, which SimNet mode is required
System mode – In this mode the Mega instrument
automatically selects its own data sources, but
can be reconfigured by a remote device (i.e. a
SimNet chartplotter), which is capable of
commanding the Simrad group.
E04820 Issue 1.0
75
Mega
System mode – In this mode all the data sources for the Mega
instrument can be configured by remote devices that have
built-in SimNet device configuration (such as SimNet
chartplotters) and which are capable of commanding the
Simrad group.
StandAlone mode – This mode allows the Mega instrument to
automatically select its own data sources and cannot be
configured by a remote device. Therefore, the Mega
instrument will be locked to the same data sources, until a
change of SimNet mode or a mode reset occurs.
IS12 Instrument System • Part VI – IS12 Mega
StandAlone mode – This is where the Mega instrument
automatically selects its own data sources and is
not able to be reconfigured by a remote device.
The Mega instrument will be locked on to the
same data sources until a manual change of
SimNet mode occurs.
MEGA
LIGHT
•
•
INFO
Fig 21.4 System mode
3. Start the autoselection process
If System mode is required, then the Mega instrument must be
powered up with the right-hand key (INFO) pressed. Making
this selection will reset the data sources of all other IS12
repeater displays in System mode (Fig 21.4).
MEGA
LIGHT
•
•
INFO
Fig 21.5 StandAlone mode
Mega
Note
2. Choose, which data sources are required
When a System or StandAlone reset is actioned, the IS12 Mega
instrument starts to automatically look for and lock onto each
data source (i.e. Depth, Speed, Heading, etc). If a particular data
source is required for selection, then this must be the only data
source of its type on the SimNet bus. To do this, remove any
multiple sources from the bus just leaving the single data source
that is required.
If StandAlone mode is required, then the Mega instrument
must be powered up with the left-hand key (LIGHTS) pressed
(Fig 21.5). This selection will not reset any other IS12 data
sources.
Changing the mode (or even reselecting the same mode)
will reset any data source selection the Mega instrument
was pre-viously locked on to.
22 INSTALLATION
Refer to Part X
76
E04820 Issue 1.0
Instruction Manual
Part IX
IS12 REMOTE CONTROL
23 OPERATION
23.1 General
The IS12 Remote Control can be used to control all the major
functions of any IS12 instrument that is on the same network,
including calibration functions. The remote also repeats all alarms.
23.2 Selecting display
Control of a specific instrument is accessed by pressing the ▼ key
on the Remote Controller. This will select the first instrument
on the network, indicated by “CTRL” flashing briefly on the
instrument display (Fig 23.1).
The unit selected can now be operated using the remote control.
To select a different instrument, press the ▼ key repeatedly to
cycle through the instruments on the network, until the required
instrument is selected.
CTRL
Large-digit display (Speed, Depth, Mega)
Remote
Two-line display (Combi, Data)
Analog display (Wind, Compass)
Note
Fig 23.1 - Indication of instrument selected by the Remote Control
If no other key is pressed after one minute, it is necessary to
press the ▼ key to reselect the instrument for remote control.
➞ In certain installations it may be preferable to disable the
remote control function on particular instruments; refer to
section 24.1 for more details.
E04820 Issue 1.0
77
IS12 Instrument System • Part IX – IS12 Remote Control
23.3 Keypad configuration
As the Remote Control is intended to control all instruments in
the IS12 range, the keypad is a generic design, which applies to
all IS12 instrument keypad layouts (Fig 23.2 indicates the
respective key positions).
Remote
Note
For installations where the instruments are rear mounted, the
keypad will not be visible; please refer to the relevant user
manual for the specific keypad layout.
Fig 23.2 - Remote control key positions
23.4 Cancelling alarms
The Remote Control will repeat any alarms sounded by the
instruments in the network. To cancel the alarm, select the
relevant instrument using the ▼ key and press the equivalent
key on the Remote Control.
➞ Refer to the individual instruments regarding key sequences
for cancelling alarms.
78
E04820 Issue 1.0
Instruction Manual
24 CALIBRATION
24.1 Disabling remote control
On some installations it may be preferable to limit remote control
access to only some instruments on the network, for example:
1. On a flybridge powerboat with a set of instruments on
both steering stations, where some of the instruments would
be out of sight of the Remote Control user (Fig 24.1).
2. On a sailboat with chart table repeaters. Some of the
instruments would be out of sight of the Remote Control
user, which would normally be positioned to control the
cockpit instruments.
3. On a sailboat with a set of mast-mounted repeaters. Since
these are more difficult to access, it may be preferable to
limit remote control to these instruments only.
Flybridge
Front-mounted instruments – no remote control required
Remote control disabled
Main Steering Station
Rear-mounted instruments – remote control required
Remote control enabled
Fig 24.1 - Typical system with partial remote control facility
It is possible to disable the remote control facility on specific
instruments, which will be “ignored” by the Remote Control.
On the instrument enter Calibration mode, press
the display shows “CTRL” and press .
or
until
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 and keys. To set the
selected mode press . The diplay will then return to the
main Calibration menu.
Note
Press
Note
Any changes will affect that specific instrument only.
E04820 Issue 1.0
to exit to the main Calibration menu at any point.
79
Remote
4. On an installation where some instruments are rear mounted
and a remote control is needed to control these only.
IS12 Instrument System • Part IX – IS12 Remote Control
24.2 Re-enabling control on rear-mounted
instruments
Once the remote control facility has been disabled on an IS12
instrument, this can normally only be re-enabled using the
instrument’s own keypad, since the Remote Controller will now
be unable to access that instrument.
In the event that the remote control facility has been accidentally
disabled on a rear-mounted instrument (where the keypad is not
accessible), 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 (Fig 24.2).
POWER OFF
POWER ON
Remote
Fig 24.2 - Overriding system remote control settings
The Remote Control will now temporarily be able to access all
instruments on the network, even those which have the remote
control facility disabled. Select the instrument which has been
incorrectly disabled and re-enable the remote control facility
through the Calibration menu.
Note
80
This procedure temporarily overrides the remote control facility
settings. If the power is then switched off and on again without
changing the remote control setting on the instrument in question
first, the instrument will revert to its previous settings.
E04820 Issue 1.0
Instruction Manual
25 INSTALLATION
25.1 Installation
The Remote Control/Alarm is supplied with a dash-mount clip
and can be used as a fixed or a handheld control unit. The cable
can either be fed directly through the hole in the dash-mount
clip, so that it is out of sight when the remote control is in the
clip, or it can be routed externally through the channel at the
bottom of the clip, then back up and through the dash clip,
which may be more convenient if using the remote control as a
handheld device (Fig 25.1).
Concealed cable (fixed mount)
Exposed cable (handheld)
Fig 25.1 - Cable routing options
Note
The channel at the bottom of the dash clip for externally routing
the cable is normally blanked off – this can be opened up using
a sharp knife or scalpel if required (Fig 25.2).
Cut out cable channel
Remote
Fig 25.2 - Dash-mount clip, bottom view – cable channel
The unit is supplied with a self-adhesive drilling template; fix
this in the required position and drill the four 2.5 mm screw
holes and the 11 mm hole for the cable if required (see Fig 25.1
above). If fixing to GRP, countersink the four screw holes to
avoid splitting the gelcoat when fitting the self-tapping screws
supplied.
Fit the dash-mount clip, feed the cable as required, and fit the
Remote Control into the clip.
E04820 Issue 1.0
81
IS12 Instrument System • Part IX – IS12 Remote Control
25.2 Electrical installation
The Remote Control is fitted with a 2 m cable with an IS12
connector fitted to the end. Simply locate a spare port in a
conveniently located instrument and plug in.
If a spare port is not available an SDJ three-way joiner, available
as a separate accessory can be added along with an additional
data cable to provide a spare port (Fig 25.3).
SDJ ThreeWay Joiner
Additional
Data Cable
Fig 25.3 - Using an SDJ three-way joiner to connect
the Remote Control to a system
25.3 Unclipping the Remote Control
Remote
To remove the Remote Control from the dash-mount clip, hold
the top of the unit and pull it out of the clip (Fig 25.4).
Fig 25.4 - Removing the remote control from the dash-mount clip
82
E04820 Issue 1.0
Instruction Manual
Part X
IS12 INSTALLATION
26 INSTRUMENT HEAD
26.1 General
All IS12 instrument heads are a standard 110 x 110 mm (4.3 x
4.3 in) size and can be mounted either from the front or the rear.
26.1.1 Front mounting
Fig 26.1 Front mounting
35mm (1.4in)
minimum
Front mounting (Fig 26.1) is the standard method of fitting and is
the most straightforward. When mounting the instrument head, it
is important to ensure that there is adequate clearance behind the
bulkhead for the rear of the instrument with the cables inserted –
allow at least 35 mm (1.4 in) clearance (Fig 26.2).
In addition, the instrument should not be fitted to a surface that
has a curve greater than 1 mm (1⁄25 in) across the mounting
area. If fixing to an uneven surface, care should be taken not to
overtighten the screws. When choosing a location, consideration
should be given to the water integrity of the gasket seal if the
surface is not flat. The IS12 is designed to be weatherproof, but
the rear of the instrument case with its electrical connections
should be protected from moisture as far as possible.
Tools required for installation:
- Drill
- 2.5 mm (0.09 in) drill bit
- 86 mm (3.4 in) hole saw - Countersinking bit
Fig 26.2 Clearance required
behind bulkhead
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.
Fig 26.3 - Fitting
keypad and bezel
E04820 Issue 1.0
The easiest way to fit the keypad and the bezel to the installed
instrument head is to locate the keypad in the keyholes in the
bezel and then offer this up to the instrument head, angling the
bezel back slightly to prevent the keypad falling out. The bezel
should click into place when located correctly (Fig 26.3).
83
Installation
Using the self-adhesive template supplied drill the central
aperture for the instrument case using the hole saw, then
the four fixing holes as indicated on the template. If the
instruments are to be fixed to a GRP bulkhead, the fixing
holes should be countersunk after drilling to stop the
screws splitting the gelcoat. The instrument is 110 mm
(4.33 in) square, but a distance of at least 6 mm (0.25 in)
should be allowed between adjacent units for the protective
instrument cover supplied.
IS12 Instrument System • Part X – IS12 Installation
To remove the bezel, simply lift the top edge of the bezel
slightly to disengage the locking clips and pull away from the
instrument head (see Fig 26.4).
Fig 26.4 - Removing the bezel
26.1.2 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. It is therefore recommended
that installation is done by a professional marine installer.
Fig 26.5 Rear mounting
The instrument can be fixed to the panel using either the
self-tapping screws supplied (if the panel is thick enough), or
2 mm studs fixed to the rear of the panel which align with
the four fixing holes. (Fig. 26.5).
Tools required for installation:
- Drill
- 5 mm (0.2 in) drill bit
- A fine toothed file
- Fretsaw
Installation
To assist in cutting a precise aperture for the display, a self- adhesive
template is supplied with the unit.
Fix the template in the correct position and drill 4x 5 mm holes
on the waste side of the four corners of the aperture. Starting
from one of these holes, carefully cut along the dotted line
around the four edges. To ensure the hole is a good fit, cut
slightly inside the line (on the waste side) and then use the file
to smoothen the edges until the display fits precisely.
Note
Because the keypad is not accessible with this method of mounting,
the Remote Control unit (see part IX) will be required to enable
control of instrument functions.
27 TRANSDUCERS
27.1 IS12 Speed/Depth transducer
Note
84
Please refer to manufacturer’s installation instructions
supplied with the transducer.
E04820 Issue 1.0
Instruction Manual
27.2 IS12 Wind transducer installation
27.2.1 Running the cable
It is easiest to run the transducer cable if the mast is stepped. If
this is not possible, all necessary precautions should be taken –
always use a bosuns chair and ensure all tools are securely
attached when working aloft.
Apply the self-adhesive template supplied to the masthead,
pointing fore–aft. Drill the fixing and cable exit holes as marked
– the masthead bracket incorporates a cable clamp to secure the
transducer cable and provide strain relief (Fig 27.1).
Cable clamp
channels
Allow 75mm (3.0") of
cable at the masthead
Gasket
MASTHEAD
Cable exit point
Mast Top Cable Exit
Fig 27.1 - Drilling exit hole for transducer cable
Note
The cable can be fed through the side of the mast if this is
more convenient.
Mast Side Cable Exit
Cut out
blanking
piece
Fig 27.2 - Cable channel
exit points
BOW
It is recommended that a grommet is used to avoid damage the
cable where it passes through the mast. Allow at least 75 mm
(3.0 in) of cable at the masthead for the transducer connection.
For boats with an aluminium mast, a channel is normally
provided inside the mast section for running electrical
cables. This will usually have a tag line or “mouse” (i.e. a
length of line running the length of the mast to assist in
pulling through cables). If not, the cable will need to be fed
down and drawn out the bottom by hand.
For boats with a wooden mast the cable can be run down the
outside of the mast held in place with galvanised cable clips.
20mm (0.78")
Fig 27.3 - Fitting the
masthead bracket
E04820 Issue 1.0
1. Route the transducer cable in the strain relief channels in
the bracket and out the back. If the cable exits through the side
of the mast, route the cable in one of the blanked off side
channels and out the back (Fig 27.2).
2. Use a sharp knife or scalpel to remove the blanking piece
and open up the channel.
3. Attach the masthead bracket with the screws provided.
Ensure the bracket is mounted the correct way round, so that
the wand will be pointing in the correct direction (Fig 27.3).
The transducer can be mounted facing aft if required, but it will
be necessary to set the transducer orientation to “AFT” in the
Calibration menu (see section 15.2 for more details).
85
Installation
35mm (1.38")
27.2.2 Fitting the masthead bracket
IS12 Instrument System • Part X – IS12 Installation
27.2.3 Assembling the transducer
The vane and cups assemblies are packed separately; fit the vane
to the transducer so that the shaft on the top of the transducer
fits correctly into the vane (the shaft is keyed so that it will be
aligned correctly). Screw the counterweight in just far enough
to lock the vane into place (Fig 27.4).
1) Fit the vane
Ensure the shaft is
oriented correctly
2) Screw in counterweight
(do not overtighten)
Fig 27.4 - Attaching the wind vane
Note
Check that the vane rotates freely – do not overtighten
the counterweight or it may restrict the vane’s movement.
The anemometer cups fit to the base of the transducer body in a
similar way (Fig 27.5). Ensure the cups are pushed fully home
on the spindle. Once fitted, they are held in place by a grub
screw, which should be tightened (using the Allen key supplied)
enough to hold the cups in place without restricting their
movement.
Note
Check that the cups rotate freely.
1) Fit the cups
2) Tighten grubscrew
Fig 27.5 - Attaching anemometer cups
Installation
27.2.4 Attaching/removing the transducer
The masthead transducer is attached to the masthead bracket
using a simple quick-release clamp system.
1. Slide the locating pegs on the rear of the transducer base
into the slots on the masthead bracket.
2. Rotate the transducer down onto the masthead bracket.
3. The transducer base will then lock into place (Fig 27.6 page 87).
Caution
86
Ensure the quick-release clip is properly engaged by
pulling it fully forward.
E04820 Issue 1.0
Instruction Manual
1
2
3
Locating
peg
Lock
Fig 27.6 - Attaching masthead transducer
Fit the transducer cable to the socket in the back of the masthead
transducer.
Note
To avoid damage, it is recommended that the masthead transducer
be taken down at the end of the season if the boat is to be laid
up or lifted out.
Simply remove the transducer cable, pull the release clip back
and lift the transducer off the masthead bracket (Fig 27.7).
Lift
1
2
Pull back
Fig 27.7 - Removing masthead transducer
Caution
To avoid corrosion of the electrical contacts, always fit
the cover supplied over the end of the masthead cable.
Note
If the boat is fitted with more than one IS12 instrument, it should
be noted that it is not necessary to plug the transducer cable
directly into the back of the instrument – any spare network port
can be used.
The compass should be positioned as close to the centerline of
the boat as possible (Fig 27.8), in one of four possible orientations.
If the boat is GRP or wooden, the compass can be mounted below
deck, but must be at least 1 m (3 ft) away from any metallic
objects such as stereo speakers, heating units, etc.
Fig 27.8 Ideal Compass
transducer location
E04820 Issue 1.0
If the boat has a metal hull (this includes ferro-cement), the
compass must be mounted on a mast or pole between 1 and 2
meters (3–7 ft) above deck.
87
Installation
27.3 Compass transducer
IS12 Instrument System • Part X – IS12 Installation
When mounting, make sure that the compass is the right way
up and is level. The compass unit can be screwed to a vertical
bulkhead using the two No. 6 x 3/4 in self-tapping screws
provided (Fig 27.9).
BOTTOM
VIEW
BOW
BOW
SIDE
VIEW
Fig 27.9 - Mounting the Compass transducer
Note
If screwing into GRP, drill pilot holes and countersink them
properly, which will stop the gelcoat splitting when the screws
are tightened.
28 ELECTRICAL
28.1 Connecting IS12 instruments
28.1.1 IS12 Combi (Depth/Speed)
Note
The screen wire of the Depth transducer should be crimped to
the same terminal as the black (BK) wire.
Installation
The transducer wires are colour coded and correspond to
the clearly marked terminals on the rear of the instrument
(Fig 28.6).
Speed -
Depth -
WH
GN
RD
SC
BR
BK Black
+Screen
BU Blue
White
Green
Red
Screen
Brown
Fig 28.6 - Combi Transducer connections
88
E04820 Issue 1.0
Instruction Manual
28.1.2 IS12 Depth
The transducer plugs directly into the back of the instrument. To assist in
feeding the cables through the boat, the transducer is supplied with bare
wire ends. The transducer wires are colour coded and correspond to the
clearly marked terminals on the rear of the instrument (Fig 28.7).
Note
The screen wire should be crimped into the same terminal as the
black (BK) wire.
BK Black
+Screen
BU Blue
Fig 28.7 - Depth transducer connections
28.1.3 IS12 Speed/Log
The transducer plugs directly into the back of the instrument.
To assist in feeding the cables through the boat, the transducer
is supplied with bare wire ends. Once the cables have been fed up
to the instrument, the transducer is connected to the instrument
using the crimp terminals supplied. The transducer wires are
colour coded and correspond to the clearly marked terminals on
the rear of the instrument (see Fig 28.8).
WH
GN
RD
SC
BR
White
Green
Red
Screen
Brown
Fig 28.8 - Speed transducer connections
28.6.4 IS12 Wind
Installation
The transducer is connected to the Wind instrument using the
spare network port on the rear of the instrument (Fig 28.9)
Fig 28.9 - Wind transducer connection
E04820 Issue 1.0
89
IS12 Instrument System • Part X – IS12 Installation
28.6.5 IS12 Compass (NMEA In)
The IS12 Compass transducer is connected to the network port.
Alternatively, heading information may be supplied from an
external source via the NMEA input. The two terminals on the
rear of the unit (see Fig 28.10,) are marked NMEA IN + (Data)
and NMEA IN - (Common). These should be connected to the
NMEA OUT connections of the interfaced equipment.
The IS12 Compass can process the following NMEA sentences:
HDG
VHW
Note
Mag heading, plus deviation and variation
Heading, Mag, and True
The Compass transducer should not be used if heading data is
being supplied via the NMEA input.
Fig 28.10 - NMEA In connections
28.1.6 IS12 Data (NMEA Out)
Installation
The Data instrument features an NMEA0183 output – the Data
instrument is interfaced to external equipment using the crimp
terminals supplied. The two terminals on the rear of the unit
(Fig 28.11) are marked NMEA OUT + (Data) and NMEA
OUT - (Common). These should be connected to the NMEA
IN connections of the interfaced equipment.
Fig 28.11 - NMEA Out connections
28.1.7 IS12 Mega
The Mega instrument features an NMEA0183 input and output,
and is interfaced to external equipment using the crimp terminals
supplied.
The two terminals on the rear of the unit marked NMEA OUT
+ (Data) and NMEA OUT - (Common) should be connected to
90
E04820 Issue 1.0
Instruction Manual
the NMEA IN connections of the interfaced equipment. The
two terminals marked NMEA IN + (Data) and NMEA IN - (Common)
should be connected to the NMEA OUT connections of the
interfaced equipment (Fig 28.12).
Fig 28.12 - Mega NMEA connections
When in IS12 mode, the Mega can receive and display incoming
navigational data via NMEA (not NMEA instrument data!) and
will output IS12 instrument data (depending on the master units
in the system).
➞ For further details of NMEA sentences received/transmitted,
see section 21.3.4.
Note
Only one instrument per IS12 system can input NMEA data.
The Mega instrument can be used as a stand-alone NMEA
repeater outputting/receiving with no IS12 master units. If
using the Mega in this way, the operation mode should be set to
NMEA Mode 2 (see section 21.3.2).
28.7 Electronic interference suppression
IS12 has been designed to minimize 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. The transducer cable should also be kept
separate from the boat’s radio antenna cable if possible.
28.8 Magnetic interference
Deviation of the main ship’s compass is caused by objects
which interfere with the earth’s magnetic field being placed in
its near proximity.
E04820 Issue 1.0
91
Installation
Engines with spark ignition—also some refrigerators—should
be fitted with suppressors. Your local agent should be able to
advise on this and supply suppression kits where necessary.
IS12 Instrument System • Part X – IS12 Installation
Normally a safe distance for instrument installation would be
30 cm (1 ft) from the ship’s main compass. For safety reasons it
is recommended that a check is carried out; temporarily situate
the working display in the proposed position to ascertain the
effect that the instrument might have on the particular ship’s
compass while in operation.
29 NETWORK
29.1 Installing an IS12 network
IS12 instruments are “daisy chained” together, with each
instrument linking to the previous one by a single cable
carrying power and data (Fig 29.1).
Fig 29.1 - IS12 “Daisy chain”
cable system
The cable plugs into either of the two circular network ports on
the rear of the instrument. The cable connectors are keyed so
that they will always be correctly oriented when inserting the
cable into the instrument – the flattened edge of the connector
should be facing down when inserting (see Fig 29.2).
Network
bus ports
Flattened edge
Fig 29.2 - 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:
Installation
Red wire 12V DC
Black wire - 0V
Note
Only one power cable is required in an IS12 system, but power
must be supplied via an IS12 power cable (with a red
connector end), or the system will not function.
29.1.2 Network termination
Fig 29.3 Network terminator
92
The IS12 system is based around a high-speed data bus network.
Although this is very robust, on very large or complex systems
with many instruments the system may need to be properly
terminated to ensure the integrity of the network. For this
purpose a network terminator (Fig 29.3) is supplied with
E04820 Issue 1.0
Instruction Manual
some IS12 instruments. The terminator simply plugs into
the last free network port in the daisychain. The terminator
only needs to be fitted under certain circumstances.
The terminator is not required if:
a) The Compass instrument is used as a stand-alone
instrument (and no other IS12 instruments are fitted).
b) There is already a terminator fitted to the system. There
should only be one terminator fitted per system.
c) The system includes an IS12 Wind transducer. The Wind
transducer has an inbuilt network terminator.
d) The total system cable length (excl. the power cable) is
less than 5 m. A small system does not require a terminator.
If the installation does not meet any of the above criteria, the
terminator should be fitted to the spare network port at the end
of the longest cable run.
Any unterminated spurs created using the SDJ three-way joiner
must be less than 5 m (16.4 ft) in length (see Fig 29.4).
Terminator fitted to
end of longest spur
Spur max cable
length 5 m
Three-way
joiner SDJ
Fig 29.4 - Creating cable spurs using SDJ three-way joiner
Fold wire
end back
Ensure bare wires
are not visible
Fig 29.5 - Crimp terminals
E04820 Issue 1.0
To ensure a good connection when fitting the terminals to the
interface cable, fold back the exposed wires over the insulation
before inserting into the terminal (Fig 28.5). Use a good quality
crimp tool to crimp the terminals.
93
Installation
Spur max cable
length 5 m
Instruction Manual
Part XI
APPENDIX
30 ADDITIONAL INFORMATION
30.1 Troubleshooting
General Symptoms
Possible cause
Remedy
No display on any heads
in the system
• Faulty connection to power
• Fuse has blown
• Check power connection
• Replace fuse and check
power supply current
No display on one or
more heads in system
• IS12 data cable loose or broken
• Check cable linked to first
faulty unit. Replace if
necessary
Occasional poor
performance
• Electrical interference from other
equipment on boat (see section 28)
• Fit interference suppressors
to equipment responsible
Display shows “– – –”
• Faulty connection to transducer
• Data sources not selected
• Check transducer connection
(see section 28)
• Reset data source
Combi and Speed Instruments
Display shows “00.0”
while boat is moving
• Faulty connection to transducer
• Impeller is fouled
• Check transducer connection
• Clean transducer
• Transducer needs calibrating
• Refer to section 15
• Wind angle offset needs calibrating
• Refer to section 12.2 & 12.3
Display shows “– – –”
• Master unit not present in system
• Faulty connection to master unit
• Data can only repeat data that
is available on the network
• Check data cable links
No NMEA output
• NMEA connections reversed
• Check NMEA connections
Display shows “– – –”
• Master unit not present in system
• Required NMEA sentence not
available
• Faulty connection to master unit
• Mega can only repeat data that
is available on the network
• Refer to section 21.2.4
• Check data cable links
No NMEA output
• NMEA connections reversed
• Check NMEA connections
Remote cannot select
instrument
• Remote control facility disabled
on instrument
• Faulty connection to master unit
• Re-enable remote control
facility on instrument (see
section 24.1)
Remote cannot select
any instrument and
double beeps
• IS12 data cable lose or broken
• Terminator not fitted
• Check cables
• Fit terminator to system
Compass Instrument
Compass is not accurate
Wind Instrument
Wind angle is not accurate
Data Instrument
Mega Instrument
Appendix
Remote controller
E04820 Issue 1.0
95
IS12 Instrument System • Part XI – IS12 Appendix
These simple checks should be carried out before seeking technical
assistance and may save time and expense. Before contacting your
servicing agent please note the unit’s serial number..
30.2 Spares & accessories
The following spares and accessories are available from local
Simrad agents.
- Three-Way Cable Joiner
- Spare Compass Transducer
- Spare Masthead Transducer
- Spare Depth Transducer
- Spare Speed Transducer
- Spare Bezel & Keypad
- Spare Sun Cover
Appendix
- Remote Controller
- Power Cable 2m
- IS12 Cable 0.3m
- IS12 Cable 2m
- IS12 Cable 5m
- IS12 Cable 10m
- IS12 Mast Cable 30m
96
E04820 Issue 1.0
Instruction Manual
110mm (4.3in)
110mm (4.3in)
30.3 Dimensions
20mm
(0.78in)
17mm
(0.67in)
17mm
(0.67in)
55mm (2.15in)
110mm (4.3in)
Remote Control/Alarm
IS12 Instrument
43mm (1.7in)
94 mm
(3.7 in)
180mm (7.0in)
66 mm
(2.6 in)
80mm (3.2in)
46 mm
(1.8 in)
440mm (17.3in)
Wind masthead
IS12 Compass
Transducer
E04820 Issue 1.0
Appendix
75mm (3.0in)
IS12 Speed Transducer
89mm (3.5in)
50mm (2.0in)
125mm (4.9in)
89mm (3.5in)
50mm (2.0in)
75mm (3.0in)
IS12 Depth Transducer
97
IS12 Instrument System • Part XI – IS12 Appendix
30.4 Specification
Supply voltage
Current consumption
Max units per system
Ambient temp range
12V (9–16V) DC
Light Off - 40mA
Light On - 60mA
32
-10°C to +55°C (14°F to 131°F)
IS12 Combi
Transducer frequency
Sounding range
Max depth resolution
Speed range
Max speed resolution
Sea temperature
200 kHz
0.6 –100 m (2–327 ft)
0.1 m / 1 ft
0–60 Kts, mph, Kmh
0.1 Kts, mph, Kmh
0–37ºC (32–99º F)
IS12 Depth
Transducer frequency
Sounding range
Max resolution
200 kHz
0.6 –100 m (2–328 ft)
0.1 m / 1 ft
IS12 Speed
Speed range
Max speed resolution
Sea temperature
0–60 Kts, mph, Kmh
0.1 Kts, mph, Kmh
0–37ºC (32–99º F)
IS12 Wind
Wind speed range
0–99.9 Kts, m/s, mph (0–12 BFT)
IS12 Compass
Max resolution
1°
30.5 Service & warranty
Your equipment should seldom need servicing, although it will
benefit from an application of silicone or Teflon grease to the
contacts each season.
If it is necessary to have a unit repaired, please contact your local
authorised Simrad dealer.
Appendix
For worldwide warranty details and a list of authorised Simrad
agents please refer to the Warranty Card supplied with this unit.
98
E04820 Issue 1.0
M A X I M I S I N G
Y O U R
P E R F O R M A N C E
A T
S E A
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising