Simrad IS20 Combi User manual
I
S
2
0
20222584 / A Sw.1.1
English
IS20 Analog
Instrument series
MANUAL
Copyright
All rights reserved. No part of this document may be
reproduced or otherwise copied without prior written
permission of Navico Holding AS.
© 2007 by Navico Egersund AS
About this manual
This manual is a reference guide for installing and
operating the Simrad IS20 Graphic instrument.
The manual does not include operator or installation
procedures for sensors that can be connected to the
system.
In this manual, names of menu commands, dialog box
text and keys are written in boldface (e.g. Main menu,
Setup command, Left key).
Important text that requires special attention from the
reader is emphasized as follows:
Used to draw the reader’s attention to a comment or
some important information.
Used when it is necessary to warn personnel that a
risk of damage to the equipment or hazard exists if
care is not exercised.
2 | IS20 Analog instruments
Content
1 Introduction ............................................... 5
1.1 General information..................................5
1.2 Instrument layout ....................................5
1.3 IS20 system examples..............................6
2 Operation.................................................... 9
2.1 Turning the IS20 on .................................9
2.2 Backlighting .......................................... 10
2.3 Scrolling through function displays ........... 11
2.4 Using the heading lock function................ 13
2.5 Operating the menu system..................... 14
2.6 Changing the display settings .................. 16
2.7 SimNet backlight group........................... 18
2.8 Setting the damping factor ...................... 19
2.9 Power save function ............................... 19
2.10 Demo mode......................................... 20
3 IS20 Alarm system ................................... 21
3.1 Alarm indication..................................... 21
3.2 Acknowledging an alarm ......................... 22
3.3 Alarm codes .......................................... 23
4 Installation ............................................... 25
4.1 Location of the unit ................................ 25
4.2 Mechanical installation ............................ 25
4.3 Cable connection.................................... 27
IS20 Analog instruments | 3
5 Configuration............................................ 35
5.1 General ................................................ 35
5.2 No calibration function available ............... 35
5.3 IS20 Rudder.......................................... 36
5.4 IS20 Compass ....................................... 40
5.5 IS20 Wind and IS20 Tack........................ 45
6 Maintenance ............................................. 49
6.1 General maintenance.............................. 49
6.2 Resetting the instrument system .............. 49
7 Spare parts ............................................... 51
7.1 Spares and auxiliaries............................. 51
7.2 SimNet cables and accessories ................. 52
8 Specifications ........................................... 53
8.1 Technical specifications ........................... 53
8.2 Dimensional drawing .............................. 54
8.3 Menu options......................................... 55
4 | IS20 Analog instruments
1Introduction
1.1 General information
The IS20 analog instruments are a range of four
instruments that provide useful information for the boater
in a classical fashion. They are individually designed to a
particular main function such as rudder angle, compass
heading, wind angle and speed and close hauled sailing.
They are all compatible with the unique SimNet network
and can easily be mounted adjacent to each other and
interconnected in a daisy chain.
A separate NMEA0183 input port allows input from other
non-SimNet devices.
1.2 Instrument layout
Introduction | 5
The instruments are provided with a back lighted scale
and the pointer is driven by a microstep motor that gives
excellent precision and no overshoot. The LCD display
offers information complementary to the scale as well as
set-up support when installing and calibrating the
instrument.
The display may be set to red or white illumination color,
and the contrast and light level are adjustable.
The instrument is equipped
with 2 SimNet connectors
and one NMEA0183 input
(listener) connector.
Keys
The instrument is operated by 4 keys. These are used to
scroll between function displays, to adjust the light, to
operate the menu and to set parameter values.
1.3 IS20 system examples
The IS20 may be installed as a stand-alone instrument
system, or as part of an advanced instrument or steering
system on the boat.
The figures below show simplified illustrations for basic
and an expanded IS20 system.
6 | Introduction
IS20 Rudder, Basic system
IS20 Compass, Basic system
IS20 Wind or Tack, Basic system
Introduction | 7
Wind
transducer
T-joiner
Active depth
transducer
Analog
speed/temp
sensor
12V SimNet supply
Red disk
IS20 Expanded system
8 | Introduction
2Operation
It is required to read and understand the content in this
chapter. The remaining descriptions and illustrations in
this manual assumes that the user is familiar with how to
operate keys and how to navigate in the menus!
2.1 Turning the IS20 on
IS20 has no power key, and will be running as long as
power is connected.
The IS20 includes a power save function. Refer page 19.
When power is applied the LCD will
show the product name (IS20)
followed by software version.
After approximately 5 seconds the instrument is
operative.
First time start up
Before the IS20 is ready to operate, it should be
configured as described in Configuration, page 35
onwards.
Restarting the IS20 instrument
When IS20 is re-powered the display will go directly to
the last active function after the start up sequence is
finished.
Operation | 9
2.2 Backlighting
The display backlight may be adjusted at any time.
1Press the light key
−The light level will be indicated with
flashing number on the LCD
2Press one of the keys as described below to
change the display backlight:
aThe Light key to increase the light level by one
step
bThe Up/Down keys to increase/decrease the
light level by one step
3Press the Enter key to confirm the selection
and return to last active display
If no adjustment is performed within 3 seconds, the LCD
will return to last active view.
For red/white backlight color, refer to Display color,
page 17.
10 | Operation
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3
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