Operation Manual

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