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Getting started
Topics
Turning on the SN90, page 51
Lowering and hoisting the transducer from the user interface, page 52
Turning off the SN90, page 53
Turning on the SN90
In order to use the SN90, you must first turn it on. To turn on the SN90 use the
button on the Operating Panel. The SN90 program starts automatically when the
Processor Unit is turned on.
Caution
You must never start SN90 transmissions (pinging) when the ship is in dry dock. The
transducer may be damaged if it transmits in open air.
A hull unit may be provided as an optional method to lower and hoist the transducer.
This task assumes that a hull unit is installed. If a hull unit is not installed you can
disregard information related to lowering and hoisting the transducer.
Procedure
1
Make sure that you have sufficient water depth below the keel before you lower
the transducer.
2
Turn on the display(s).
If required, refer to the instructions provided by the display manufacturer.
3
On the Operating Panel, press
The blue indicator light in the button flashes while the Operating
Panel establishes contact with the Processor Unit. When the
connection has been made, the blue indicator light is lit permanently.
Wait while the operating system and SN90 program is loaded and
started. Both the Processor Unit and the Transceiver Unit are turned
on automatically.
4
Observe that the
The dialog box offers progress information. You can monitor the progress as the
Transceiver Unit is turned on. A blue circle on the hull unit symbol means that your
SN90 Processor Unit communicates with the Motor Control Unit.
5
Once the program has started, observe that the presentation fills the entire screen.
381295/B
, and keep it depressed for a few seconds.
Power
dialog box opens automatically.
Transceiver On/Off
Operating procedures
Power
51
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