342
419050/B
Checking the transducer lower and hoist functionality - Bridge steps
The hull unit provided with the SC90 is designed to lower the transducer down below
the ship’s hull when the SC90 shall be used. This is a key functionality of the SC90.
It is very important that the hoist/lower function is tested before the SC90 is put to
operational use. In order to test the lower and hoist functionality of the hull unit, two
tasks must be done simultaneously. These tasks are done on the bridge.
Prerequisites
The SC90 is installed as specified in this manual. The SC90 is turned on, and it is
working normally. Neither tools nor instruments are required.
Context
Certain steps in the two procedures are location specific. The steps marked [
Sonar
room
] are done in the sonar room.
Procedure
1
Make sure that the water depth under the keel permits you to lower the transducer.
2
[
Sonar room
] Locate the
Motor Protecting Switch
(S301). Set the switch to position
ON
.
3
[
Sonar room
] Locate
Hoist/Lower Switch
(S302). Set the switch to position
REMOTE
.
4
Lower the transducer to its middle position.
a
On the Operating Panel, press
Middle
.
To indicate transducer movement, the indicator lamp next to the
Middle
button
flashes, and an audible signal is sounded. When the middle position has been
reached, the indicator lamp is lit, and the audible signal stops.
b
[
Sonar room
] When the transducer shaft stops, verify that the correct middle
position has been reached.
5
Lower the transducer to its bottom position.
a
On the Operating Panel, press
Down
.
To indicate transducer movement, the indicator lamp next to the
Down
button
flashes, and an audible signal is sounded. When the bottom position has been
reached, the indicator lamp is lit, and the audible signal stops.
b
[
Sonar room
] When the transducer shaft stops, verify that the correct bottom
position has been reached.
6
Hoist the transducer to its middle position.
a
On the Operating Panel, press
Middle
.
To indicate transducer movement, the indicator lamp next to the
Middle
button
flashes, and an audible signal is sounded. When the middle position has been
reached, the indicator lamp is lit, and the audible signal stops.
Simrad SC90 Installation Manual
Содержание SC90
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Страница 493: ...419050 B 491 430192 Transducer dock dimensions Download the source drawing from https www simrad com sc90 Drawing file ...
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