409977/B
31
b
[
Sonar room
] When the transducer shaft stops, make sure this happens at the
correct middle position.
5
Lower the transducer to its bottom position.
a
On the Operating Panel, press
Down
.
While the transducer is moving the indicator lamp flashes, and an audible
signal is sounded. When the requested 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
.
b
[
Sonar room
] When the transducer shaft stops, make sure this happens at the
correct middle position.
7
Hoist the transducer to its upper position.
a
On the Operating Panel, press
Up
.
While the transducer is moving the indicator lamp flashes, and an audible
signal is sounded. When the requested 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 upper
position has been reached.
8
Lower the transducer to its bottom position.
a
On the Operating Panel, press
Down
.
b
[
Sonar room
] When the transducer shaft stops, verify that the correct bottom
position has been reached.
9
Hoist the transducer to its upper position.
a
On the Operating Panel, press
Up
.
b
[
Sonar room
] When the transducer shaft stops, verify that the correct upper
position has been reached.
10
Notify the sonar room to do the next step.
11
[
Sonar room
] Locate the
Hoist/Lower Switch
(S302). Set the switch to position
STOP
.
12
Power down the SU90.
If the transducer is lowered when you turn off the SU90, it is automatically retracted
to its upper position. The Transceiver Unit is turned off. The SU90 program closes
down.
13
Notify the sonar room that the test is finished.
Summary of Contents for SU90
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