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259
3
Select the default settings.
a
On the
Main
menu, select
User Settings
.
b
Observe the
Factory Settings
list.
c
Select the setting you want to use.
d
Select
Activate Selected Setting
.
e
Select
OK
to apply your changes and close the
User Settings
dialog box.
4
Make the following preparations.
a
On the
Main
menu: Set
Range
to
1500 m
.
b
On the
Operation
menu: Set
Tx Power
to
Maximum
(or any other power rating) to
start pinging.
c
On the
Setup
menu: Select
Diagnostics
to open the dialog box.
5
Select
Transducer
to open the page.
The
Transducer
page presents all the elements that are used in the transducer. The
presentation attempts to organize the elements in the same manner as in the physical
transducer. The transceiver boards are shown as "buttons". Select a transceiver board
to highlight the elements that are physically connected to the board.
6
Select
Reception Test
to start an automatic test of the individual transducer elements.
The reception test validates each single element in the transducer, and returns the
status using a simple colour code.
•
Green
: The transducer element is fully operational.
•
Red
: The transducer element offers reduced performance.
•
Black
: The transducer element is not working ("dead").
For more information, observe the tooltip provided for each element rectangle.
7
Make sure that the number of unserviceable ("dead") elements does not degrade the
performance of the CS90 system.
A small number of unserviceable transducer elements are accepted, even for operational
use. This is regarded as "graceful degradation”.
The CS90 system offers a large number of transceiver channels. 16 identical transceiver
boards are used. If a single channel fails during normal operation, you are not likely to
detect it. Even if several channels fail, you may not see it.
The detection of a faulty channel depends on the physical location of the relevant
transducer element. If faulty channels are grouped together on the transducer face,
this may cause a visible defect in the display presentation. If they are scattered, the
visible defect may be a lot harder to see. In all cases, the echoes from the neighbouring
channels cause an interpolation that will restore a lot of the degraded presentation.
Summary of Contents for Simrad CS90
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