Bedienungsanleitung Simrad FS25 (Seite 82 von 108) (Englisch)

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901-10037001/1.1 FS 20/25 Operators Manual

Page 5.10 Maintenance and Troubleshootin

Kongsberg Simrad Mesotech Ltd.

Port Coquitlam, BC - Canada

For an FS900 deployment package, configured with an FS3300 head, be advised

that the FS3300 head requires the most attention of the vertical heads, because it is

the easiest to damage. The FS3300 head, when connected directly to the

TTM/PWR unit with a test cable, should be run with the switch in “TEST”. If you

make a mistake and have the switch in “FS20”, it will be fine for a short period of

time, but the head will really start to heat up and may damage the power supply if

run for a longer period of time.

WARNING

If you connect an FS 3300 sonar head, with the power switch set at “FS25”

(200Vdc), you will damage your sonar.

The TS10, TS15 and TS15 S are more forgiving than the FS3300 heads when it

comes to any mistakes in switch positions. They are all designed to run at 200Vdc

without being damaged. For purposes of using the test cable, the TS10 can be run

with the switch in “TEST”; the TS15 and TS15 S are both 1KW sonars, with higher

input power requirements, and should be run on the test cable with the switch in the

“FS20” position.

5.4.2 Power Supply Meter Readings

The voltage and ampere meters are useful for monitoring the trawl unit power

requirements. For the most benefit, these meters are mounted on the front panel of

the PWR/TTM unit next to the trawl voltage selection switch for continuous

monitoring.

When the system is first installed, and initial run up of the deployment package is

done using the test cable, voltage levels and current values should be recorded after

the PWR/TTM unit is turned on, and power is supplied to the deployment package.

After the full system is running in normal operating mode (i.e., with range and scan

speed set to values normally used during fishing), voltage levels and current draw

should again be observed and recorded. This first part would confirm the operation

of all components of the system on the test cable and establish a set of known

conditions and readings that should be consistent and remain constant until one

of the components is replaced, at which time you would repeat this process.

You will now switch over from the test cable to the 3

wire and repeat the process of

recording voltage levels and current draw for both situations described above

(PWR/TTM unit alone and then with the full system up and running). Typical values

will vary depending on the type of system (i.e. deployment package with various

combinations of head types and sensor modules) installed. To facilitate monitoring

of this information, these values should be recorded on the chart provided in Part 7.

“Attachments”.

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Simrad FS25 Seite 82

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