Unit installation

FS70 Trawl Sonar System
80 974-24007001/4.1
Record folder: Any recordings that you manually start
All of these files are date and time stamped so you will know
exactly when they occurred.
If you have experienced a problem with the system you want to
ensure that the auto recording of the event will not be overwritten.
In this event you want to simply move the file from the “diagnostic”
folder and place it into a folder where you will easily be able to find
it. This file should be sent to your service provider at your earliest
convenience so that they can help determine what has caused the
problem.
5.4.13 Diagnosing Problems
The usefulness of these tools is greatly enhanced when they are
used on a regular basis to monitor system performance. Records of
past system performance (when the unit is operating properly)
provide a basis for comparison that may assist in diagnosing the
problem when an FS system fails.
If the FS system develops a problem, or if it fails completely, the
steps below should be followed.
1. Check the power supply unit meters and record their values. If the
failure was on power up, ensure the voltage selection switch is on
high and that the power is on. If the system developed a problem
or failed while operating, then note the voltage and current meter
behaviour. If the current meter jitters, then stop the trawl winch if
rotating, and note any changes in the meter values or their
behaviour.
2. If the processor unit displays a system test result page then record
the values and make note of any failure (highlighted in red). If not,
then implement a system test and record the results obtained.
3. Disconnect the trawl unit from the trawl cable and re-connect to the
FS system using the test cable, next re-power up the system. If the
system failed then you will have to troubleshoot the problem.