B&G Hydra 2000, Руководство пользователя

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Hydra 2000 User Manual
Part 6 - Diagnostic Data
HB-0844-02
6-7
(a) display shows (Floating Bars)
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(b) display locks down showing depths in the range 0 to
1.5m, or
(c) display shows random deep depths
All of the above symptoms can be caused by external conditions
so care and additional tests should be performed before
concluding that the fault lies within the depth sounder. There are
two values output by the depth sounder that can be of assistance
in diagnosing problems, these are receiver gain and noise that
can be found in the PARAMTR Menu on a FFD.
6.3.1 Yacht Stationary
Symptom: Display consistently shows (Floating Bars) when well
within the range of the sounder with the yacht stationary in the
water:
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This is an indication that no consistent signal is being received by
the depth sounder.
Possible Causes:
(a) The transducer is not connected.
(b) The transducer is not in its housing.
(c) If sounding through the hull there is not enough oil in
the housing or the hull material is not suitable to sound
through.
(d) The transducer is faulty or has been damaged. The
transducer should be checked for any damage, barnacle
growth or thick layers of paint. If it needs cleaning this
should be done with a scrubbing brush. The face of the
transducer may have a thin coat of anti-fouling applied to