B&G Hydra 2000, Руководство пользователя

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Hydra 2000 User Manual
Part 6 - Diagnostic Data
HB-0844-02
6-6
message is displayed within 10 seconds then it can be assumed
the node being tested is not in the system. The REMOTE tests for
the currently selected node can be exited by holding
Enter down
and pressing the Power/Lights Key.
6.2 MAIN PROCESSOR
The main processor contains two circuit boards: the wind board
and the depth board. The depth board is responsible for boat
speed, sea temperature and depth measurement. The wind board
is the main sensor responsible for wind functions and also drives
the analogue meters. It has special inputs for the Masthead Unit,
Super Halcyon compass, air temperature, battery voltage and four
linear inputs that can be connected to a variety of other sensors
(see
Part 4 - Installation Instructions ).
6.2.1 Masthead Unit
If there appears to be a problem with wind speed or wind angle
first check the cable connections at the main processor and at the
mast base junction box. The easiest way to test the MHU cable is
by substituting a spare cable. If the cable is damaged in the mast
the cause of the damage should be ascertained and the mast re-
rigged or new conduit installed before replacing the cable. The
Masthead Unit should always be removed before the mast is un-
stepped to avoid damage. It should be stored in its original
packing box with the vane and cups removed.
Note
The Masthead Unit's bearings should not be oiled as they are of a
sealed pre-lubricated type and additional oil may cause chemical
breakdown of the existing lubricant.
6.3 DEPTH SOUNDER
Fault finding on the depth sounder is often difficult as depth
sounder performance is dependent on many factors: transducer
type and installation, boat speed, electrical noise, sea state, sea
bed conditions, air and plankton in the water. Indications of
problems with the depth sounder normally manifest themselves in
one of three ways: