B&G Hydra 2000, User Manual

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Hydra 2000 User Manual
Part 5 - Options
HB-0844-02
5-7
5.3.3 Meter Scaling
Meter scaling can also be varied for boat speed and wind speed .
For example if a 25 knot full scale Boat Speed Meter is required,
this can be done as follows:
(1) Follow steps (1) and (2) as detailed in Para 5.3.3.
(2) With OPTIONS flashing, press Scroll Up to reveal
SCALING and press Enter , BOAT SPD will appear . A
further press of Enter will reveal the current maximum
meter scale value for the Boat Speed Meter.
(3) To change this (e.g . to 25 knots) press Enter and
then Scroll Up to increase the number to 25.0 . A final
press of Enter will then enter the new maximum scale .
The Boat Speed Meter will read between 0 and 25 knots.
(4) Press Page to return to normal operation.
5.4 GRAVITY SWITCH
In installations where two speed sensors or depth transducers are
fitted a gravity change over switch can be fitted to automatically
select the leeward sensor
. A switch on the outside of the unit over
rides the automatic selection if required, for example when
calibrating the individual speed sensors.
5.5 AUDIBLE ALARM
The Main Processor contains a relay switch for an external audible
alarm if required.