Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications Page 110

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IS15 General Manual
108 20220760L
Condition Probable Cause Action
One or more
instrument(s) always
show ‘----’, with the
pointer of analog
instruments at their
zero positions.
No data is reaching
the affected
instrument(s).
Check the signal wiring to the affected
instrument(s).
Check Roblink data by entering the
Roblink test menu on a Combi instrument.
See the following fault finding charts for
details.
Wind Display Faults
Condition Probable Cause Action
There are no Wind
Speed or Wind
Angle displays, or
these displays
always show ‘----’.
The wind transducer is
not fitted to the mast
head connector.
The wind transducer is
not connected to the
IS15 Transceiver
properly.
Check, and fit the transducer if necessary.
Check the wind transducer’s Roblink
connection to the Transceiver.
Check that the wind transducer cable is not
damaged.
Check the connections in the Junction Box
at the mast foot.
Contact your dealer.
The Wind Speed
displays always
show ‘0.0’, but the
Wind Angle displays
are shown.
The anemometer
(cups) is seized.
Check the anemometer cups and have the
wind transducer serviced if necessary.
A broken anemometer cup may be
replaced by the dealer/customer.
The Wind Speed is
too low, when it was
previously correct.
Worn anemometer
cups/bearing.
Damaged anemometer
rotor or transducer
body.
Check the anemometer cups and rotor
bearings or have the wind transducer
serviced if necessary.
Check that the rotor (cups) and transducer
are not damaged.
Make other checks as for ‘always showing
0.0’ above.
The Wind Speed is
too high or erratic,
when it was
previously correct.
Damaged wiring
causing intermittent
contact.
Make checks as for ‘always showing 0.0’
above.
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