Sperry Marine NAVIGAT 100, Operation, Installation And Service Manual

Page: 70 / 212

056373/D NAVIGAT 100
3-2 Alert Indication
3.1 Alert Indication
Audible Alert Indication
Single Beep: Invalid Action
Triple Beeping Sequence: Pending Alarm Condition
Double Beeping Sequence: Pending Warning Condition
A single short beep indicates that the operator attempted to
carry out an invalid action.
This is the case, e.g. if the operator tries to change the head-
ing reference in an automatic steering mode or to activate a
heading source from which no valid data is received.
A pending (unacknowledged) alarm condition is indicated by
a triple beeping sequence:
three beeps - no beeps for 4 sec. - three beeps …
and so on as long as the pending alarm condition exists.
Simultaneously, the alarm is visually indicated,
see “Visual Alert Indication” on page 3-3 and
"Alarm Displays" on page 3-4 for details.
A pending (unacknowledged) warning condition is indicated
by a double beeping sequence:
two beeps - no beeps for 5 sec. - two beeps …
and so on as long as the pending warning condition exists.
Simultaneously, the warning is visually indicated,
see “Visual Alert Indication” on page 3-3 and
"Warning Displays" on page 3-8 for details.
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