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1. HOW THE BRIDGE ALARM SYSTEM OPERATES
1-3
The OOW stops the audible alarm and acknowledges the alarm. Then, audible and
visual alarms at the Bridge Panel, Cabin Panels and Timer Reset Panel are removed
and the watch safety timer is reset.
The interpretation of the prewarning 15-second visual alarm (flashing) and the15-sec-
ond visual (flashing) and audible (buzzer) alarms at the 1st stage depends on the
mode type selected. The BR-1000 can be configured for IMO (International Maritime
Organization) or DNV (Det Norkse Veritas, Norwegian classification society).
IMO: Alarm given for 30 seconds AFTER
selected time interval elapses.
DNV: Alarm given for 30 seconds BEFORE
selected time interval elapses.
The required mode can be selected from the Service menu.
The sequence of the watch safety alarm in each mode is shown in the figures that fol-
low.
Watch safety alarm sequence (IMO)
BRIDGE PANEL
TIMER RESET PANEL
(incl. watertight type)
Back-up navigation officer quarters
and all public areas
CABIN PANEL
Visual ALM*
+ Audible ALM
Visual ALM (lighting)
+ Audible ALM
Visual ALM (lighting)
+ Audible ALM
BUZZER STOP
ACK
Timer starts
Variable (90-180 s)
Timer
starts
2nd stage
3rd stage
15 s
15 s
Specified interval
Variable (3-12 min)
NO BUZZER STOP
NO ACK
Alarm forwarded
Alarm forwarded
- TIMER RESET
- OPERATOR FITNESS
- ACKNOWLEDGE
If none of the above is done
Visual ALM*
Visual ALM*
+ Audible
ALM
Visual ALM (lighting)
+ Audible ALM
*Red flashing at Bridge Panel,
yellow flashing at Timer Reset Panel
1st
stage
30 s after specified
interval elapses
Prewarning
CABIN PANEL in all
navigation officers quarters
(The CABIN PANELS in all public areas
continue the alarm.)