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ZONESENSE DH4
OPERATORS MANUAL
6.3.3 Zone
Indicators
There are two indicators for each alarm zone fitted to the FACP.
Zone Fire – Red
Individual zone Indicators showing when each zone is in the fire condition (flashing at the alarm rate)
and will become steady when silence resound switch is pressed. An incoming alarm on another zone
will cause that fire indicator to flash while the original indicator will remain steady.
Zone Fault / Disabled / Test – Amber
Flashes at the fault rate due to a fault condition on individual zones. Disabling that zone causes the
LED to become steady. Reminder - the disablement has priority over displaying a fault condition.
Other Indications
The zone indicators are utilised in the disable /enable and walk test process. The following table
summarises the functionality of the zone indicators:
Condition Fire
Indicator
Fault/Disabled Test Indicator
Alarm (un-silenced)
Flashing at the alarm rate
-
Alarm (silenced)
Steady
-
Fault
-
Flashing at the fault rate
Disabled
-
Steady (priority over fault)
Normal -
-
Disable / Enable Operation
Disable -
Rapid
Flash
Enable
Slow
Flash
Walk Test
Selected and under
test
Steady – when the alarm condition
has been detected (3 seconds only)
Rapid Flash