MT4412E Rev.3 15/10/2019 Page 29 of 30
It is possible to perform 3 operations for active events:
- press ENT per additional details about the event
- press ACK to acknowledge the event and silence the buzzer of the central unit
- press RST (Reset) to restore the central unit to its normal status (this is only possible if
ACK was pressed before and if the gas detector is no longer in the alarm and/or fault
status)
ACK
When an event occurs (alarm or fault), the buzzer of the central unit will sound and the
display will switch to the Active Events page, which will indicate the sensor in Alarm and/or
Fault. To silence the buzzer of the central unit, turn the key to the central position (ACK)
and press the ACK key; the central unit buzzer will stop and an X will appear on the right
hand event line.
RESET
By turning the key to the left and pressing RST on a previously acknowledged event
(with the indication "X"), the event will be reset and disappear from the ACTIVE
EVENTS list.
NOTE: if the event attempted to be reset still exists (such as a gas detector still in Alarm
status), after the reset procedure, the event will still appear as needing the
acknowledgement button (ACK) to be pressed again.
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