7
Alarms and failures
Personnel:
n
Person in charge of the system
Protective equipment:
n
Protective goggles
Fig. 62: DET-AC III Master
The system’s operating state is signaled by the continuous green illumination in the
operating LED.
The fire alarm and triggering of the system are shown on the display and through
both of the red LEDs.
Failure, blocking and shutdown are shown through the yellow LEDs. If possible, the
system should be installed so that it is easily visible.
Alarm messages
The system has two fire detectors with differing sensitivity to smoke. The states
“Pre-alarm”
and
“Fire”
are generated at the system.
Failure messages
The system monitors the most important functions. Failures are shown and can be
transmitted via the potential-free contacts to an external display or controller.
INFORMATION
The significance of the LEDs is explained in
The display messages are explained in
NOTICE
Malfunction due to failure!
Correct functioning of the system is not ensured if a failure exists. Under certain cir-
cumstances, no fire can be detected or extinguished if a failure message occurs.
● Rectify the cause of the failure message immediately.
Alarms and failures
Operating Instructions / DET-AC III Master / 916005 / 11-2022 / en_US
64