Building Technologies A6V10334410_h_en_--
Fire Safety 2015-09-29
5.1.4 Removing and installing the housing cover when the power
supply is switched on
Damage to electronic components in the aspirating smoke detector
● When working on the open aspirating smoke detector, use anti-static floor
mats and anti-static work surfaces.
● Ground yourself immediately before opening the housing, e.g. by touching a
ground point or wearing an anti-static belt.
Accidental triggering of an alarm
Triggering a false alarm
● When the housing cover is opened, the buzzer sounds. The relay outputs
remain active and the 4…20 mA analog output has been switched to fault
(0.5 mA).
● If the button is pressed, the buzzer switches off and the relay
outputs are deactivated. The 4…20 mA analog output remains on fault.
●
Closing the housing cover automatically reactivates the relay outputs and the
4…20 mA analog output switches to normal operation.
When the housing cover is removed, you have access to:
The fixing screws
The cable entry
All the mechanical components
The electrical connections
The rear of the front indicator
To Next Page
Loading...
Need help?
General
