39
October 2010
AUTOMATIKPRODUKTER
AUTOMATIKPRODUKTER
ATEX – Duct Smoke Detector
10.3
Display of operating statuses
of the ORS 221 Ex
Condition
Display
Relay contact
Normal operation
Minor contamination
Heavy contamination
Failure
(failure of sensing
chamber)
Alarm
LED flashing green
(approx. every 4 seconds)
LED flashing in alternat-
ing colours green/yellow
(approx. every 4 seconds)
LED flashing twice in
short succession, in
alternating colours
green/yellow (approx.
every 4 seconds)
LED flashing yellow (ap-
prox. every 4 seconds),
relay contact is open
LED flashing red (approx.
once per second)
Relay contact is closed
Relay contact is closed
Relay contact is open
Relay contact is open
Relay contact is open
