EsiWelma
®
s.r.l.
- 10 -
E117.602_En
10. Functional states
Key:
ON
= on continuously / activated/ switched
OFF
= off / deactivated / not switched
A
= slow flashing at 1 Hz
B
= cycle of 2 quick flashes (2 Hz) and a 1 sec pause
C
= short sounding of Buzzer (Beep)
D
= 1 command impulse of about 0,5 sec every 20 sec.
E
= depends on the other conditions (*)
ON/Imp
= continuous / impulse switched (see Jumper E1)
(*)
Checking the integrity of the connection or of the solenoid valve itself does not affect the detector's other statuses. In other words, an anomaly
status for the solenoid valve does not prejudice normal functioning of the detector, and its capacity to activate the alarm due to the presence of
gas. In order to avoid the yellow LED flashing when the solenoid valve is not in use, a suitable load resistance will be fitted on the solenoid valve
terminals in the factory. This resistance is only to be removed if the solenoid valve is used.
Outputs
Detector status
LED
GREEN
LED
YELLOW
LED
RED
BUZZER
SOLENOID
VALVE
RELAY
Off
OFF
OFF
OFF
OFF
OFF
OFF
Initial test for LEDs and buzzer (1 sec)
ON
ON
ON
C
OFF
OFF
Sensor warm-up (60 sec)
A
OFF
OFF
OFF
OFF
OFF
Normal operation
ON
OFF
OFF
OFF
OFF
OFF
Alarm
ON
OFF
ON
ON
D
ON/Imp
Sensor faulty
ON
B
OFF
C
OFF
OFF
Solenoid valve anomaly
ON
A
E
C/E
E
E
General anomaly
ON
ON
ON
C
OFF
OFF
Functional test (inducing alarm) (25 sec)
ON
OFF
ON
ON
D
ON/Imp
