6.- Operation
ALARM STATION
GAS DETECTOR
STATUS
ACOUSTIC
ALARM
RELAYS
Alarm
Pre-
alarm
No alarm
Off
Off
Off
Slow flashing
Off
Delayed
pre-alarm
Off
Off
Off
Off
Quick flashing
Pre-alarm
Flashing
On
Flashing
Off
Quick flashing
Delayed
alarm
Flashing
On
Flashing
Off
On
Alarm
Flashing
On
Two-tone sound
Off
On
Saved alarm /
pre-alarm
Off
Flashing
Off
Slow flashing
Off
Detector /
wiring fault
On
On
3 short tones
every 2 minutes
Flashing / alternative
Without
power supply
Off
Off
Off
Off
Off
1
4
5
2
3
6
A
B
C
D
E
F
1
4
5
2
3
6
1
4
5
2
3
6
1
4
5
2
3
6
1
4
5
2
3
6
1
4
5
2
3
6
1
4
5
2
3
6
*
GAS concentr
ation (ppm)
t
Pre-alarm
level
Alarm level
A
B
B
C
C
C
D
D
E
E
F
F
**
If during the delay time of a pre-alarm the gas concentration increases to the alarm value, for safety reasons,
the pre-alarm delay will be cancelled, activating the signalling in the station.
*
Saved alarm / pre-alarm
They let us check if any alarm / pre-alarm has triggered during our absence.
Mute/reset button
During an alarm, it silences the acoustic alarm, in delay (without alarm), deletes the
existing saved alarms.
**
1
4
5
2
3
6
13
