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LED
detector supplied
GREEN
YELLOW
detector failure
detector in alarm
condition due to
RED
the exceeding of
Operation in alarm condition
Upon switching on the detector for the first time or when the device is
switched on after a long period (more than 2 weeks) without power, the
sensor takes 7 to 10 days to acquire its steady physical-chemical cha-
racteristics and thus a constant level of sensitivity. It is therefore strongly
recommended to make sure that this "period of conditioning" has pas-
sed before carrying out any checks on the activation level.
On connecting the detector, the green led will flash for 2 minutes approx.
(known as "reactivation period"): during this time the detector cannot
test the quantity of gas present in the environment.
When the concentration of gas in the air exceeds the threshold, the
detector starts working by switching on the red led. After 5 seconds from
the led red switch-on, the built-in intermittent sound alarm starts.
If, during this time, the concentration of gas falls below the detection
threshold, the gas detector alarm switches off and the delay is comple-
tely reset. The sound alarm remains on for all the duration of the alarm.
Afterwards, after 20 seconds from the activation of the sound alarm, the
alarm relay is activated too. The alarm relay contacts can also control
solenoid valves (NO or NC) or visual-sound alarms.
INSTALLATION
For the instructions of the following:
• Mounting
• Overall dimensions
• Where installing the device
• Positioning
• Areas to be avoided
Refer to the instructions, pages 21, 22 and 23 of the manual of model
RG1-M.
On
with power
sensor or
the threshold
Off
detector not
power supplied
detector in full
working order
detector alarm
off
Flashing
detector under
reactivated
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