16
Function checks
Use a gas lighter to test that the gas alarm is functioning. Please proceed in the
following steps:
Let gas out of the lighter directly next to the sensor opening of the gas alarm without
a flame.
The sensor will register the escaping gas. The device emits an alarm if the sensor
registers a gas concentration in excess of the preset sensitivity threshold: A pulsing
signal tone sounds and the red ALARM LED flashes.
As soon as the alarm signal goes off, do not let any more gas out of the lighter.
The alarm mutes automatically as soon as the gas concentration at the sensor falls
below the preset sensitivity threshold.
The function test should be carried out regularly, at least every 4 weeks!
Service life
When operating continuously under normal ambient conditions, the expected service
life of the sensor is approx. 5 years.
Replace the gas alarm after a service life of 5 years!
Various chemicals can damage the sensor permanently.
Do not subject the sensor to the following substances and environments:
Sprays and adhesives containing silicone
Aggressive environments in which hydrogen sulphides, sulphur dioxide,
chlorine or hydrogen chloride is present (cleaning agents containing chlorine,
descaler sprays)
Moisture and condensate
Salt-laden atmospheres
Fault display
The gas alarm carries out a continuous self-test. Flashing of the yellow FAULT indictor
indicates the presence of a fault. In addition, two short signal tones are issued per
minute.
2 short signal tones every 60 seconds,
yellow FAULT indicator flashes
The fault display can either be triggered by the surroundings or there is a defect in the
device.
Please proceed as follows if a fault is indicated:
Check whether the ambient temperature lies outside the permissible range
of -10°C to +40°C.
Check whether chemicals in the ambient air or other substances could have
triggered the fault display, such as an excessive concentration of acid or alcohol
in the air, cleaning liquids, paints, lacquers, sprays, polishing agents, cooking
vapours or tobacco smoke. Check the gas alarm in another room if necessary.
If an alarm is not signalled in the other room, the cause of the fault is in the original
installation site.
If the fault display continues to be active, there is either a defect in the device or the
gas alarm is worn out after a service life of approx. 5 years.
The gas alarm must be replaced in this case!
