Technical data

a dual connection (parallel connection) is
made.
Installation
c Danger: make sure that the gas alarm is
not powered during installation.
o Remove the mounting fixture
h
from the
rear side of the casing
g
by sliding it
downwards (see Fig. B).
o Mark the installation position with the aid
of the two round holes in the mounting
fixture
h
.
o Install the mounting fixture
h
in the cho-
sen and marked position using the fas-
tening screws and wall plugs supplied
with the gas alarm.
o Push the gas alarm flush from above onto
the mounting fixture
h
.
Operation
Once the power supply has been connected
properly,anautomaticself-testiscarriedout:
the gas alarm emits several loud alarm signals
andatthesametimetheredALARMLED
c
on the front of the casing
a
flashes. The green
POWERLED
d
then lights up to indicate that
the device is ready for operation (see Fig. A)
12 V DC mains adapter
Switching on:
o Plug the mains adapter directly and fully
into a 230 V~50 Hz mains socket. Do not
use any type of tabletop socket or exten-
sioncable,sincethesecancauseinter-
ruptions in the power supply.
Switching off:
o Remove the mains adapter from the
mains socket.
12 V DC on-board supply system
Switching on:
o Switch the 12 V DC on-board power supply
on.
Switching off:
o Switch the 12 V DC on-board power supply
off.
Alarm in the event of a gas leak
The gas alarm detects a gas leak with the
sensor. If the concentration of gas at the sensor
exceeds the pre-set sensitivity threshold on
thegasalarm,thealarmresponds:thered
ALARMLED
c
flashes and the loud alarm
signal is emitted.
The alarm continues until the gas concentration
falls back to below the pre-set sensitivity level.
Follow the instructions in the section
„What to do in the event of a gas leak“
Function test
Use a gas lighter to test the function of the gas
alarm.
o Allow gas to escape from the gas lighter
directly next to the lower or side sensor
opening
k
.
o Make sure that there is no flame on the
lighter. The gas alarm detects the gas
with the sensor. If the gas concentration
at the sensor exceeds the pre-set sensi-
tivitythreshold,thealarmresponds:the
redALARMLED
c
flashes and the loud
alarm signal is emitted.
o Do not allow any more gas to escape
from the lighter once the gas alarm has
responded.
The alarm continues until the gas con-
centration falls back to below the pre-set
sensitivity level.
Fault indicator
The device carries out a self-checking routine
for your safety. Possible errors are displayed
bytheFAULT-LED
e
flashing and a coincident
beeping noise from the device.
This fault indicator may also be triggered by
the gas alarm’s surroundings or by an internal
problem inside the device.
If a fault is indicated you must check first:
o Whether the ambient temperature is out-
side the specified range (-10° C to +40° C).
o Whether chemicals present in the air may
havecausethefault,e.g.ahighconcen-
tration of acid or alcohol. If this cannot be
conrmed,thentrythedeviceinanother
room. If no fault is indicated there then
the problem lies in the surroundings.
If the fault indicator is still active then the
problem lies within the device itself:
o The gas alarm has suffered internal damage.
o The gas alarm can be used for approxi-
mately 5 years.
Then it should be replaced.
11
GB
10
GB
KOE217_GA617_Content_LB4A.indd 10-11 20.11.2007 16:01:59 Uhr