Relay output
Potential-free NO and NC contact. These contacts are used for connection to an alarm
system, a telephone dialer, a warning light or similar.
Connection to an NO contact (normally open closes in the event of an alarm)
is made at the N.O. and COM terminals.
Connection to an NC contact (normally closed opens in the event of an alarm)
is made at the N.C. and COM terminals.
When the gas alarm is de-energised and in normal mode, the N.C. and COM contacts
are closed, i.e. the relay is at rest.
When using the relay output with voltages higher than 25 Volt AC or 25 Volt DC, a
terminal box on site must be used for connection of the cable to the external consumer
(e.g. warning light).
Installation must be carried out by a qualified electrician.
12 Volt switching output
Switched 12 V DC signal for the direct control of an external horn or warning light, for
example. The maximum load is 200 mA. The connection is made via a 2-pole +/-
terminal output connection.
Make sure the connections have the correct polarity!
12 V model:
Electrical connection to 12 Volt direct current (DC) only.
Tolerance: -15% / +20%
We recommend a connection cable with core identification.
230 V model:
The gas alarm is delivered with a connection cable and Euro plug. This is to be used
with a 230 V AC (alternating current) power socket.
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Electrical connection
Connect the supply cable to the '+' and '-' connection terminals. Make sure that the
voltage is disconnected when connecting the current supply.
Make sure the connections have the correct polarity!
Switching outputs
The gas alarm has two switching outputs which are used to control an alarm system
or other signal transmitters and devices.
The respective connection terminals are under the cover plate.
Only connect the alarm when the power supply is disconnected!
Operation
As soon as the gas alarm has been properly connected to the power supply, an automatic
self-test is conducted: The green POWER LED flashes during this self-test. The self-
test takes approx. 20 seconds. The three LEDs light up briefly when the self-test has
been successfully completed. A signal horn sounds at the same time. The green
POWER LED then indicates that the alarm is operational.
