Electrical Connection; Switching Outputs - Indexa CO90 Mode D'emploi

!
In air currents from fans (ventilation, air-
conditioning, etc.)
!
Close to an air vent (e.g. extraction hood) or other
similar equipment Ventilation openings
!
Areas in which the temperature can fall below -
10° C or rise above +40° C
!
Damp or wet rooms such as bathrooms and showers
where the relative humidity can rise above 95%
!
Directly next to a cooking stove
!
Directly above cooking facilities
!
Directly above a drain or a basin
!
Areas where dirt and dust can clog the sensor
!
In rooms with potentially explosive atmospheres
The alarm must not be used outdoors!
Installation
Make sure that the voltage is disconnected
during installation and when connecting the
power supply!
Two screws are used to fasten the alarm to the wall or
selected location. Use the enclosed screws. Both the
assembly holes and the connection terminals are
under a cover plate. The cover plate is attached simply
with two pins and can be lifted off carefully without the
need for tools.
Make absolutely sure to install the alarm at the
height specified in the chapter entitled
'Placement'!

Electrical connection

230 V model:
The CO alarm is delivered with a connection cable and
Euro plug. This is to be used with a 230 V AC
(alternating current) power socket.
12 V model:
Electrical connection to 12 Volt direct current (DC)
only.
Tolerance: -15% / +20%
We recommend a connection cable with core
identification.
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 CO 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!
12 Volt switching output
Switched 12 V DC signal for the direct control of an
external horn (AS 05, Art.Nr. 33 133) or warning
light (BL 01, Art.Nr. 33 134), 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!
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
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 CO alarm is not powered and in normal
mode, the N.C. and COM contacts are closed, i.e. the
®
closes in the event of an
®