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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.
Commissioning
As soon as the CO alarm has been properly connected to the current supply, an
automatic self-test is conducted: The green POWER LED flashes for up to 90 seconds.
The green, yellow and red LEDs then flash alternately. Three crossbars will appear on
the display. This takes approx. 50 seconds. A signal horn sounds when the self-test
has been successfully completed. The green POWER LED then indicates that the
alarm is operational.
Exception:
The green POWER LED will flash for 90 seconds if, during commissioning, there is
already a CO concentration sufficient to trigger an alarm. The system then switches
into operating mode and the prevailing CO concentration shows on the display for 15
seconds. Depending on the CO concentration, the alarm signal triggers with the time
delay specified in the chapter entitled 'Technical data'.
Operating functions
Repeating sequence of 4 signal tones
Simultaneous red ALARM light
A signal is fed to any other connected devices.
The alarm continues until the carbon monoxide concentration falls below the preset
sensitivity threshold.
Do not disconnect the CO alarm in the event of an alarm!
Mute function
If necessary, the acoustic alarm during the alarm status can be turned off for 5 minutes
by pressing the TEST button. The red ALARM light will continue to flash.
The acoustic alarm will sound again if carbon monoxide is still present after the 5-
minute mute phase.
Normal mode
The green POWER indicator lights continuously. The CO alarm is operational.
Alarm
The device emits an alarm if the sensor registers a carbon monoxide concentration in
excess of the sensitivity threshold set in the factory: A repeating sequence of 4 signal
tones with simultaneous illumination of the ALARM light is output.
Note:
The mute function cannot be activated if the carbon monoxide concentration exceeds
350 ppm.
The mute function can only be used once during an ALARM phase, i.e. the acoustic
alarm can only be suppressed once for a period of 5 minutes.
