2.3 What happens when your CO Alarm detects Carbon Monoxide ?
When the Alarm detects potentally dangerous levels of CO, it flashes the red alarm light and then sounds
a loud alarm if the CO persists. The digital display indicates the CO level in parts per million, ppm CO.
Table B below shows how the CO Alarm reacts to different levels of CO gas and exposure time. At higher
levels of CO the alarm turns on sooner. The rate of flashing of the red light indicates the level of CO.
Table B: CO Alarm Response
*
unless it has been in alarm (see CO Alarm Memory below)
If your CO Alarm sounds follow the instructions on page 2.
When ventilation is provided by leaving the window and doors open, the CO build up may have
dissipated by the time help arrives and the alarm may have stopped sounding. Although your problem
may appear temporarily solved it is crucial that the source of the CO is determined and appropriate
repairs made.
NEVER IGNORE THE ALARM.
6
CO Level
ppm
0
30+
50
100
300
Off
Off
1 Flash / 2 Seconds
2 Flashes / Second
4 Flashes / Second
Off
Off
60 to 90 minutes
10 to 40 minutes
3 minutes
Off
Shows
CO level
in
ppm CO
Red
Alarm Light
Horn On
within
Digital
Display
B16204-R0-206D-UC-ENG 20/6/08 3:49 PM Page 8
