B16132-R0-261ENRC-UC-ENG 7/11/07 11:52 AM Page 8
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 (Model Ei261DENRC only) 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
CO Level | Red | Horn sounds |
(ppm) | Alarm Light | within |
0 | Off * | Off |
50 | 1 Flash / 2 Seconds | 60 to 90 minutes |
100 | 2 Flashes / Second | 10 to 40 minutes |
300 | 4 Flashes / Second | 3 minutes |
*unless it has been in alarm (see 2.4 CO Alarm Memory overleaf)
If your CO Alarm sounds follow the instructions on page 5.
When ventilation is provided by leaving windows 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.
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