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NEVER IGNORE THE ALARM.
Pre-Alarm: When the alarm detects over 50ppm CO the red light flashes every 2
seconds. This helps locate CO leaks as the unit gives an indication straight away.
(Without this feature the CO level would need to be at 50ppm CO for 90 minutes for
an indication to be given). Note the Pre-Alarm signal may be triggered by CO coming
for example, from cooking with gas, from car engines or from nearby barbecues. This
is usually not a concern, unless the Pre-Alarm signal persists until the alarm sounds
and the CO source is unknown.
NOTE: The CO Alarm may sound if cigarette smoke is blown into it, or aerosols are
released nearby.
CO ALARM MEMORY (Ei205EN, Ei205ENA & Ei205CEN only)
- Red light is Off – No CO detected since reset or power up.
- Red light flashes 2 times (in 2 seconds) every 40 seconds, 50 ppm CO detected
for at least about 90 minutes.
- Red light flashes 4 times (in 2 seconds) every 40 seconds, 100 ppm CO detected
for at least about 40 minutes.
- Red light flashes 8 times (in 2 seconds) every 40 seconds, 300 ppm CO detected
for at least about 3 minutes.
When the test button is pressed the horn will sound, and the red light will only flash if
the unit has previously detected CO and been in alarm. The flash rate indicates the
level of CO as in Table B.
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