Ei Electronics Ei261ENRC, Ei261DENRC manual Never Ignore the Alarm, CO Alarm Memory

B16132-R0-261ENRC-UC-ENG 7/11/07 11:52 AM Page 9

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 the horn to sound). 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.

2.4 CO ALARM MEMORY

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 detected as below:-

-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 approximately 90 minutes since reset or power-up.

-Red light flashes 4 times (in 2 seconds) every 40 seconds - 100 ppm CO detected for approximately 40 minutes since reset or power-up.

-Red light flashes 8 times (in 2 seconds) every 40 seconds - 300 ppm CO detected for approximately 3 minutes.

When the Test button is held, the digital display on the Ei261DENRC model shows the previous peak reading. This tells you if the unit has detected CO in your absence and helps to detect and locate leaks, monitor premises etc.

Reset Memory by holding down the Test button for over 20 seconds until the red light stops flashing. Cover the horn with a cloth to muffle the alarm during this time.

Please note that the memory will also be reset when the unit is removed from the mounting plate.

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