BRK electronic CO5120PDB What You See and Hear Under Different Conditions continued, Horn, Power

What You See and Hear Under Different

Conditions (continued)...

If battery becomes low or is missing

Horn	Chirps once
	a minute*
Display	The word “bat”
	flashes on and off
POWER/	Flashes once a
ALARM Light	minute

*Note: If the battery becomes very weak, you will hear extra “chirps.” Replace the battery immediately!

Disconnect AC power before changing battery. Shock hazard exists if AC power is miswired.

If the CO alarm is not operating properly

Horn	Three rapid chirps
	every minute
Display	Displays “Err”
POWER/	Flashes three

ALARM Light times in sync with the horn

WHAT YOU SEE AND HEAR IF CO IS DETECTED Pre-Alarm Levels

Horn	Silent
Display	Shows CO levels
	detected in ppm
POWER/	Shines
ALARM Light	continuously
Alarm levels of CO are detected (Over 70 ppm)
Horn	Sounds loudly -
	4 beeps, pause,
	4 beeps, pause.
	This sequence
	repeats for as
	long as the unit
	is in alarm*
Display	Shows CO levels
	detected in ppm
POWER/	Flashes once
ALARM Light	per second

*Note: If unit goes into alarm under battery back-up power, the regular 4 beeps-brief pause cycle will repeat for four minutes. After four minutes, the pause will increase to 1 minute.

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