Nighthawk KN-COEG-3 manual Part Six - Display Reading and What They Mean

Part Six – Display Reading and What They Mean

Page 6-3 and 6-4 contain vital information about the various readings you may see on your display. We suggest you keep this User’s Guide handy for reference.

Your new Nighthawk carbon monoxide and explosive Gas alarm is a sophisticated electronic device – yet very simple to understand. Basically, the unit will display a “0” if it does not sense carbon monoxide or Gas and if you have a good 9V backup battery installed.

If it senses carbon monoxide, it will display a reading in parts per million of carbon monoxide or “GAS” if either natural Gas

or propane has been detected..

However, if the backup battery is low or missing, or if the unit malfunctions it will display other readings (and alarm differ- ently) to alert you that something is wrong with the alarm.

Please familiarize yourself and other family members to the difference between a CO reading, a Gas reading and a reading signifying a problem with the alarm itself.

Start-up and Normal Operation Readings

Display Shows Alarm Sound Unit Status Recommended Action

Brief “888” One short “chirp” Self checking when AC powered (Test button was pressed or unit was first powered).

None – Unit should return to zero within a minute..

“Lb” flashes	One short “chirp”	Start-up or reset phase when
alternately	every 15 seconds.	AC powered and low battery
with “0”.		or missing battery.

(flashes alternately)

Install or Replace 9V battery Refer to page 1-4.

Steady “0”	None	Normal AC operation (sensing	None
and flashing dot		no CO or Gas) and with good
		battery
Steady display of	4 quick beeps,	High level of CO detected	Refer to page 4-1
high number (in the	5 seconds off,
hundreds of ppm)	repeating.
and flashing dot
GAS	1/2 second	Unit has	Refer to
	beep, 1/2 second	detected Gas.	page 4-2.
	silence repeating

If at any time the alarm does not perform as described, have it replaced immediately.

6-3