Display Reading And What They Mean - Nighthawk KN-COPP-3 User Manual

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
ed electronic device – yet very simple to understand. Basically,
the unit will display a "0" if it does not sense carbon monox-
ide and if you have a good 9V backup battery installed.
If it senses carbon monoxide, it will display a reading so you
can see if you have a non-threatening or emergency situation.
Start-up and Normal Operation Readings
Display Shows
Brief "888" and
flashing dot
"Lb" and dot
flashes alternately
with "0".
(flashes alternately)
Steady "0"
and flashing dot
Steady display of
high number (in the 5 seconds off,
hundreds of ppm)
and flashing dot
If at any time you test the alarm and it does not perform as described, have it replaced immediately.
is a sophisticat-
alarm
Alarm Sound Unit Status
One short "chirp" Self checking when AC powered
One short "chirp" Start-up or reset phase when
every 15 seconds. AC powered and low battery
None Normal AC operation (sensing
no CO) and with good battery
4 quick beeps, High level of CO detected
repeat.
6-3
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
Please familiarize yourself and other family members to the
difference between a CO reading and a reading signifying a
problem with the alarm itself.
.
alarm
Recommended Action
None – Unit should quickly
return to zero.
Install or Replace 9V battery
Refer to page 1-4.
None
Refer to page 4-1