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The following table illustrates the possible digital displays, describes the
audible alarm patterns, and the recommended actions to take.
Operating and Alarm Characteristics
LED Display Shows Alarm Sound Unit Status Recommendation
Brief “888” along
with any number
between 100 and 300.
Red LED flashes with beeps.
Green and amber LED’s on.
4 quick beeps,
5 seconds
silence,
repeated once
Self checking when
AC powered (Test
button was pressed
or unit was first
powered)
None – CO has not
been detected.
Numbers shown for
test purposes only
Steady “0”
Green LED
constantly on.
None Normal AC
operation (sensing
no CO) and with a
good battery
None
A steady display of
CO concentration
from 30-999. Red
LED flashes with beeps. Amber
LED shows initiating alarm.
4 quick beeps,
5 seconds
silence,
repeating
Alarm condition.
Dangerous
concentrations of
CO detected
Refer to “What to do
When the Alarm
Sounds” (inside front
cover)
“Lb” flashes
alternately with
any number.
Red LED flashes
every 15 seconds.
One quick
beep every
15 seconds
AC powered and
low or missing
battery
Install or replace 9V
battery.
Steady “CO”
Red LED flashes with
beeps. Amber LED
shows initiating alarm
4 quick beeps,
5 seconds
silence,
repeating
Interconnected CO
alarm warning of a
CO condition
Refer to “What to do
When the Alarm
Sounds” (inside front
cover)
“FirE”
Red LED flashes
with beeps
3 long beeps,
1 second
silence,
repeating
Interconnected
smoke alarm
warning of a
smoke/fire condition
Evacuate by your
escape plan
Steady “Err”
Red LED flashes every
30 seconds
One quick
beep every
30 seconds
Unit malfunction Replace battery.
If “Err” continues,
unit has malfunc-
tioned. Replace
immediately. Unit will
not respond CO
No display alternating
with display of CO
concentration every 60
seconds. Red LED
flashes with beeps
4 quick beeps,
5 seconds
silence,
repeating
every 60 secs
Alarm condition
powered on battery
backup. Dangerous
concentrations of
CO detected
Refer to “What to do
When the Alarm
Sounds” (inside front
cover).
Replace battery
No display alternating
with “0” every 60
seconds.
Green LED flashes
every 7 seconds
None Normal operation
after first 4 minutes
of 9 V battery
operation. Unit
monitoring for CO
Verify AC power is
restored as soon as
possible to conserve
battery.
Replace battery
Peak Level Memory (model KN-COP-IC only)
When the Peak Level button is pressed and held, the display shows the
highest CO reading taken by the CO alarm since its last reset or power
up. The Peak Level display feature will display levels between 11-999
PPM. Although the Peak Level feature will display levels below 30 PPM,
these levels will not result in an alarm no matter how long the device is
exposed to these levels. The Peak Level feature is helpful in identifying if
you have had a CO reading since resetting the alarm.
Concentrations of CO between 1 and 30 PPM can often occur in nor-
mal, everyday conditions. Concentrations of CO below 30 PPM may be
an indication of a transient condition that may appear today and never
reappear. Some CO conditions may start out as low level leaks but could
develop into CO concentrations that may become harmful.
Peak Level Memory Reset
Press the Peak Level button; with the button still pressed, press the
Test/Reset button for two seconds and release. The number on the dis-
play will tur
n to “0”, the memory will be cleared and the alarm will
begin monitoring for CO. The Peak Level memory is also reset when the
unit loses power.
8. Maintenance
NOTE: This unit is sealed. The cover is not removable.
Due to the loudness of the alarm, we suggest that you place your
fingers over the sounder opening while testing your alarm.
CAUTION: Continuous exposure to the high sound level of this
alarm over an extended period of time may cause hearing loss.
Testing
To test the alarm, press the T
est/Reset button. If the unit is operating
properly, you should hear 4 quick beeps – followed by 5 seconds of
silence – followed by 4 quick beeps. (For model KN-COP-IC with digi-
tal display: The display will show three “eights” and then show a num-
ber – usually ar
ound 200). The red LED will flash along with the beeps
and the amber LED will illuminate. Within several seconds the unit will
return to monitor for CO.
If interconnected to Kidde smoke alarms, pressing the Test/Reset button
on the CO alarm will have no effect on the smoke alarms. The smoke
7. Model KN-COP-IC (with digital display)
Operating Characteristics
7. Model KN-COP-IC (with digital display)
Operating Characteristics