Kidde KN-COB-DP-LS User Manual
Page 14

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.
4 quick beeps,
5 seconds
silence,
repeated once
Self checking when
AC powered (Test but-
ton was pressed or unit
was first powered)
None – CO has not been
detected. Numbers
shown for test purposes
only
Steady “0” displayed.
None
Normal AC operation
(sensing no CO) and
with a good battery
None
A display of CO
concentration from 30-999.
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.
One quick beep
every
15 seconds
AC powered and low
or missing
battery
Install or replace 9V bat-
tery
Steady “Err “displayed
One quick beep
every 30 seconds
Unit malfunction
Replace battery. If "Err" con-
tinues, unit has malfunctioned
and must be replaced immedi-
ately. Unit will not respond to
CO. Press the Peak Level but-
ton while unit is in "Err"
mode to obtain error code
and call Product Support line.
No display alternating with
display of CO concentration
every 60 seconds.
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.
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 con-
serve battery.
Replace battery
6. Model KN-COP-DP-LS (with digital display)
Operating Characteristics
Whenever the alarm is operating, the digital display will display “0” to indi-
cate the unit is monitoring for CO. If the alarm senses dangerous levels of
CO, the digital display will indicate the CO concentration in parts per million
(PPM), and the alarm will emit an audible alarm pattern.
This alarm will display a “0” if CO concentrations between 0 and 30 PPM
have been detected within the last 15 seconds.
When the unit is first powered up, the digital display will show three
“eights” – indicating the alarm is in the start-up mode. The three “eights”
will remain for approximately 20 seconds. After 20 seconds, the alarm
should display “0” and begin monitoring the air for CO and will continue to
do so as long as it receives power.
“End” displayed.
Red LED flashes
every 30 seconds
Unit beeps 2
times every 30
seconds
End of unit life
Replace unit immediately.
Unit will not
respond to CO
2526-7206-00(820-1371 Rev. C).qxd:_ 2012.11.5 2:22 PM