5. Model KN-COPP-B Operating Characteristics
Operating and Alarm Characteristics
LCD Display Shows
Alarm Sound
Unit Status
Recommendation
A steady display of
CO concentration
from 30-999. Red
LED flashes with beeps
4 quick beeps,
5 secs. silence,
repeating for 4
min.– then 4
quick beeps
every minute
Alarm condition.
Dangerous
concentrations of
CO detected
Refer to “What to do
When the Alarm
Sounds” (inside front
cover)
Brief “888” for
approximately 30
seconds
4 quick beeps,
5 seconds
silence,
repeated once
Self test when first
powered up or
after Test/Reset but-
ton is pressed
None – CO has not
been detected.
Numbers shown for
test purpose only
Steady “0”
displayed, dot flash-
ing every 5 seconds,
Green LED flashes every 30 secs.
None
Normal DC
operation with
good batteries
(sensing no CO)
None
Three battery seg-
ments displayed
None
Batteries are at full
capacity
None
Two battery seg-
ments displayed
None
Batteries are at 2/3
capacity
None
One battery seg-
ments displayed
None
Batteries are at 1/3
capacity
Replace all three AA
batteries
The following table illustrates the possible digital displays, describes the
audible alarm patterns, and the recommended actions to take.
The problems listed above are under normal operating conditions. Other
“Err” conditions could exist. If you should have any questions regarding
display conditions, call our Consumer Hotline.
When the unit is first powered up, the green
Operate LED flashes once every 30 seconds and
the digital display will show three “eights” –
indicating the alarm is in the start-up mode. The
three “eights” will remain for approximately 30
seconds. Then, the alarm will display “0” and
begin monitoring the air for CO and will contin-
ue to do so as long as it receives power.
This alarm will display a “0” if CO concentrations between 0 and 30
PPM have been detected within the last 15 seconds.
5. Model KN-COPP-B Operating Characteristics
LCD Display Shows
Alarm Sound
Unit Status
Recommendation
“LB” flashes alter-
nately with any
number, Red LED
flashes every 30 seconds.
Battery icon displays outline of
the battery
One quick beep
every 30 seconds
Remaining battery
capacity shown.
Batteries need to be
replaced
Replace all three AA
batteries immediately
“Err” displayed –
battery icon may
show any state of
battery capacity
One quick beep
every 30 seconds
Unit is Error condi-
tion
Replace batteries.
If “Err” (or blank
display) continues,
unit has malfunc-
tioned. Replace
immediately. Unit will
not respond CO
Display is blank
Constant alarm
Unit malfunction
Number from 11-
999 displayed. Top
segment of battery
icon displayed
None
Peak Level Memory
activated. Highest
concentration of
CO detected is dis-
played
Refer to section
below for informa-
tion regarding Peak
Level Memory
Operate
Test/
Reset
Green Operate LED
Peak Level Memory
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 battery fuel gauge
changes to show only the top segment of the battery
to indicate that peak level is being displayed. In this
example 120 PPM was the maximum amount of CO
recorded since the unit was last reset.
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 help-
ful 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.
If this happens, the CO alarm will detect the dangerous level and alarm,
notifying you and others of the conditions.
DO NOT ignore high con-
centration readings above 30 PPM or a CO alarming device that is
in alarm.
Sample Peak
Level Reading