BRK electronic CO2120PDN - Manual (Page 4)

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HOW YOUR CO ALARM WORKS
General Information
CAUTION!
Leave your CO Alarm plugged in year-round.
CO problems can occur any time during the
year, and this alarm can only alert you if it is
plugged in and receiving power.
This CO Alarm is intended for use in a standard,
unswitched 120V AC wall outlet. It is not intended
for use in extension cords, power strips, or outlets
controlled by a switch or dimmer. These may not
provide continuous power to the unit. When fully
powered, it samples the air and takes a new
reading about every second. A microchip inside
the unit stores each reading, and remembers the
levels of CO it has been exposed to over time. The
unit goes into alarm mode when it has been
exposed to a “critical” level of CO (measured in
parts per million or “ppm”) within a specified time
(measured in minutes). When the unit is in alarm
mode, the Digital Display will show the levels of
CO, measured in parts per million, present. This
Carbon Monoxide Alarm features a permanently
installed sensor, three colored indicator lights, and
an 85 dB alarm horn. It also has a silence feature
to temporarily quiet the alarm horn.
Malfunction Warning
This unit performs self-diagnostic tests
approximately every second. If the Alarm
malfunctions, it should be replaced
immediately.
The Cover Of Your CO Alarm
1
2
3
4
6
7
5
1 Test/Silence Button: Press and release
to select mode (Test, Peak or Clear Peak);
Press and hold to execute function (Test,
Peak or Clear Peak), or to silence the alarm.
2 POWER Light (Green)
3 SERVICE Light (Yellow)
4 ALARM Light (Red)
5 Digital Display: Shows carbon monoxide
levels, measured in parts per million.
6 Air Vents
7 Alarm Horn: 85db audible alarm for test,
alarm, and unit malfunction warning.