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The FAULT indicator (yellow LED) is used to indicate
fault or warning status of the CO alarm.
2.3 ALARM indicator
The ALARM indicator (red LED) is used to indicate alarm
status of the CO alarm.
2.4 TEST/SILENCE buon
The TEST/SILECNE button is used to test the unit. Press
and hold to enable TEST function.
2.5 Alarm sounder
The alarm sounder is used to send out CO alarm warning
and fault warning information.
2.6 LCD screen
Indicates CO concentration and alarm status.
3. Understanding your CO alarm:
3.1 Start up
When first power on, the ALARM indicator (red), FAULT
indicator (yellow) and POWER indicator (green) will flash
once in turn, and then the buzzer will sound once, LCD will
display for 4S. This is the power on
prompt.
Then the LCD screen will display the countdown of 56s,
and the POWER indicator (green) will flash once every
second. This is preheated state, 60 seconds later the
POWER indicator (green) flashing every 40 seconds
indicates the unit is functioning properly.
During the preheated state, LCD displays count down, when
the countdown is "0", the product goes into normal operation.
NOTE: The purpose of LCD full segment code display during power
on prompt is to check whether the LCD screen is good or not.
NOTE: When the LCD is fully displayed, the " " does not mean
that the baery is low, the " " does not mean that the sound is
muted, and 888ppm does not mean that there is dangerous carbon
monoxide concentraon around.
3.2 Normal operaon
The POWER indicator (green) flashing once every 40 seconds.
The LCD displays current CO concentration.
CO concentration display range: 0~999
PPM
. If the CO
concentration is under 23
PPM
, the LCD will display "0PPM".
NOTE: When the CO concentraon detects an ultra-high concentraon
and is detected for more than 30s, the LCD screen will display "---" unl
the alarm exits.
3.3 CO alarm warning
When the device detects a dangerous level of CO, the device
will emit a loud alarm pattern. The alarm signal pattern is 4
beeps followed about 2.5 seconds of silence. The ALARM
indicator (red) will flash the same pattern. This cycle repeats
as long as a dangerous CO condition exists. Alarm sensivity
seng:
Conforms to EN 50291-1:2018
30PPM Without alarm before 120 minutes 50PPM:
Alarm between 60 to 90 minutes 100PPM:
Alarm between 10 to 40 minutes
300PPM: Alarm within 3 minutes
NOTE: Refer to “4. What to do if the alarm sounds” when you hear the
sounds of the CO alarm warning.
3.4 CO alarm warning silence
During the device under CO alarm mode, pressing the
TEST/SILENCE button, it will be paused alarm sound of the
device about 10 minutes. The ALARM indictor (red) will
keep flash as CO alarm mode, it indicates the device is
running into the CO alarm silence mode.
NOTE: The audible alarm signal will reacvate about 10 minutes from
the me the TEST/SILENCE buon is operated where the concentraon
of CO surrounding the alarm remains at 50 PPM or greater.
NOTE: The audible alarm signal cannot to silence if the alarm at
concentraon above 200 PPM.
NOTE: The alarm silencing acvaon to once throughout a CO alarm
period.
WARNING!-Before enable feature of CO alarm warning silence,
you should be conrmed that the alarm is due to dangerous levels of
carbon monoxide and the
dwelling should be venlated.
3.5 Low baery voltage warning
If the device chirps once every 40 seconds, with FAULT
indicator (yellow) will be flash. It indicates the battery is low.
The LCD displays always displays " ".
NOTE: When the low baery voltage warning is occur, the device has
capable of producing a CO alarm signal for at least 4 min or 30 days of
low baery voltage warning signal operaon.
NOTE: The device will not protect against the risk of carbon
monoxide poisoning when the baery has drained.
3.6 Low baery voltage warning silence
When the device is under the low battery warning, pressing
the TEST/SILENCE button, it will enter the low battery
voltage warning silence status for about 10 hours, meanwhile
it will appear " " on LCD, and FAULT indicator (yellow)
still keep flashing.
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