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CO ALARM
SAFETY AND SECURITY Step 5: P ut out the incense stick or cigarette appear on the graph. When the graph is full
by placing it into a dish of water. (i.e. the 6th segment is shown the unit will
Ensure that all flames have been sound a loud audible alarm (85 dB at 1m
extinguished. (3 feet)) and the Alarm LED below the
symbol on the front of the detector will flash
Note: If the level of CO in the sensor doesn’t red once every second.
reach 50ppm then the Sensor Test mode
will time out and finish automatically after The Alarm will sound
3 minutes. Even if the level doesn’t reach • Between 60 and 90 minutes when exposed
50ppm, as long as the display shows a
reading of CO then you can be confident to a minimum of 50ppm of CO.
that the alarm is working correctly. If you • Between 10 and 40 minutes when exposed
have any questions about testing the sensor
please contact the FireAngel technical to a minimum of 100ppm of CO.
support team • Within 3 minutes when exposed to a
minimum of 300ppm of CO.
Understanding the Product's Alarm silence
Indicators
Digital Display
The LCD screen has many icons with one or
more being shown at any one time.
Bar Graph to show early build up of CO. It is possible to temporarily silence the
alarm up to two times if the level of CO that
To understand the role of the product triggered the alarm is less than 200ppm. After
indicators please refer to section ‘Carbon ventilating the property you can temporarily
Monoxide and how it can affect your family’ silence the alarm by pressing the Test/Mode
on page 3 of the CO-9D User Manual. The button, the alarm will stop and the silence
alarm has a bar graph which mimics the way mode symbol will appear on the screen. The
CO levels build up in the blood stream. The silence mode will last for up to 3 minutes. If the
response times of the alarm are determined by CO level remains too high the alarm will trigger
the European Standard BS EN 50291:2001 so again or if the level of CO rises above 200ppm
the alarm will only sound when it has detected then the detector will automatically re-enter
CO for a prescribed length of time, the higher alarm mode. If the level of CO has fallen to a
the level of CO the quicker the alarm must satisfactory level the silence mode icon will
sound. However with FireAngel’s CO-9D disappear, the unit will exit alarm mode and
there is an early visual warning that CO is the segments of the bar graph will slowly
present. When CO is first detected the alarm disappear as the CO in the sensor clears.
indicates it’s presence by displaying the level
on the screen in parts per million (ppm). If CO Alarm in absence:
continues to be present additional bars will
If the Peak level reading symbol is
showing on the screen but there is no full
alarm sound and you are not pressing the
test button, then your detector is warning
that it has detected Carbon Monoxide in your
absence. Immediately vacate the premises and
seek medical attention for anyone suffering the
effects of CO poisoning (headache, nausea).
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