6
ppm
Symptoms and applicable standard
400
frontal headache, life threatening after 3hrs. Maximum concentration in flue gas
per epA and AgA.
800
dizziness, nausea, convulsions, death w/i 2-3 hrs.
1600
nausea w/i 20 min; death w/i 2-3 hrs
opERAtIoN
1. power on/off
press
•
�
to turn on and off the meter. when meter is power on, the preset alarm value and
current air temperature will be blinking on the lCd.
Meter will perform Self-Test for 15 seconds. A beep after the self test indicates that the
•
meter is ready to use.
A 25
ppm
26 C
IMpoRtANt:
it is recommended to turn on the meter in an area free of Co since high Co level may cause
failure in passing Self-Test.
2. Alarm setting
The meter alarm is preset to 25ppm to warn about possible danger.
•
User can adjust the alarm level by choosing one. The available Co gas levels: 25, 30, 35, 45,
•
50, 70, 100 and 200ppm.
Release the pushbutton to select the preferred value. The meter will return to Self-Test
•
mode in a few seconds.
3. Measurement
The meter detects the existence of Co in the environment and displays the reading in ppm.
•
it also indicates the maximum value (at lower side of the lCd) of all readings.
Reset the maximum value by pressing
•
pushbutton for two seconds in measuring mode.
4. Backlight
press
pushbutton to turn on and off the backlight.
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