4. MEASURING PROCEDURE
4-1 CO measurement
1)Power on the meter by pressing the " Power Button "
( 3-2, Fig. 1 ) once,
* Press the " Power Button " once again will power
off.
2)Locate the " CO sensing head " ( 3-1, Fig. 1 )
to the position that intend to make the measurement.
The upper Display ( 3-5, Fig. 1) will show the CO
value in the unit of " PPM ". The lower Display ( 3-5,
Fig. 1) will show the Temperature ( Air Temp. ) value
in the unit of " " or " ".
℃
℉
4-2 Data hold
1)During the measurement, press the " Hold Button "
( 3-3, Fig. 1 ) momentarily to hold the measured
value. The LCD will show a " HOLD " symbol.
2)Press the" Hold Button " once again to release the
data hold function.
4-3 CO Alarm setting
Press the " Alarm Button " ( 3-4, Fig. 1 ) once in sequence
will present the Alarm setting value on the Display. Until
the desired Alarm value show on the Display, release the
" Alarm Button ", wait one second the Display will return to
normal screen. If the measurement CO value > Alarm
setting value, the Beeper will sound continuously.
* The Alarm setting value are :
25 PPM, 50 PPM 100 PPM, 200 PPM, 300 PPM, 400 PPM
500 PPM and OFF.
* If set the Alarm setting value to " OFF ", the Alarm
function will switch to " OFF " ( disable ).
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