9
３−４．
Check of the flowmonitor
When turn on power, the pump starts working. Check that it works properly by the flowmonitor
(float) of filter tube with the flowmonitor.
When sucking properly (Can see the float)
Not sucking properly (Cannot see the float)
３−５．
Zero adjustment
Make zero adjustment by removing the gas sampling tube. After the detection starts, see the
flowmonitor and check that the air is sucked properly. Then, check that the reading gets stable
and make zero adjustment by sucking the fresh air into instrument.
The operation procedure is shown below.
０．０％ＬＥＬ ２０．９％
（
Gas display
）
↓
ＨＯＬＤ ＺＥＲＯ ＫＥＹ
Hold pressing
ＺＥＲＯ
for approx. 3 sec.
↓
ＡＰＰＬＹ ＦＲＥＳＨ ＡＩＲ
After checking that fresh air is sucked into instrument
↓
and then, press
ＥＮＴＥＲ
switch.
ＡＤＪＵＳＴＩＮＧ ＺＥＲＯ
Zero calibration failure
Approx. 5 sec.
↓
①
ＺＥＲＯ ＳＥＴ ＯＫ
Approx. 5 sec.
↓
０．０％ＬＥＬ ２０．９％
（
Gas display
）
Float
Float
