1000ml/min gas flow meter
7.3.2 Procedure:
7.3.2.1 Hold both S2 and S3 buttons continuously for 1-2 seconds, the
green power LED starts to flicker, which indicates the device enters into
calibration status. Adjust the second digit of DIP switch to "ON" (which is
40%F.S calibration point. For details of calibration points, please refer to
the following table.) Red LED starts to flicker.
Note:
Without permission, nobody is allowed to adjust the DIP switch.
7.3.2.2 Connect gas bottle and gas flow meter correctly. Open the gas
bottle and adjust the flow meter according to the above table. Connect the
tube to the calibration cap of the detector. After 2 minutes of inputing gas,
when the controller displaying value will be the same with the standard
gas concentration, resume the DIP switch to the original position and the
detector will remember this value. Red LED flickers several times and
then is off. Then close the gas bottle and take off the tube. The calibration
is completed.
DIP
switch
Calibration
DIP
switch
Calibration
Zero calibration
10%F.S calibration
point
40%F.S calibration
point
20%F.S calibration
point
50%F.S calibration
point
60%F.S calibration
point
Note:
Black part is position of the DIP switch.
