6.1 Connect the wire correctly according to installation position and wire
connection instruction. Then connect the device to the power. Green
power LED is flickering and the detector enters into warm up status.
6.2 After 3 minutes of warm up, green power LED is on continuously and
the detector enters into normal working status.
7.
Calibration
Calibration is to adjust the value of the detector in the specific gas
environment so as to assure the detecting accuracy and reliability.
Normally, it includes zero calibration and single point calibration.
Calibration instruction is as follows:
7.1 Electrify the detector so as to ensure it can work normally.
7.2 Zero Calibration
7.2.1 Put the device into the clean air and keep it working for at least 10
minutes. Then 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 first digit of DIP switch to "ON". Red
LED starts to flicker and green LED is continuously on. The controller
displays 0. After several seconds, resume the first digit of DIP switch to
the original position, and the detector remembers the present level as
zero. Red LED flickers several times and then is off. Zero calibration is
completed.
7.2.2 If zero calibration cannot be carried out in the clean air, then please
follow the above instruction to enter into the calibration status. When the
first digit of DIP switch is to "ON" and red LED starts to flicker, inhale N2
gas or synthetical air onto the sensor continuously for more than 10
minutes. Then resume the first digit of DIP switch to the original
position, and the detector remembers the present level as zero. Red
LED flickers several times and then is off. Zero calibration is completed.
7.3 Single Point Calibration
7.3.1 Equipment
1 bottle of standard gas: normally the concentration is 40%F.S.
