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1. Single point calibration
Input the external barometric standard to standard pressure value, confirm and click on SAVE to finish calibration.
2. Dual point calibration
a. Connection
Connect the calibrator with external pressure source and provide greater standard of pressure.
b. Perform calibration
◆ Click on to perform calibration.
◆ Input the external pressure according to the calibrator’s notice. After the pressure is stabilized, click on
to go to next point;
◆ If the measured value has a big difference with the standard value, there will be notice by RED, the result
cannot be saved now;
◆ If the calibration point has a big difference with the measured value, there will be a notice, but it does not
influence taking effect.
◆ New calibration data takes effect immediately. The calibration date will be changed to the current system
date.
c. Restore the factory calibration data
Click on to restore the factory calibration data.
3.3.1.4 Electrical Calibration (ADT673 only)
1. Cancel zeroing
Cancel the recorded zeroing data.
2. Multi- point calibration
◆ Click on to perform calibration.
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