PEMTECH PT2000/H Series - 9.1 Calibration Error and Troubleshooting

49
Operators Manual Model PT2000/H Series Gas Monitor Rev 2. January 2014
9.1 Calibration Errors, Troubleshooting and Remedies
Error 1: Sensor Zero too high.
The microprocessor was unable to make initial adjustment. The output from the
sensor-element is too high to adjust. This error can occur during step 4 of the
calibration procedure. A short sensor-element could result in this error. Check if
sensor wires are connected properly and firmly to the sensor terminals.
Error 2: Sensor Zero too low:
The microprocessor was unable to make initial adjustment. This error can occur during
step 4 of the calibration procedure. Check if the sensor wires are not loose and are
connected properly to the terminals. Also check that the sensor supply voltages are
correct.
1.5 LPM Flow
Regulator
Calibration Gas
cylinder
Calibration
Adapter with
tubing
Figure 12. Sensor Calibration