Ametek Thermox CEM O2/TM, User Manual

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Maintenance and Troubleshooting | 6-7
Thermocouple Failure
This error message occurs when the indicated sensor temperature fall
below -70° C. This error message can be the result of one of the following:

Open thermocouple

Faulty interconnecting wiring

Control unit display module failure
Verify Failure
This error message occurs if the verify gas does not read within the range
you defined. If you receive this message, calibrate the analyzer.
Zero Gas Range Error
This error message occurs if the calibration zero gas does not read within
the software’s allowable limits. Once this error occurs, calibration of the
system is aborted. This error indicates one of the following problems:

Calibration gas setup problem

Incorrect flow rates between calibrated gases

Process pressure incorrectly entered

Cell wiring reserved (Cell + and Cell - wires)

Failed cell (primary calibration should be run at this time)

Leak or plug in plumbing