Diagnostics Checks - Ametek Thermox Series 2000 WDG-IV User Manual

Diagnostics Checks

This section shows you how to check different sensor areas for possible
problems. See the "Error Messages" section for help on what checks you
should perform based on the error message displayed. If you don't see an
error message, yet feel your readings are inaccurate, you may also want
to check the "General Troubleshooting" section that follows. We recom-
mend that the thermocouple millivolts and cell millivolts be displayed
during troubleshooting as a troubleshooting aid (see the "Display" section
in Chapter 4 for help on how to display these items). This information will
be helpful should you need to contact the factory for assistance. Be sure to
always include your analyzer model and serial number when calling the
factory for technical support.
Diagnostic checks are broken down as follows:
Wiring Checks

Thermocouple Checks

Calibration/Aspirator Setup Checks

AC Power Checks

Furnace Checks

Process Pressure Checks

Cell Checks

Exercise care when working on the sensor. Turn off power, allow the
unit to cool, and wear gloves.
Maintenance and Troubleshooting | 6-5