Cleaning The Thermal Conductivity Detector - Agilent Technologies 6890 Series Service Manual

Cleaning the Thermal Conductivity Detector

After verifying that the carrier supply gas and flow system components are
leak- and contaminant-free, you can clean the detector by bakeout.
1. Turn off the detector.
2. Remove the column from the detector, then cap the detector column
fitting.
3. Establish a normal reference gas flow rate (20 to 30 mL/min) through
the detector (set oven temperature to 250°C).
4. Heat the detector to 400°C. Allow thermal cleaning to continue for several
hours.
Jun 2001
Thermal Conductivity Detector (TCD)
Cleaning the Thermal Conductivity Detector
Detectors
Agilent 6890 Gas Chromatograph Service Manual
330
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