Cleaning The Reaction Cell - Teledyne T200H User Manual

Instrument Maintenance

6.3.5. CLEANING THE REACTION CELL

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9. Re-attach the tube fittings to the converter and replace the insulation and cover.
10. Replace the instrument cover and power up the analyzer.
11. Allow the converter to burn-in for 24 hours, then re-calibrate the instrument.
The reaction cell should be cleaned whenever troubleshooting suggests. A dirty reaction
cell will cause excessive noise, drifting zero or span values, low response or a
combination of all. To clean the reaction cell, remove it from the sensor housing: refer
to Section 7.6.5 for an overview of the entire sensor assembly. Use the following guide
to clean the reaction cell:
1. Turn off the instrument power and vacuum pump. Refer to Figure 6-4 for the
following procedure.
2. Disconnect the black 1/4" exhaust tube and the 1/8" sample and ozone air tubes
from the reaction cell. Disconnect the heater/thermistor cable.
3. Remove four screws holding the reaction cell to the PMT housing and lift the cell
and manifold out as shown in the inset of Figure 6-4.
Teledyne API - Model T200H/T200M Operation Manual
07270D DCN7141