Cleaning The Reaction Cell - Teledyne T200 Operation Manual

Teledyne API – T200 NO/NO

11.3.9. CLEANING THE REACTION CELL

06858E DCN7057
/NO Analyzer Operation Manual
2 X
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, it is necessary to remove it from the sensor housing.
1. Turn off the instrument power and vacuum pump. Refer to Figure 11-6 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 two screws (Teledyne API P/N SN144) and two washers holding the
reaction cell to the PMT housing and lift the cell and manifold out.
Figure 11-6: Reaction Cell Assembly
Instrument Maintenance
221