Optical Engine: Maintenance and Cleaning
Cleaning PID Sensor
EVM Series User Manual
6. To refit the lamp and electrode pellet properly, it is recommended to twist the lamp into the O-ring
of the electrode pellet (twist clock-wise one full turn) ensuring you use a cloth (with no fibers).
7. Then, lower into the PID sensor as displayed below.
Figure 7-6: Fitting/Inserting the lamp and pellet
8. Place the plastic Intel-sensor casing over the sensor. Press firmly to snap it into place.
9. Insert it back into the sensor housing as explained in “Removing and inserting PID sensor”.
10. After cleaning, you need to perform a zero and span calibration (see PID calibration.)
Optical Engine: Maintenance and Cleaning
The optical engine should be cleaned when the following conditions occur:
It will not zero
Exposed to oily or wet mists.
Readings are falling lower and lower indicating dirty mirror
Electrode Pellet and lamp attached
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