Maintenance; Cleaning Or Changing Pid Sensor / Lamp; Lamp Cleaning And Changing - WatchGas NEO Service Manual

Service Manual Photoionization Detector NEO
D e t e c t i o n D e t e c t i o n

2. Maintenance

2.1 CLEANING OR CHANGING PID SENSOR / LAMP

2.1.1 Lamp Cleaning and Changing

1. Unscrew the Sensor Cap and pull the sensor straight out, using a
slight rocking motion if necessary.
2. Put on finger gloves and pull out the lamp. Insert a new lamp, or
clean the existing lamp as described below.
3. Use a cotton swab wetted with methanol to clean the flat window
surface of the lamp. If greasy dirt is hard to remove using methanol,
the window can be polished using fine alumina powder polishing
paste.
4. Use a clean tissue to wipe the lamp window again.
5. Re-insert the cleaned lamp, plug in the sensor and screw on the
sensor cap.
6. Always re-calibrate the PID after cleaning the lamp and/or sensor.
www.watchgas.eu
5