D e t e c t i o n
NEO Photo-ionization detector
User Manual
D e t e c t i o n
24
8. Maintenance
8.1 LAMP CLEANING OR 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.
Always re-calibrate the PID after cleaning the lamp and/or sensor.
8.2 SENSOR CLEANING
1. Unscrew the sensor cap.
2. Pull the sensor straight out, using a slight rocking motion if necessary.
