MAINTENANCE
6-7
5. Dip the entire PID sensor into GC grade methanol. It is
highly recommended that an ultrasound bath to be used to
clean the sensor for at least 3 minutes. Then dry the
sensor thoroughly.
6. If the lamp is operational, use a cotton swab to clean the
flat window surface with GC grade methanol. If the lamp
does not turn on remove the UV lamp.
7. Install a new lamp, avoiding contact with the flat window
surface.
8. Reinstall the PID sensor. Install the shielding cap.
9. Refer to Figures 6-2 and 6-3, install the gas plate and
tighten the four screws to hold down the sensors.
10. Replace the four allen screws holding the instrument
housing together.
11. Reinstall the battery pack.
12. Calibrate the instrument prior to placing it back into service.
