MAINTENANCE
7-8
4. Remove the shielding cap for the PID sensor. Gently
pull out the PID sensor. Note the sensor is made of
Teflon and stainless steel material.
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 Figure 7-2, install the gas piping plate and
tighten the four screws to hold down the sensors. Re-
connect the battery pack. Install the monitor cover.
