Cleaning The Pid Sensor; Cleaning The Lamp Housing Or Changing The Lamp - Honeywell MiniRAE 3000+ User Manual

Cleaning the PID sensor

Place the entire PID sensor module into GC grade methanol. It is highly recommended that an
ultrasound bath to be used to clean the sensor for at least 15 minutes. Then dry the sensor
thoroughly. Never touch the electrodes of the sensor by hand.
Also use a methanol-soaked cotton swab to wipe off the lamp housing where it contacts the
sensor when the sensor is installed.
Turn over the sensor so that the pins point up and the sensor cavity is visible. Examine the
sensor electrodes for any corrosion, damage, or bending out of alignment. The metal sensor
electrode "fingers" should be flat and straight. If necessary, carefully bend the sensor fingers to
ensure that they do not touch the Teflon portions and that they are parallel to each other. Make
sure that the nuts on the sensor pins are snug but not overtight. If the sensor is corroded or
otherwise damaged, it should be replaced.

Cleaning the lamp housing or changing the lamp

If the lamp does not turn on, the instrument will display an error message to indicate
replacement of the lamp may be required.
1. If the lamp is operational, clean the lamp window surface and the lamp housing by wiping
it with GC grade methanol using a cotton swab using moderate pressure. After cleaning,
hold the lamp up to the light at an angle to detect any remaining film. Repeat the process
until the lamp window is clean. Never use water solutions to clean the lamp. Dry the lamp
and the lamp housing thoroughly after cleaning.
Never touch the window surface with the fingers or anything else that may leave
a film. Never use acetone or aqueous solutions.
2. If the lamp does not turn on, remove the lamp from the lamp housing. Place the lamp O-
ring onto the new lamp. Insert the new lamp, avoiding contact with the flat window surface.
3. Reinstall the PID sensor module.
4. Tighten the Lamp Housing Cap.
Handheld PID Monitors
CAUTION
110 User Manual