Lamp Cleaning - ion science CUB User Manual

CUB MANUAL
Maintenance

Lamp Cleaning

The Cub PID relies on an ultraviolet light source ionising VOC gases as they pass across the lamp window.
This process may result in a very fine layer of contamination appearing on the detector window that must be
removed on a regular basis.
CAUTION!
The Cub is a sensitive detector. Internal components must be handled with clean hands and clean
tools. The Cub lamp is fragile. Handle with great care!
First ensure that the Cub is turned off and that you are in a clean environment such that the sensor parts will
not be contaminated by dust, oil or grease.
Remove the lamp as detailed above.
Inspection of the lamp may reveal a layer of contamination on the detection window that presents itself as a
'blue hue.' To check for confirmation, hold the lamp in front of a light source and look across the window
surface. Clean the window using the PID Lamp Cleaning Kit (A-31063) supplied.
USE of PID Lamp Cleaning Kit A-31063
The container of cleaning compound contains Aluminium Oxide as a very fine power
(CAS Number 1344-28-1).
A full material safety data sheet MSDS is available on request from Ion Science Ltd. The key issues are
listed below:
Always replace the lid after using the cleaning compound.
Hazard identification:
May cause irritation of respiratory tract and eyes.
•
Handling:
Do not breathe vapour/dust. Avoid contact with skin, eyes and clothing;
•
Wear suitable protective clothing;
•
Follow industrial hygiene practices: Wash face and hands thoroughly with soap and water after
•
use and before eating, drinking, smoking or applying cosmetics;
The Compound has a TVL (TWA) of 10 mg/m3.
•
Storage:
Keep container closed to prevent water adsorption and contamination.
•
To clean the lamp:
1. Open the vial of Aluminium Oxide polishing
compound. With a clean cotton bud collect a small
amount of compound;
2. Use this cotton bud to polish the PID lamp window.
Use a circular action applying light pressure to clean
the lamp window. Never touch the lamp window with
fingers;
3. Continue polishing until an audible "squeaking" is
made by the cotton bud with compound moving over
the window surface (usually within fifteen seconds);
4. Remove the residual powder with short blast of air
from the can of air duster;
5. Replace the lamp holder into the MiniPID 2 Sensor.
Noting the procedure of lamp fitment given earlier under "Very Important Note".
6. Align the six pins on the MiniPID 2 Sensor (4) into the Instrument Body (6) and push in until
fitted.
7. Replace Sensor Cover (1) by screwing until finger tight.
8. The instrument MUST now be re-calibrated.
Unrivalled Detection. www.ionscience.com
Page 36 of 41
Ion Science Ltd