Ion Science Tiger - Manual (Page 40)

TIGER MANUAL Ion Science Ltd
Page 40 of 46 Unrivalled Detection. www.ionscience.com
Maintenance
Lamp Cleaning
The TIGER 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 TIGER is a sensitive detector. Internal components must be handled with clean hands and clean
tools. The TIGER lamp is fragile. Handle with great care!
First ensure that the TIGER 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 on page 39.
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. The instrument MUST now be re-calibrated.