INFICON 2020ppbPRO Portable Photoionization Detector - Manual (Page 85)

ISP-074-576-P1D 79
The UV lamp cleaning kit (Part No. MX380336) includes aluminum oxide powder
(3.0-micron powder) and cotton swabs. Additionally, you will require approximately
10 mL of methanol. When ordering methanol, specify purge and trap grade.
The instructions provided below are for 10.6 eV lamps. Refer to
Cleaning the Lithium Fluoride Window for special instructions to clean the 11.7 eV
lamp window.
WARNING
Never touch the UV lamp window with your fingers.
To clean the UV lamp:
1. Remove the lamp as outlined in Removing and Replacing the UV Lamp on
page 77.
2. Allow the lamp to cool to room temperature to avoid thermal shock,
which could crack the window.
3. Dampen a cotton swab in methanol and dab it into the cleaning
compound. Allow a small amount of the cleaning compound to adhere
to the cotton tip.
WARNING
Do not use methanol to clean the 11.7 eV lamp window.
4. Using small circular motions, rub the cleaning compound onto the lamp
window. Do not exert excessive force onto the window, since the
window can be permanently damaged by misuse.
5. Continue cleaning for approximately one minute.
6. Dampen a new cotton swab with methanol and remove any trace
amounts of the cleaning compound from the lamp window.
7. Wipe the window and the lamp with a dry, lint free tissue to remove any
trace amounts of the cleaning compound and methanol. All traces of
cleaning compound must be removed.
8. If you removed an O-ring from the lamp, replace it now. Ensure your
hands are clean and dry.
9. Without touching the lamp window, replace the lamp as outlined in
Removing and Replacing the UV Lamp on page 77.