PerkinElmer Photovac 2020, Manual

Page: 121 / 190

Routine Maintenance
119
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 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 116.