Cleaning The Windows - PerkinElmer AVIO 500 Customer Hardware And Service Manual

Maintenance
240
5. With the tool in place rotate the tool to loosen the stainless steel ring.
6. With the ring now loosened carefully unscrew the radial purge window mount
the rest of the way by hand.
7. Remove the ring that holds the radial purge window in the mount
8. Lift the radial window and ring out of the mount — take care if the
spectrometer purge is set to high and you have not removed the radial window,
the pressure inside the spectrometer may force out the radial window.
9. If the window is dirty clean it by following the procedure Cleaning the
Windows on page 240.
10. If the window is damaged, replace with a new radial purge window (Part No.
N0810346).
11. Return the new radial purge window in the stainless steel ring to the
instrument.
12. Carefully screw it into place.
13. Use the tool to tighten down the stainless steel ring and radial purge window
into place.
14. Return the Shear Gas Nozzle. See Returning the Shear Gas Nozzle on page
245.
15. Turn on the plasma.

Cleaning the Windows

Do not rub the surfaces of the windows before you have cleaned them as
Note
described below. The more you rub the surface of the windows, the more
chance there is of scratching them. You must discard scratched windows.
Allow to dry completely before reinstalling. If there is any moisture on the
inside of the window, it can degrade the UV performance and/or damage
the optics.