PerkinElmer AVIO 200, Hardware Manual

Page: 205 / 309

Maintenance
203
8. Lift the axial window and ring out of the mount — take care if the spectrometer
purge is set to high and you have not removed the axial window — the pressure
inside the spectrometer may force out the axial window.
9. If the window is dirty clean it by following the procedure Cleaning the Windows
on page 206.
10. If the window is damaged replace with a new axial purge window (Part No.
09992731).
11. Return the new axial 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 axial purge window into
place.
14. Return the Shear Gas Nozzle. See Returning the Shear Gas Nozzle on page 209.
15. Turn on the plasma.
Removing and Returning the Radial Purge Window
Caution
Attention
Do not leave finger marks on the window. Use an optical cloth to handle
the window. Normally you should install the radial window before the
axial window. This helps avoid objects or contamination falling into the
radial snout. If the axial window is already installed and the spectrometer
purge is set to high, the pressure inside the spectrometer may lift the radial
purge window unless you hold it in place until you have tightened the
retaining ring.
Ne pas laisser de traces de doigts sur la fenêtre. Utilisez un chiffon
optique pour gérer la fenêtre. Normalement, vous devez installer la fenêtre
radiale avant que la fenêtre axiale. Cela permet d'éviter la contamination
des objets ou de tomber dans le museau radial. Si la fenêtre axiale est déjà
installé et la purge du spectromètre est réglé à haute, la pression à
l'intérieur du spectromètre peut soulever la fenêtre de purge radiale, sauf si
vous le tenez en place jusqu'à ce que vous avez serré la bague de retenue.