Maintenance and care
PlasmaQuant 9100 (Elite)
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Only slide the window as close to the torch as possible if you want to achieve the
lowest possible detection limits in the vacuum UV with radial observation. This,
however, presents the risk of the window fogging up more quickly, causing a drift as
a result.
Replacing the window in the
cone
The window in the cone is used for axial observation.
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Before cleaning: Activate the quick purge of the optics in the via the
ASpect PQ software in the Spectrometer window in the Parameters tab
via the [On] button.
Purging prevents contamination of the spectrometer with laboratory air.
If possible, switch off the laboratory exhaust system during cleaning.
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Move the torch downwards out of the working position.
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Remove the quartz bonnet from the induction coil.
These precautions prevent the glass parts from becoming damaged dur-
ing installation of the cone.
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Clean the cone with a damp cloth and dry it.
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Unscrew the cone with the supplied hook wrench.
If the window is stuck in its frame, see the description below.
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Close the opening to the optics during cleaning, for example with another
cone, to prevent contamination of the optics.
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Clean the window as necessary.
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Insert a new or cleaned window into the cone and fit a sealing ring.
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Replace the worn sealing ring.
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Screw the cone firmly back into the cone opening in the plasma compart-
ment.
NOTICE! If the cone is loose, it will not be cooled sufficiently and will
corrode quickly.
If the window is stuck in its frame:
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Hold a gloved hand underneath the cone opening.
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Carefully insert a fingernail of the second hand (with glove) or a stick (wood or plas-
tic) into the gap between the window and the frame and lever the window out. The
window falls out downward.
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Catch the windows as it falls out.
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Remove the sealing ring from the frame.