Hardware manual

Maintenance 4
Agilent 7500 Series ICP-MS Hardware Manual 4-111
Cleaning the Extraction and Omega Lenses
It is possible to clean the Extraction Lens, Omega Lens- ce (- cs), and Omega
Bias- ce (- cs) separately, but it is more efficient to clean them together.
There is normally no need to clean the spacers and screws. Be careful not to
touch the spacers and screws with your bare hands.
Perform the following procedure when cleaning the Extraction and Omega
Lenses.
1 Polish with polishing paper (#400).
The polishing paper can be used either wet or dry. Wet polishing paper is
easier to use when polishing the surfaces.
Polish the inner and outer surfaces of the cone, removing discoloration.
Roll the polishing paper into a cone when polishing the inside portions.
Figure 92 Example of Rolling the Polishing Paper into a Cone
WARNING
Do not clean with methanol or acetone. Using these in an ultrasonic bath presents a
fire hazard.
CAUTION
Do not deform the tip of the Extraction Lens.
Do not polish the skimmer base flange.
Polishing Paper
Cell Entrance Lens