990 CLD Autoline™ Leak Detector
DRAFT 2/2/04
4-1
Section 4. Maintenance
NOTE
CLEANING THE SPECTROMETER TUBE — Due to the
effective cleaning nature of VacuSolv solvent and its
residue-free properties, the Vacuum Technologies
Vacuum Component and Spectrometer Tube Cleaning Kit (PN
670029096), used in accordance with the kit instructions, is
recommended for cleaning the spectrometer tube components.
The kit can also be used for fine cleaning of other parts in the
leak detector's vacuum system such as valves and fittings. No
rinsing steps or high-temperature drying is required following
cleaning with VacuSolv. Although appropriate precautions are
advised, VacuSolv is compatible with most materials and does
not contain toxic chemicals or CFCs.
Do not use silicone oil or silicone grease. Although these
products are generally excellent for vacuum systems, they
cause loss of sensitivity in mass spectrometer leak detectors
through build-up of invisible insulating layers in the
spectrometer tube.
CAUTION
Do not use Freon TF or other solvents on O-rings. Doing so
causes deterioration and reduces their ability to hold a vacuum.
Wipe with a clean, lint-free cloth and use a small amount —
just enough to make the O-rings shiny — of Apiezon L grease
(PN 5000695400004).
Where applicable, inspect for any damage to O-rings. Remove
them carefully with your fingers. Do not use any metal tools for
this task which can scratch the sealing surfaces.
CAUTION
Do not clean any aluminum parts with Alconox. Alconox is not
compatible with aluminum and will cause damage.
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