Vacuum Equipment And Cleanliness; O-Ring Care - Agilent Technologies Helium User Manual

Leak detector
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Instructions for Use

Vacuum Equipment and Cleanliness

Cleanliness is vital when servicing the leak detector or any vacuum equipment.
There are some techniques that are more important in leak detector servicing than
in general vacuum work:
Do not use silicone oil or silicone grease.
CAUTION
Use powder-free butyl or gloves to prevent skin oils from getting on vacuum
surfaces
Agilent does not recommend the use of vacuum grease.
NOTE
Vacuum grease absorbs helium tracer gas and releases this slowly resulting in
helium background during leak test operations. If it must be used, use it sparingly
and avoid silicone types.
Apiezon® L grease is recommended (Agilent Part No. 695400004).

O-ring Care

When removing, checking or replacing O-rings, keep in mind the following:
Agilent recommends replacing all O-rings during routine maintenance or during any
NOTE
maintenance procedure requiring that O-rings be removed.
Due to the effective cleaning nature of VacuSolv solvent and its residue-free
NOTE
properties, Agilent' Component and Spectrometer Cleaning Kit (Part Number
670029096), used in accordance with the kit instructions, is recommended for
cleaning spectrometer 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 are required following cleaning with
VacuSolv. Although appropriate precautions are advised, VacuSolv is compatible
with most materials and does not contain toxic chemicals or CFCs
(chlorofluorocarbons).
Other acceptable solvents are isopropyl alcohol (IPA) or Dow Corning® OS-20.
Agilent Helium Leak Detector User Manual
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