SRS Labs QMS 100 Series, Руководство пользователя

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Technical Reference
Materials List
SRS receives many requests for information about corrosion compatibility. It is our policy not to
state the compatibility of our system with various corrosive environments. We simply cannot
test the myriad combinations of environments that our customers use.
We do provide a list of all the materials exposed to the gas being introduced into the system.
Our expectation is that users who need to measure corrosive environments already have some
type of system that creates, handles and contains the corrosive gases. Given that they have
designed and operate said system, they are the best people to decide the compatibility of the
materials in our system with the specific corrosive environment.
The QMS system contains the following materials:
Body

304 stainless steel - high vacuum tube

316 stainless steel - quarter inch tube and fittings

molybdenum - electrical feedthrough

ceramic - electrical feedthrough

AgCuIn - braze material on feedthroughs

alumina - contained in the spectrometer

aluminum - body of diaphragm pump
Replaceable Components

glass - body of electron multiplier

chromium - surface of the electron multiplier

IrO
2
·ThO
2
- filament of analyzer (can be substituted with tungsten)
Seals

copper - seals in the CF high vacuum flanges

316SS - major component of VCR
®
seals

silver - a thin layer on the VCR
®
seals to prevent gauling

Viton - o-ring seal in the inlet fitting (can be substituted)

buna-N - seals in the valves

neoprene - diaphragms in diaphragm pump

nitrile butyl rubber(NBR) - diaphragm pump valves - backing line

Tygon
®
- exhaust from diaphragm pump (can be substituted)