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Emerson Process Management GmbH & Co. OHG 1-5
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
04/2010
1.2 Conguration of Gas Lines
1.2 Conguration of Gas Lines
Various materials are available to allow the
analyzer to be customized to your needs.
The materials used are selected based on
the characteristics of the sample gas, e.g.
diffusion rate, corrosiveness, temperature
and pressure.
1.2.1 Materials Used
The physical and chemical properties of the
sample gas as well as the conditions under
which measurement takes place inuence the
choice of materials. Among those available
are Viton
®
, PFA and stainless steel.
1.2.2 Safety Filter
The analyzers are generally tted with an
internal stainless-steel lter. This lter is not
a replacement for any dust lter in the prepa-
ration of the gas, but represents a last line of
defence.
1.2.3
Gas Inlets and Outlets
Rackmounted and tabletop devices are tted
with PVDF inlets and outlets (ø 6/4 mm) as
standard. Alternatively, Swagelok™ or stain-
less steel ttings (ø 6/4 mm or
1
⁄4 in).
Wall-mounted eld housings are supplied
with Swagelok™ or stainless steel ttings (ø
6/4 mm or
1
⁄4 in).
Other materials available on request.
X-STREAM XEFD units are always supplied
with ame arrestors and stainless steel ttings
(ø 6/4 mm or
1
⁄4 in).
1.2.4 Tubing
Unless otherwise specied, the analyzers
are supplied with Viton
®
or PVDF piping
(ø 6/4 mm or
1
⁄4 in). Other materials (e.g.
stainless steel) can be used, depending on
the application.
1.2.5 Infallible Containments
Infallible containments are gas lines which,
due to their design, can be regarded as per-
manently technically tight. This is achieved
by, for example, welded joints, or metallically
sealing joints (e.g. tap connectors and bin-
ders), providing they are seldom disconnec-
ted. Gas lines congured in this manner can
be used for measuring noxious, ammable
and explosive gases. At the time of going to
press, infallible containments are available
for thermal conductivity analysis (TC) only.
Further information about infallible contain-
ments can be found in the separate instruction
manual supplied with these units.
Infallible containments do not
render it unnecessary to test for
leaks regularly, e.g. following
lengthy breaks in service, sub-
stantial alterations, repairs and
modications.
Read the separate instruction
manual giving detailed instruc-
tions on the conguration, ope-
ration and maintenance of units
fitted with infallible contain-
ments.
1
Technical Description