Emerson Rosemount X-Stream Series, Инструкция по эксплуатации

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Emerson Process Management GmbH & Co. OHG
1-5
X-STREAM XE
Instruction Manual
HASXEE-IM-HS
10/2012
1.2 Configuration of
Gas Lines
1.2
Configuration of
Gas Lines
1.2.1 Materials Used
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.
Among those available are Viton
® ,
PFA and stainless steel.
1.2.2 Safety Filter
The analyzers are generally fitted with an
internal stainless-steel filter. This filter is not
a replacement for any dust filter 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 fitted
with PVDF inlets and outlets (ø 6/4 mm) as
standard. Alternatively, Swagelok™ or stain-
less steel fittings (ø 6/4 mm
or 1
⁄
4
in).
Wall-mounted field housings are supplied
with Swagelok™ or stainless steel fittings (ø
6/4 mm or 1
⁄
4
in).
Other materials available on request.
X-STREAM XEFD units are always supplied
with flame arrestors and stainless steel fittings
(ø 6/4 mm or 1
⁄
4
in).
Fieldhousings and 19 in analyzers provide up
to 8 gas fittings, so if featuring five channels,
this requires at least two channels in serial
tubing.
1.2.4 Tubing
Unless otherwise specified, 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 configured in this manner can
be used for measuring noxious, flammable
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 regu-
larly test for leaks, e.g. following
lengthy breaks in service, sub-
stantial alterations, repairs and
modifications.
Read the separate instruction
manual giving detailed instruc-
tions on the configuration, ope
-
ration and maintenance of units
fitted with infallible contain-
ments.
1
T
echnical
Description