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Emerson Process Management GmbH & Co. OHG2-6
X-STREAM XEFD
Instruction Manual
HASXEDE-IM-EX
03/2012
2.3 Installation - Gas Lines
The gas paths need additionally to be
protected by suitable external inline ame
arrestors, designed and approved for the in-
stallation area and for the applied higher gas
pressure (above 1100 hPa to max. 1500 hPa;
see gas parameter specication 1-12 ).
These inline ame arrestors need to be in-
stalled outside the analyzer and in addition to
the ame arrestors provided by the analyzer.
Note!
The external inline ame arrestors are not
subject of the analyzer certication and may
be provided by the customer, or optionally by
EMERSON PROCESS MANAGEMENT.
A separate analyzer ame arrestor has to be
installed, operating as a breathing device,
limiting the internal pressure rise in case of
gas path leakage.
Connection of breathing device:
The external output of the breathing device (ex-
haust) may be open to the ambience of the ana-
lyzer, if the measured gas concentration is below
25 % V/V LEL. Otherwise it must end in a
safe area.
2.3.1.2 High Sample and Calibration Gas Pressures
2.3.1.3 Fastening Torques for Enclosure Components
1
4
2
3
1: Flame arrestors for gas path
2: Measuring system
3: Flame arrestor as breathing device
4: External ame arrestors, approved
for higher pressure
Fig. 2-6: Exemplary diagram for a single channel
instrument for high gas pressure
Fig. 2-7: Label with fastening torques,
installed at the instrument
Consider the permitted fastening torques,
when installing components to the enclosure,
as given on a label at the instrument!