Installation
GMS800 · Operating Instructions · 8013025 V1.2 · © SICK MAIHAK GmbH 23
Subject to change without notice
3.3 Gas connections function
3.3.1 General criteria for sample gas feed
● In most applications, peripheral components for sample gas conditioning are required
in addition to the gas analyzer (e.g. dust filter, gas dryer).
● In some applications, disturbing physical effects that can falsify measured values must
be considered (cross-sensitivities, absorption, adsorption, diffusion).
● The complete analysis system must be planned and installed carefully to ensure trou-
ble-free measuring operation with low maintenance effort and excellent measuring
results. This is just as decisive for measurement quality as the gas analyzer itself.
3.3.2 Feeding sample gas (sample gas inlet)
b
Feed sample gas via the “sample gas inlet” of the enclosure.
b
Gas connections type and position
→
Supplementary Operating Instructions
for Enclosure
b
Physical conditions for the sample gas
→
Supplementary Operating Instruc-
tions for the Analyzer Modules fitted
Detailed information on analysis system design
→
Technical Information for
“Extractive Gas Analysis” (in preparation)
WARNING: Mortal/health danger as a result of a gas path leakage
When the unit measures toxic gases: Leaks in the gas path can be an acute
danger for persons.
b
Set up appropriate safety precautions (
→
p. 11, §1.5).
NOTICE:
b
Always install a fine dust filter in the sample gas feed to protect the gas
analyzer against contamination.
[1]
b
Prevent liquids penetrating the sample gas path in the gas analyzer.
b
Prevent condensation in the sample gas path of the gas analyzer. If the
sample gas contains condensable components, then only operate the gas
analyzer in conjunction with a sample gas conditioning system
→
Technical Information for “Extractive Gas Analysis”
[2]
b
Before feeding sample gas: Check whether the sample gas can chemically
attack the sample gas path materials.
→
Supplementary Operating Instructions for the Analyzer Modules fitted
[1] Even when the sample gas is free from particles: Fit a dust filter as safety filter so that the gas analyzer is protected
during operational malfunctions or defects.
[2] In preparation
WARNING: Hazards from noxious sample gases
b
When the sample gas contains substances dangerous to health: Check
whether additional safety precautions are necessary (
→
p. 11, §1.5).
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