Operating instructions

Installation and Connection
GMS810-/GMS811-FIDOR · Operating Instructions · 8013911 V1-0 · © SICK AG 23
Subject to change without notice
3.4 Preparing the gas connections
Fig. 4 Gas connections
WARNING: Hazards through leaky gas path
● Health risk when noxious sample gas leaks out.
● Risk of damage to the FIDOR and adjacent equipment if the sample gas is
corrosive or could create corrosive liquids in combination with water (e.g.
humidity).
● The measured values could possibly be wrong if the gas path is leaky.
 The gas lines to the FIDOR may only be laid by skilled persons who, based
on their training and knowledge as well as knowledge of the relevant regu-
lations, can assess the tasks given and recognize the dangers involved.
Contaminated operating gases can corrupt the measured values and damage
the analyzer unit and the catalyst.
 Observe the information on the operating gases and comply with the speci-
fications of the operating gases (
 p. 18, »Information on operating gases« and
 p. 74, »Gas supply«).
 Ensure that the gas pipes to the FID are clean:
– Free from particles (dust, chips)
– Free from hydrocarbons (grease, oil, solvents).
CAUTION: Risk of explosion when combustible or explosive sample gas is
used
 Do not use the FIDOR for measuring combustible or explosive gases.
 Fit a pressure monitor to the fuel gas pressure cylinder.
Signal output, for example, at 10 bar residual pressure (option).
 Use a leak detector to check the H
2
supply leak tightness.
1 Instrument air inlet
2 Combustion air inlet
3 Fuel gas inlet
4 Zero gas inlet
5 Reference gas inlet
6 Sample gas outlet (zero gas or reference gas)
7 Exhaust gas outlet
8Sample gas inlet
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1 2 3 4 5 6
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