16
8018429/1DWP/V3-0/2022-06| SICK
A D D E N D U M T O O P E R A T I N G I N S T R U C T I O N S | GMS840
Subject to change without notice
3
INSTALLATION
3.4.3
For GMS841 (ATEX/ IECEx) and GMS842 (
C
CSA
US)
3.5
Gas connections
3.5.1
Sample gas inlet
General notes
Information and safety information on sample gas connections
▸
See Operating Instructions “GMS800 Series”.
▸
See Addenda to the Operating Instructions for the fitted Analyzer modules.
3.5.2
Sample gas outlet
3.5.3
Feeding purge gas to an Analyzer module (option)
Only valid for versions with purge gas connections for an Analyzer module.
▸
Feed and discharge the necessary purge gas via the purge gas connections “Purge” as
described in the Addendum to the Operating Instructions of the Analyzer module,
“Dimensions, fitting position and connections”, page 27
▸
Feed and channel off purge gas so that the purge gas pressure in the line is not above
30 mbar.
▸
Use nitrogen (techn.) as inert gas.
3.5.4
Feeding purge gas for the enclosure (option)
▸
Feed the desired inert gas through the enclosure (
see “Dimensions, fitting position and
) via the purge gas connections.
WARNING: Risk of explosion
▸
Mounting may only be carried out by trained personnel.
▸
Do not carry out work on the device in potentially explosive atmospheres.
▸
Only use tools approved for Ex zones.
▸
If necessary: Install lightning protection.
Gas connections,
see “Dimensions, fitting position and connections”, page 27
WARNING: Risk of injury through contact with sample gas emerging
uncontrolled when the sample gas discharge is incorrectly dimensioned
Depending on the composition of the sample gas, a leak of the exhaust gas line or
improper design of the exit point of the gases can cause serious injuries to the skin and
respiratory system. For safe disposal of the sample gases:
▸
Design and install the exhaust gas line according to the mandatory occupational
safety regulations in the plant.
▸
Determine the correct length of the exhaust gas hose and the maximum pressure
head during the design of the exhaust gas lines.
▸
Screw the connections of the exhaust gas line tight, e.g. using 6 mm Swagelok
screws.
▸
Regularly check the exhaust gas line for leaks.
CAUTION: Safety risk
▸
Keep unused purge gas connections closed with the delivered sealing plugs.
Otherwise the specified enclosure degree of protection is not ensured.
