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Figure 7: Span gas unit connections
1
Span gas connection 1
2
Span gas connection 2
3
Instrument air to purge the span gas valve
The Figure serves as example. It is also possible to connect more than two span gas
valves.
Prerequisites
•
The span gases are switched off.
Procedure
1.
Connect the span gas lines to the span gas unit.
2.
Turn the span gas to maximum pressure and set the pressure to approx. 3.5 bar.
3.
Check the lines for leak tightness.
5.4.9
Connecting the exhaust gas outlet
Important information
WARNING
Noxious and aggressive exhaust gases
The exhaust gases may contain harmful or irritating components.
b
Lead the measuring system gas outlets outdoors or into a suitable flue.
b
Do not connect the exhaust gas line with the exhaust gas line of sensitive subas‐
semblies. Aggressive gases could damage these subassemblies as a result of
diffusions.
NOTICE
Condensate could accrue in the exhaust gas line.
b
Use a suitable hose line to run the condensate outlet into an open condensate
container or a waste disposal line.
b
Lay the line so that it always runs downwards.
b
Keep the line opening free from any blockages or liquids.
b
Protect the line from frost.
5
MOUNTING
26
O P E R A T I N G I N S T R U C T I O N S | MCS200HW-MP
8026608/AE00/V1-0/2021-10 | SICK
Subject to change without notice