Gas Connections - Siemens SIPROCESS GA700 Operating Instructions Manual

Continuous gas analysis

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Connecting

7.5 Gas connections

7.5

Gas connections

Danger of poisoning by escaping gas

Tighten the threaded joints in accordance with the mounting specifications of the

manufacturer using a suitable open-ended wrench. In the process, make absolutely sure

that you counter properly. Otherwise, there is a danger that the gas path will leak.

Danger of poisoning by escaping gas

The components in contact with the sample gas have to be resistant to the sample gas.

Otherwise, there is a danger that the gas path will leak and that sample gas will accumulate

in the analyzer.

Take appropriate precautions to prevent gas from escaping, e.g. by monitoring the flow

outside the analyzer.

Note

Reference gas connection

• The reference gas connection with PVDF screwed gland is only suitable for connecting

• The reference gas connection with ISO female thread is only suitable for connecting

Note

Shutting off the sample gas inlet and outlet

If you shut off the sample gas inlet and outlet, make sure that the reference gas can escape

(2-way valve at sample gas outlet).

Otherwise an excessive reference gas pressure can build up in the analyzer unit. The result

could be destruction of the internal pressure sensor or its connection to the analyzer unit.

Do not switch off the reference gas! Corrosive sample gases could lead to destruction of the

microflow sensor.

Ensure that the reference gas flowing via the sample gas outlet is discharged

environmentally-friendly!

WARNING

an external reference gas pump, see module nameplate of analyzer module 7MB3020-

xAxxx-xxxx, letter A at 2nd position of order no.

reference gas pressures up to 5000 hPa (abs.), see module nameplate of analyzer

module 7MB3020-xCxxx-xxxx, letter C, D or E at 2nd position of order number.

Operating Instructions, 01/2013, A5E31874006-01

Rack-mounted device

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