Checking Gas Paths For Leaks; General Information On Leaks - Siemens SIPROCESS GA700 Operating Instructions Manual

More information on correction of cross-interference is available in the following operating
manuals:
● Operating with the Local User Interface Table A-2 References 1 - Operating Manuals LUI
(Page 159)
● Operation with SIMATIC PDM Table A-3 References 2 - Operating Manuals PDM
(Page 159)
9.6

Checking gas paths for leaks

9.6.1

General information on leaks

The analyzers may only be used if all the required gas inlet and outlet lines have been
connected prior to startup and tested with an overpressure for leaks and tightness.
The device operator is responsible for the required gas inlet and outlet lines.
Checking for leaks
1. Perform a leak test with air or nitrogen (test gas) at the operating temperature.
2. Determine the leak rate in accordance with the pressure drop method. To do this monitor
the pressure of the gas (air or nitrogen) enclosed in the gas line for a defined period. The
size of the pressure drop is a measure of the tightness of the gas line.
For the exact procedure, refer to the sections:
● OXYMAT 7 (Page 117)
● ULTRAMAT 7 (Page 117)
● CALOMAT 7 (Page 118)
Wall-mounted device
Operating Instructions, 05/2018, A5E31930403-06
Commissioning
9.6 Checking gas paths for leaks
115