Siemens SIPROCESS GA700 Operating Instructions Manual page 109

3. Apply a pressure of approximately 1 500 hPa (absolute pressure) to the measuring gas
inlet. Then close the measuring gas inlet.
4. Wait for approximately 1 minute until the test gas that flowed in has reached the ambient
temperature.
5. Note the pressure.
6. Wait approximately 5 minutes. Note the pressure again.
If pressure change is < 28 hPa, or < 34 hPa in the case of versions with an external reference
gas pump, the sample gas path is adequately tight.
Rack-mounted device
Operating Instructions, 05/2015, A5E31874006-03
Commissioning
9.3 OXYMAT 7
109