Checking Oxymat 7 For Leaks - Siemens SIPROCESS GA700 Kompaktbetriebsanleitung

Commissioning
6.5 Checking gas paths for leaks
Test setup for leakage test with ULTRAMAT 7 high-temperature
To check for leaks, we recommend the following test setup:
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③
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Figure 6-6
6.5.5

Checking OXYMAT 7 for leaks

Procedure
1. Close the reference gas inlet.
2. Connect the sample gas outlet to a pressure measuring instrument.
3. Apply a pressure of approximately 3 000 hPa (absolute pressure) to the measuring inlet.
4. Then block the measuring inlet.
5. Wait for approximately 5 minutes until the sample gas that flowed in has reached the
ambient temperature and the pressure is stable.
Note the pressure.
6. Wait an additional 5 minutes and note the pressure again.
If the pressure change is less than 5 hPa, the sample gas path is adequately tight.
This value is based on the tare volume of the measuring module of 7 ml and the volume of
the pressure measuring instrument of 23 ml.
70
Shut-off valve
Pressure regulator
Manometer (gauge pressure)
Sample gas inlet
Sample gas outlet
Unscrewing blanking plugs
Unscrewing blanking plugs
Recommended test setup for leakage test with ULTRAMAT 7 high-temperature
Devices in explosion-proof design
Compact Operating Instructions, 11/2019, A5E35134047-04