Checking Calomat 7 For Leaks - Siemens SIPROCESS GA700 Compact Operating Instructions

Commissioning
6.5 Checking gas paths for leaks
6.5.5

Checking CALOMAT 7 for leaks

Procedure
1. Connect a pressure measuring instrument (manometer) to the sample gas outlet.
Measuring range approx. 200 hPa rel. to 1000 hPa rel. with appropriate measured value
resolution (0.1 hPa).
Absolute pressure gauges with correspondingly good resolution are also suitable.
2. Connect the sample gas inlet to a compressed air source via a shutoff mechanism. The
shutoff mechanism must demonstrate a leakage rate < 10
3. Pressurize the analyzer module step-by-step with an overpressure of approx. 200 hPa.
4. Close the shutoff mechanism and wait for approximately 5 minutes until the sample gas
that flowed in has reached the ambient temperature.
5. Note the pressure.
6. Wait approximately 5 minutes. Note the pressure again.
If the pressure change lies under 5 hPa, the sample gas path is adequately tight.
This value is based on the tare volume of the measuring module 7 ml and the volume of the
pressure measuring device of 23 ml.
62
hPa*l/s.
-5
Devices in explosion-proof design
Compact Operating Instructions, 05/2018, A5E35134047-03