Siemens FIDAMAT 6 - Page 59

Commissioning
6.2 Preparation for commissioning
FIDAMAT 6
Operating Instructions, 01/2019, A5E00222135-04
57
Procedure
1. Connect the gas outlet to a relative pressure manometer (0 to 1000 hPa, resolution
1 hPa).
2. Generate an overpressure of approximately 750 hPa for about one minute and then stop.
3. Wait about 10 minutes until the pressure has equalized. Then record the pressure.
4. Wait another minute, and read off the pressure again.
If the pressure drop within one minute does not exceed 12 hPa, the gas path is sufficiently
tight.
Note
During the measurement, the gas path, including the FID, must have a constant
temperature.
Test conditions:
The specified pressures are relative pressures.
Calibration gas:
Synthetic air (sample gas path must not be contaminated)
Test pressure:
Operating pressure x 1.5 (operating pressure = 500 hPa)
Device electrically switched off:
Test pressure [hPa] relative
Permissible pressure drop Δ p
[hPa] relative
Sample gas path
750 +10
Δp 12
Supply gas inlets
3000 +100
Δp 17
Pressure equalization times: Chronological test sequence
Note
After applying the test pressure, note the start and end of the
measurement for determining
Δp.
Start of measurement x min
after
applying test pressure
End of measurement y min after
applying test pressure
Sample gas path
2
3
Supply gas inlets
1
2