AFRISO Europress Betriebsanleitung Seite 96

6.3.1 Function test by simulation
6.3.2 Function test by measurement
The free lateral connection of the red measurement valve is provided for
connecting a pressure measuring instrument to test the system.
Commissioning
1. Set the test valve (white connection) to position
"Vent".
- Air is supplied to the interstitial space of the tank.
- The pressure in the interstitial space drops and the
product triggers an alarm.
2. Set the test valve (white connection) to position "Nor-
mal Operation".
- The pressure in the interstitial space is re-estab-
lished.
- The alarm signals must switch off automatically.
1. Connect the pressure measuring instrument.
2. Set the measurement valve (red connection) to posi-
tion "Test".
- The pressure measuring instrument indicates the
pressure in the interstitial space.
3. Set the test valve (white connection) to position
"Vent".
- The pressure drops slowly.
4. Observe the pressure measuring instrument and
record the pressure values at which the pump and the
alarm signals are switched on.
5. Set the test valve (white connection) to position "Nor-
mal Operation".
- The pressure in the system increases slowly.
6. Observe the pressure measuring instrument and
record the pressure values at which the pump and the
alarm signals are switched off.
Europress
EN
38