afriso Europress Notice Technique page 96

6.3 Function test
Perform the function test at the following occasions:
• After each commissioning
• After each alarm
• Once per year during maintenance
Have the function test performed and documented by a specialised com-
pany. A test report on the function test must be created and kept with the sys-
tem documentation.
The overpressure safety valve may only be adjusted and calibrated by the
manufacturer or by trained staff.
6.3.1 Function test by simulation
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 audible alarm and the visual alarm must switch
off automatically.
Europress
EN
38