Rheo F4
User’s manual
35
07/2015
4.4 Leak
test
The leak test principle is simple. The pneumatic circuit is
pressurised using the pump. Then the Rheo F4 will monitor this
pressure for at least 15 minutes. The procedure consists in
monitoring the entire circuit first. Then if there is a leak, the two sub
circuits will be used to locate the leak.
Before starting the test, ensure that the bowl is hermetically
closed (tighten the nuts correctly as for a test).
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Procedure:
Install the pump on the pneumatic circuit bleed.
Click on the tab [Tools] followed by [Pressure tests (leaks)].
The leak test screen is displayed:
Click on [Fill/Empty].
Press the pump until bowl pressure is greater than 70 mm.
Click again on [Fill/Empty].
Remove the pump.
Start the test by pressing the [TEST] button. Select the
COMPLETE circuit.
Wait 15s for pressure to stabilise.
The curve is displayed in real time. If there are no leaks in the
circuit, the curve is a horizontal straight line. A leak is present
when the pressure drop is greater than 10% after 15 minutes.
At the end of the test, click on [STOP] followed by [Fill/Empty] to
discharge all the pressure introduced into the circuit.
If the test shows a leak on a complete circuit , check the bowl seal
and the soda lime cartridge lid. Then, contact CHOPIN
Technologies.
