Dansensor® LeakPointer 3/3
+
EN User Guide 77
P/N 380064-F
06/2021
1. Close chamber to start the test.
The test checks the following:
Ambient pressure:
The current ambient pressure. The limits for the test changes with the ambient
pressure.
System vacuum, 250 mbar:
A delta pressure of 250 mbar should be established in the chamber within the time
limit.
System tightness, -5.0 mbar:
The sample pump pumps gas from the chamber for 10 sec. During this time the delta
pressure in the chamber must not have decreased 5 mbar.
System vacuum, 750 mbar:
A delta pressure of 750 mbar (starting from 250 mbar) should be established in the
chamber within the time limit.
System tightness, -5.0 mbar:
The sample pump pumps gas from the chamber for 10 sec. During this time the delta
pressure in the chamber must not have decreased 5 mbar.
Pump tightness, -10.0 mbar:
(LeakPointer 3
+
models only)
The vacuum valve between the chamber and the pump is opened and the vacuum
pump is turned off. The delta pressure in the chamber must not decrease more than 10
mbar within the time limit.
System vacuum release:
The chamber vacuum should be released within the time limit.
2. If all tests are performed without errors, the screen will show:
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