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Technical Information
Clear
Zero
Pressing Zero while introducing helium tracer gas to the test object, or while the
NOTE
helium background is varying significantly, could result in the suppression of a real
leak. Only use the Zero button after the helium tracer gas source has been removed
The Zero capability allows the testing of sensitivity levels that are below the system
background. This feature also reduces test cycle times by reducing the amount of
time required for background levels to naturally clean up or by allowing testing to
begin at relatively high test pressures. It is recommended to zero out only two
decades of signal.
Menus Screen
Press Menus on the Home screen. The Menus screen appears (see the following
figure). Use the arrow to navigate to the previous screen.
The Menus screen consists of buttons to access the lower level screens used for
application-specific configuration.
Figure 27 Menus Screen
70
Clears the plotted graph. The graph automatically clears
when the leak detector is in roughing mode or at the start
of a new test.
Zeroes out the displayed helium leak. The leak rate must be less
than 4.0E-7, while in Test, to allow a cross over to Fine Test. This
button causes the leak detector to reset the leak rate display,
while the graph tracks the effect of the Zero command.
Agilent Helium Leak Detector User Manual
Press a
button to
access specific
configurations
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