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Technical Information
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 that only two decades of
signal be zeroed out.
Menus
Figure 24 Main Menu Select
Agilent Helium Leak Detector User Manual
Displays the Menus screen (see the following figure
and page 70)
65
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