Agilent Technologies Helium User Manual page 66

Leak detector
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Technical Information
Power Off
Figure 25 Power Of Dialog
Zero Enable
66
Performs a soft shutdown procedure of the leak detector.
Applies a turbo braking routine and exits the CPU's
operating system safely. Prompts that the leak detector can
be powered down (see the following figure).
Turns on or off the zeroed out background. This feature
excludes the background leak from the leak rate signal.
Helium background represents helium that is in the system
but does not come from the part under test. If the
background is zeroed out, a more accurate measurement
of the leak rate of the part is determined. If Zero Enable is
turned ON, the background is excluded; if it is turned OFF,
the system displays the full helium signal, including total
background
Agilent Helium Leak Detector User Manual

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