Vs C-15 Leak Detector Operating States; Leak Rate Vs. Time Screen - Agilent Technologies VS Series Operation Manual

Menus
Display
CALIBRATING
TUNING
VS Series Component Leak Detector
Pressing Zero while introducing helium tracer gas to the test
object or while the 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 or Helium background is stable.
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 soft key button, when pressed, opens the Menus screen
(Section 2.2.5 "Menus Screen" on page 2-22).
Figure 2-3 Leak Rate vs. Time Screen
Table 2-5 VS C-15 Leak Detector Operating States
Indicates that the leak detector is currently performing a Internal or External
Calibration Sequence.
Indicates that the leak detector is adjusting the ion voltage to find (move) the
peak He signal.
Description
2-13