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Instructions for Use
5
Execute a calibration routine:
External leak:
For calibration in the E-10 range, the vacuum system must be sufficiently pumped
to reduce helium background below the E-10 range signal level. This is required to
achieve an acceptable signal-to-noise level and ensure accurate calibration.
E-10 range calibration is performed using an external calibrated leak. If an external
calibration is selected soon after system startup, the system evaluates the helium
background and determines if the background signal is sufficiently low to give an
accurate calibration. If the:
System has pumped out sufficiently, the calibration proceeds.
Background is changing, indicating the system is still pumping away
background helium, a countdown timer appears (see the following figure).
The system monitors the helium background and shows the time until the
calibration begins. Should you prefer not to wait, a Cancel button permits the
calibration request to be canceled.
The firmware initially starts at a large time interval, but recalculates the required
NOTE
time as the pumping continues. The new time is reflected on the timer.
Test Configuration Menu > Applications Setup > High Sensitivity automates and
NOTE
walks you through the E-10 External Calibration procedure.
36
Press Test on the front panel to place the system in test mode.
Select Menu Tab on the Home screen.
Select Calibration option.
Press Calibrate with Internal Leak Mode: Full.
The system performs an automated internal calibration of the system.
Press VENT to vent the leak detector and then install a calibrated leak into
the system test port and press TEST on the Home screen.
Select Calibration option from the Menus selection.
Press Calibrate with External Leak: Defaults fast only.
Enter external calibrated leak value.
Press Calibrate to perform an automated calibration. Press OK to return to
the Home screen.
Agilent Helium Leak Detector User Manual
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