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Instructions for Use
Daily Maintenance
Sensitivity Check
To perform a sensitivity check:
1
Turn on the Std Leak in the Control Panel screen.
2
Compare the value on the Home screen to the value of the known calibrated
leak on the Internal Calibrated Leak screen.
3
If the values do not match, press Calibrate on the Control Panel screen to
perform an automated calibration and then repeat step 1.
If specification is still not met, Manual Tuning may be required.
See Section "Manual Tuning.
Dry Nitrogen Vent
You may want to vent the leak detector test port with dry nitrogen when the system
is vented. Venting with dry nitrogen can be helpful in very humid environments to
keep the test port as dry as possible which reduces the time required to pump
down the system.
The nitrogen supply line should have a pressure relief valve installed so that the
NOTE
pressure does not exceed two psi.
1
Press down on top of fitting and remove filter (see the following figure).
2
Install 6mm tubing for Dry Nitrogen venting.
Figure 15 Dry Nitrogen Vent
42
Agilent Helium Leak Detector User Manual
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