Daily Maintenance; Dry Nitrogen Vent - Agilent Technologies G8610A Operation Manual

8.1 Daily Maintenance

8.1.1 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 7.4.3
"Manual Tuning" on page 118.

8.2 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.
1. Press down on top of fitting and remove filter (Figure 8-1).
2. Install 6mm tubing for Dry Nitrogen venting.
Agilent Technologies Helium Leak Detector
The nitrogen supply line should have a pressure relief valve
NOTE
installed so that the pressure does not exceed two psi.
Figure 8-1 Dry Nitrogen Vent
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