User guide

132 Advanced User Guide
6 Checking for Leaks
To Correct Leaks in the Multimode Inlet
If the inlet fails a pressure decay test, check the following:
• Check the caps/plugs used in the test—make sure each is
correctly installed and tight.
• If you performed the leak test after performing maintenance,
check for proper installation of the part(s) handled during
the maintenance.
• Check the tightness of the septum nut. See To change the
septum on the Multimode inlet.
• Check the septum. Replace if old or damaged.
• Check the insert assembly installation.
• Check the liner and liner O- ring. See To change the liner and
O- ring on the Multimode inlet.
If these items do not resolve the problem, contact Agilent for
service.