Correcting Leaks - Agilent Technologies 6890 Series Service Manual

220 Purged/Packed Inlet
Leak testing—EPC and manual inlets
Caution
Aluminum bracket removed
for clarity, DO NOT completely
remove the bracket during
valve replacement.
O-rings
Supply fitting
O-ring
Septum purge fitting
Figure 220-13

Correcting leaks

1. Use an electronic leak detector to check all areas of the inlet and plumbing
that are potential sources of a leak.
2. Tighten loose connections to correct leaks, if necessary. You may need
to repeat the leak test.
3. If the pressure drop is now 1.0 psi or less, you can consider the inlet
system leak-free. If the pressure drop is much greater than this, continue
to search for leaks and repeat the pressure test.
18 of 20
EPC module serviceable parts
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Aluminum bracket
Jun 2001