Potential leak points
Check the following areas when checking an inlet system for leaks.
In the oven
•
Make sure the bottom of the inlet is correctly capped.
On the inlet
•
Septum
•
O-ring under inlet septum fitting at top of inlet
•
Liner ferrule seal at bottom of inlet
At EPC module
•
Three O-rings behind block where inlet pneumatic lines enter module
•
Two O-rings for each valve
•
Septum purge cap
Jun 2001
Leak testing—EPC and manual inlets
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Purged/Packed Inlet
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