Typical Valve Configurations
1140
OFF
ON
Custom Plumbing (Diagram Required), Option 800 or 830
Column
Detector
or 2nd Valve
Precolumn
1st Carrier
Out
Vent
Sample
In
Loop
2nd Carrier
OFF
ON
Gas Sampling with Backflush of Precolumn to Vent, Option 801 or 831
7 of 10
Valves
Jun 2001
Agilent 6890 Gas Chromatograph Service Manual