Agilent Technologies 6890 Series Service Manual page 668

Gas chromatograph
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Typical Valve Configurations
1140
Column 2
Carrier
Out
Sample
IN
Column 1
Loop
OFF
ON
Gas Sampling with Sequence Reverse, Option 804 or 834
Column2
Carrier
Out
Detector
Sample
or
In
2nd Valve
Column 1
OFF
ON
Gas Sampling with Sequence Reverse and Backflush of Column 1, Option 805 or 835
9 of 10
Valves
Jun 2001
Agilent 6890 Gas Chromatograph Service Manual

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6890a6890 plus

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