Gas Saver - Agilent Technologies 6890 Series Service Manual

Gas chromatograph

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Figure 250-4

Gas saver

Gas saver mode may be used in split or splitless operation mode. Gas saver

reduces the carrier gas flow from the split vent after the sample is on the

column. Column head pressure and the column flow rate are maintained,

while split vent flow decreases. Flows remain at the reduced level until the

beginning of the next run.

VI flow control diagram: direct mode (idle or after sampling end)

Agilent 6890 Gas Chromatograph Service Manual

Volatiles Interface

Theory of operation

6890a 6890 plus