Agilent Technologies 7890 Series User Manual

38 Advanced Operation Manual
3 Inlets
About Gas Saver
Gas saver reduces carrier flow from the split vent after the
sample is on the column. It applies to the Split/Splitless and
PTV inlets (all modes) and to the split and splitless modes
of the Volatiles Interface. It is most useful in split
applications.
Column head pressure and flow rate are maintained, while
purge and split vent flows decrease. Flows—except column
flow—remain at the reduced level until you press [Prep Run].
The pulsed modes of the split/splitless and PTV inlets are
similar except for the pressure pulse starting at [Prep Run]
and ending at Pulse time. The solvent vent mode of the PTV
is more complex; see “PTV inlet solvent vent mode“.
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01 234 567 8
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Split mode
Splitless mode
Split vent flow
mL/min
Split vent flow
mL/min
Time, min
Time, min
Gas saver flow
Gas saver flow
Gas saver flow
Gas saver flow
Purge flow
Regular flow
[Prep Run]
[Prep Run]
[Start]
[Start]
Gas saver time, 3 min
Gas saver time, 5 min
Run ends
Run ends
Purge time, 2 min

Agilent Technologies 7890 Series Specifications

General

Brand	Agilent Technologies
Model	7890 Series
Category	Laboratory Equipment
Language	English