Split/Splitless Inlet Splitless Mode Overview - Agilent Technologies 7820A Advanced User's Manual

Split
Valve
FS = Flow Sensor
PS = Pressure Sensor

Split/Splitless inlet splitless mode overview

NO T E
Advanced User Guide
Carrier Supply
80 PSI
Frit
Valve
FS
Split Vent Trap
In this mode, the split vent valve is closed during the injection
and remains so while the sample is vaporized in the liner and
transferred to the column. At a specified time after injection,
the valve opens to sweep any vapors remaining in the liner out
the split vent. This avoids solvent tailing due to the large inlet
volume and small column flow rate. Specify the purge time and
purge flow rate in the inlet parameter list.
Gas saver and pressure pulse mode are not supported on EPR (electronic
pneumatics regulation) equipped GCs.
If you are using gas saver, the gas saver time should be after the
purge time.
EPC/EPR Module
PS
Inlet Weldment
Column
3
Inlets
Septum Purge
Frit
29