User guide

Inlets 8
Advanced User Guide 191
Vapor Volume Calculator
Agilent provides a Vapor Volume Calculator to help you
determine if a liner is suitable for a method. To use the
calculator install the Agilent Instrument utility provided with
the GC. The calculator is also provided with the Agilent
G4600AA Lab Advisor software.
MMI split and pulsed split modes
The two split modes—with or without a pressure pulse—divide
the gas stream entering the inlet between the column flow and
the split vent flow through the solenoid valve. The ratio of the
split vent flow to the column flow is called the split ratio.
The next figure shows the flows with split and pulsed split
modes.
Valve
Frit Frit
Valve
EPC Module
Valve
Split Vent Trap
MMI Weldment
FS = Flow Sensor
FS
PS
PS
Split
Carrier Supply
80 PSI
Septum Purge
C