Inlets 3
Advanced Operation Manual 139
Flow to the interface is measured by a flow sensor and
controlled by a proportional valve.
After sampling end
The interface is forward pressure controlled; pressure is
sensed downstream from the proportional valve. The system
returns to the idle state.
Valve
Frit
Frit
Frit
Valve
EPC Module
Gas Sampling Valve
Headspace
Purge and Trap
FS = Flow Sensor
PS = Pressure Sensor
Column
FS
PS
PS
Carrier Supply
80 PSI
Septum Purge