210 Split/Splitless Inlet
Manually controlled inlet
6 of 30
Jun 2001
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Splitless mode
For a manual inlet in splitless mode, V1 is a manually regulated mass flow
controller that controls total inlet flow. The Purge Control Valve (PCV) is a
three-way solenoid valve that switches prior to injection to divert the higher
part of the flow across the top of the liner, through the PCV and out the inlet
split vent. At a user specified time after injection, the valve switches back to
split mode (see Split mode) to purge remaining sample vapor out of the inlet
split vent. V2 is a manually controlled back pressure regulator in the split
vent path controlling the inlet pressure and thus, flow through the column.
SPR is a manually controlled septum purge regulator used to control the
septum purge flow.
To Next Page
Loading...
Need help?
General
