Agilent Technologies 6890 Series Service Manual

11 of 46
Jun 2001
Inlets
Agilent 6890 Gas Chromatograph Service Manual
Programmed Temperature Vaporization Inlet (PTV) 240
Solvent vent mode
Stage 2: Sample transfer
When solvent venting ends, the solenoid valve closes and the inlet heats to
the final temperature. The sample transfers onto the capillary column.
Figure 240-5 Solvent vent mode flow control diagram: sample transfer
Split
vent
SPR
vent
SPR
PS
FS
PV1
PV2
Flow
limiting
frit
Column head
pressure
control loop
Septum
holder
Solenoid
valve closed
Cryo
valve
To de te ct or
PTV thermocouple PCB
Tra p

Agilent Technologies 6890 Series Specifications

General

Brand	Agilent Technologies
Model	6890 Series
Category	Laboratory Equipment
Language	English