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Carrier supply
total flow in
100 psi
input pressure
Proportional
valve 1
Reduced flow
Full flow -
split flow path
Released: April 2004
Inlet pressure setpoint: 1.5 psi
Flow sensor
400
mL/min
Total flow
control loop
1
6850 Series Gas Chromatograph Service Procedures
Pressure sensor
5.9 psi
3
Split vent trap
Purge valve
2
4
Column flow
Septum purge
regulator
fixed @ 3 mL/min
open
Proportional
valve 2
Old style split vent trap
Split
vent
271
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