Agilent Technologies Agilent 1260 Infinity System User's Manual page 14

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The Agilent 1260 Infinity Binary LC - Product Description
System Components
1260 Infinity High Performance Degasser (G4225A)
The Agilent 1260 Infinity High Performance Degasser , model G4225A,
comprises four separate vacuum chambers with semipermeable tubings, a
vacuum pump and control assembly. When the vacuum degasser is
switched on, the control assembly turns on the vacuum pump, which
generates a low pressure in the vacuum chambers. The pressure is
measured by a pressure sensor. The vacuum degasser maintains the low
pressure by a controlled leak in the air inlet filter and a regulation of the
vacuum pump using the pressure sensor.
The LC pump draws the solvents from their bottles through the
semipermeable tubes of the vacuum chambers. When solvents pass through
the vacuum chambers any dissolved gas in the solvents permeates through
the tubings into the vacuum chambers. The solvents will be degassed when
leaving the outlets of the vacuum degasser.
Figure 3
14
UHPLC
Pump
Solvent
Vacuum container
Overview (only one of the four solvent channels is shown)
Control
Sensor
circuit
4 separate vacuum chambers
1260 Infinity Binary LC - System User Guide
Vacuum
pump