Agilent Technologies 990 User Manual

5 Micro GC Channels
Carrier Gas
62 Agilent 990 Micro GC User Manual
Carrier Gas
The Micro GC is configured for use with either He and H
2
or N
2
and Ar.
Agilent recommends you use gases with a minimum purity of 99.999 %. Since the injection valve
is operated pneumatically, there is a limit of 550 kPa ±10 kPa (80 psi ±1.5 psi) to the main gas
supply.
CAUTION
Your Micro GC is configured either for carrier gas He and H
2
or N
2
and Ar. Use the carrier gas
type for which your instrument is configured, otherwise the detector filaments can be damaged.
Figure 25. Gas flow diagram
Dynamic
electronic gas
control (DEGC)
Columns
(analytical and
reference)
µTCD
Sample in
Gas clean unit
(optional)
Carrier gas
Reference vent
Injector
Column vent
Sample out

Agilent Technologies 990 Specifications

General

Brand	Agilent Technologies
Model	990
Category	Laboratory Equipment
Language	English