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Agilent 490 Micro GC Natural Gas Analyzer
User Manual
Agilent Technologies
Appendix D: Carrier Gas Type
Configuration
The Agilent 490 Micro GC - Natural Gas Analyzers are factory
tuned using the carrier gas helium. When analysis of helium is
required, the carrier gas must be changed to argon.
Instruments with the dual carrier option are typically
configured as shown in Figure 28.
Figure 28 Typical configuration of a dual carrier instrument
Natural Gas Analyzer B Extended, quad channel cabinet
Channel 1
MolSieve 5A
Channel 2
PoraPLOT U
Channel 3
CP-Sil 5 CB
Channel 4
Empty slot
Carrier gas 2
Carrier gas 1