Reference
Varian, Inc.
User Manual Micro-GC
Page 31
REFERENCE
INSTRUMENT DESCRIPTION
CARRIER GAS
The Varian, Inc. Micro-GC is configured for the use with either He (or H
2
) or N
2
(or Ar).
Having chosen one option definitely rules out the use of the other without the
instrument undergoing internal changes prior to any switching of carrier gas
type.
It is recommended to use gases with a minimum purity of 99.995%. Since the injection
valve is operated pneumatically, there is a limit of 550 kPa ± 10 % (80 psi ± 10 %) to the
main gas supply.
Your Micro-GC is configured either for carrier gas He (or H
2
) or it is
configured for N
2
(or Ar). Use the carrier gas type, for which your instrument
is configured, otherwise the detector filaments can be damaged.
Summary of Contents for Micro-GC 490-GC
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