INFICON Operation | 6
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6.3 Settings for the measurements
6.3.1 Select gas type (mass)
The machine, calibration and sniff factor are dependent on the configured mass and
are saved in the mass spectrometer module.
2
3
4
H
2
(Hydrogen, forming gas)
3
He or deuterated hydrogen (HD)
4
He (Helium) (factory setting)
Control unit Main menu > Settings > Mass
LD protocol Command 506 with value 2 (3, 4)
ASCII protocol Command *CONFig:MASS 2 (3, 4)
6.3.2 Display equivalence leak rate for other gas
If you measure with the test gases helium or hydrogen, but want to display another
gas with its leak rate, use a correction factor for the test gas used.
Fig.3:
Measurement screen with displayed equivalence leak rate and configured favorites key
1 Display of gas name and equivalence factor
2 Favorites key for fast configuration of "gas equivalent selection" after set up,
see "Assigning favorite buttons [}44]"