Gas Correction Factor - Pfeiffer PPT 100 Operating Instructions Manual

Technical data and dimensions

10.3 Gas correction factor

1000
100
10
1
0,1
0,01
0,001
0,0001
0,0001 0,001
18
0,01 0,1
real pressure (mbar)
Fig. 8: Dependent on gas type PPT 100 (Pirani)
Pirani correction factor:
N 1.00
2
Air 1.00
H 0.58
2
He 1.02
Ar 1.59
CO 0.89
2
Relative sensitivity in molecular range (1 · 10
PPT
1 10
-1
mbar)
Nitrogen
Air
Hydrogen
Helium
Argon
Carbon dioxid
100 1000