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1 Introduction
1.3.4.2.
Gas
18
Natural gas
City gas
Methane
Ethane
Propane
Butane
Air
Argon
Helium
Carbon dioxide (dry)
Nitrogen
Hydrogen
Ethylene (gaseous)
Biogas
Sour gas
Digester gas / sewage
gas
Sulfur dioxide
The components of the gases must be within the concentration limits according to EN
437:2009 for test gases. Safe operation is guaranteed with these specified gases.
Other gases on request.
Manual TME400-VMF · EN02 · 2018 September 6th
Use of gas meters for different gases
Symbol Tight-
ness at
0°C and
1.013 bar
0.8
CH
0.72
4
C
H
1.36
2
6
C
H
2.02
3
8
C
H
2.70
4
10
1.29
Ar
1.78
He
0.18
CO
1.98
2
N
1.25
2
H
0.09
2
C
H
1.26
2
4
SO
2.93
2
Meter
Comments
housing
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
Standard
up to 100%
Generally, a reduced meas-
uring range
Special
Special version (also for
humid gases):
Special
Teflon coating, special lubri-
Special
cation, special material, etc.
Special
Special
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