RMG TRZ 04, Руководство по эксплуатации

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Installation and Commissioning
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Manual TRZ 04 · EN04 · February, 1st 2017
23
1.13 Using gas meters with different types of gases
Gas type Symbol Density at
0°C
1.013 bar
Meter
case Comments
Acid gas Special Special measuring element
Air Ar 1.29 Standard
Ammonia NH
3
0.77 Standard O-rings/lubrication
Argon AR 1.78 Standard
Biogas Special Special measuring element
Butane C4H10 2.70 Standard
Carbon dioxide CO
2
1.98 Standard Exception: food industry
Carbon monoxide CO 1.25 Standard
Ethan C
2
H
6
1.36 Standard
Ethylene (gaseous)
C
2
H
4
1.26 Standard Special design
Freon (gaseous) CCI
2
F
2
5.66 Standard O-rings/lubrication
Helium HE 0.18 Standard Reduced measuring range
Hydrogen H
2
0.09 Special Reduced measuring range
Hydrogen sulphide (0.2 %) H
2
S 1.54 Standard Special measuring element
Methane CH
4
0.72 Standard
Natural gas 0.8 Standard
Nitrogen N
2
1.25 Standard
Oxygen (100%) O
2
1.43 Standard Special design
Pentane C
5
H
12
3.46 Standard
Propane C
3
H
8
2.02 Standard
Propylene (gaseous) C
3
H
6
1.92 Standard Special measuring element
Sulphur dioxide SO
2
2.93 Special Special design
Town gas
Introduction