7 Parameter of the gas
Manual ERZ 2000-NG · EN07 · 2019, May 13th
291
7.4.9
DG Correction of velocity of sound
Figure 215: Menu DG Correction of velocity of sound
The ERZ2000-NG offers a correction option for direct density meters when the veloci-
ty of sound in the gas is known. For this purpose, the actual velocity of sound (also
abbreviated her as c
n
; c = velocity of sound under n = base conditions) must be en-
tered in coordinate
DG08 cn calib.gas
. It is compared with the correct velocity of
sound in
DG12 VOS for corr.
. With the formula for an ideal gas
ܿ ൌ ඨߢ
ߩ
Where
ܿ
-
Velocity of sound
ߢ
-
Adiabatic exponent
-
Presure
ߩ
-
Density
a correction value can be determined for the density (
DG02 Corr.factor Rho
). With
the path length along which the velocity of sound is determined, the change from
base to measurement conditions can be factored in.
Summary of Contents for ERZ2000-NG
Page 10: ......
Page 68: ...2 Introduction Manual ERZ 2000 NG EN07 2019 May 13th 58 Figure 44 Menu LA Overview...
Page 69: ...2 Introduction Manual ERZ 2000 NG EN07 2019 May 13th 59 Figure 45 Menu LB Totalizer BM1...
Page 77: ...2 Introduction Manual ERZ 2000 NG EN07 2019 May 13th 67 Figure 51 Overview System sub menu...
Page 241: ...6 Flow meters Manual ERZ 2000 NG EN07 2019 May 13th 231 Figure 167 Interface module C34...
Page 340: ...8 Overview Coordinates Manual ERZ 2000 NG EN07 2019 May 13th 330 8 5 6 TSV export...
Page 453: ...Certificates Manual ERZ 2000 NG EN07 2019 May 13th 443...