Universal Flow Computer UR06
Operating Manual
Page 42 of 55
Subject to changes
A-EN-08728-URRev.B
Bopp & Reuther
Messtechnik GmbH
dyn. viscosity SO3 [m²/(NsK²)]
T [°C] = temperature
Range:
-1e37 ... +1e37
17.13.3 Parameter special fluid enthalpy
Polynomial coefficients for calculating the enthalpy of special fluid SO1- SO2.
Enthalpy [kWh/kg] = SO1 * T + SO2 * T²
Enthalpy SO1 [kWh/(kgK)] = specific thermal capacity
Enthalpy SO2 [kWh/(kgK²)] = slope of the specific thermal capacity
T [°C] = temperature
Range:
-1e37 ... +1e37
17.14
Special fluid concentration
17.14.1 Mode
Control of the concentration determination. In default is expected with a constant concentration. In
mode current the concentration is provided by an external measuring device. In mode density the
concentration is calculated as a function of density.
Selection: without, default, 0/4..20mA, Density
17.14.2 Input
Electrical assignment of the current input to the measured value.
Range:
I1, I2, I3, I4
17.14.3 Default
Default value for the concentration.
Range:
0 ... 100 %
17.14.4 End value
Value of the concentration at 20 mA.
Range:
0 ... 100 %
17.14.5 Start value
Value of the concentration at 0/4 mA.
Range:
0 ... 100 %
17.14.6 Parameter
Additional polynomial coefficients to respect the concentration.
Density SO3, Density SO4, Enthalpy SO3, Enthalpy SO4, dyn. Viscosity SO4, dyn. Viscosity SO5.
Range:
-1e37 ... +1e37
17.15
GERG
17.15.1 GERG parameter
The compressibility or status number of natural gas can be calculated according to GERG 88.
Calorific value
Ho [kWh/m³]
Range: 5 ... 15
Carbon dioxide
CO2 [mol %]
Range: 0 ... 30
Hydrogen
H2 [mol %]
Range: 0 ... 10
17.16
Mineral oils
17.16.1 Oil group
Oil group selection according to DIN 51575 (PTB-A5, OIML 63, API-ASTM-IP, ASTM D4311). The
fluid is automatically selected in the product group B, XG and XB setting using the measured or
specified density. Depending on the density, the respective fluid is used for internal calculation. Crude
oil and lubricant are not listed under product group B and cannot be automatically detected, as the