Operating Manual
Universal Flow Computer UR06
Bopp & Reuther
A-EN-08728-URRev.B
Subject to changes
Page 43 of 55
Messtechnik GmbH
density areas overlap with other media. With the settings B.1 to B.4 calculation is done with linear
equation (PTB-A5, Method 1), in other settings according to the procedures described in the relevant
standards.
Selection:
Crud Oil
610,5 … 1075 kg/m³
Group XG
500 … 650 kg/m³
Fuel (Gas)
600,0 … 770,4 kg/m³
XG1
500 … 600 kg/m³
Naphtha
770,5 … 787,5 kg/m³
XG2
600 … 620 kg/m³
Jet
787,6 … 838,5 kg/m³
XG3
620 … 640 kg/m³
Heating Oil
838,6 … 1200 kg/m³
XG4
640 … 650 kg/m³
Lubricant
750,0 … 1164 kg/m³
Group XB
950 … 1200 kg/m³
Group B
600,0 … 1200 kg/m³
XB1
950 … 1000 kg/m³
B.1 Benzin
600,0 … 770,4 kg/m³
XB2
1000 … 1100 kg/m³
B.1 Ethanol
600,0 … 770,4 kg/m³
XB3
1100 … 1200 kg/m³
B.3
787,6 … 838,5 kg/m³
Asphalt A
>= 966 kg/m³
B.4
838,6 … 1200 kg/m³
Asphalt B
850 … 965 kg/m³
K0E
Method X
Method Y
For assignment of parameters see special fluid.
Parameter
K0E
Method X
Method Y
Density SO1
K0E
P1
alpha0
Density SO2
P2
K
Density SO3
P3
Density SO4
P4
17.16.2 Density 15°C
Input of the density at 15°C. An error is displayed if the entered density does not match the oil group.
Range:
100 ... 2,000.0 kg/m3
17.16.3 Compressibility mode
Mode for calculating the compressibility.
The compressibility for hydro carbonates is calculated according to MPMS 11.2.1M or 11.2.2M (the
selection is made automatically according to the density at 15 °C) or can be specified as a constant.
Selection: Constant, MPMS 11.2.xM
17.16.4 vapor pressure mode
Selection of the vapor pressure calculation mode.
Selection: without, Constant, Antoine
17.16.5 vapor pressure
Vapor pressure (pressure equilibrium) for calculating the compressibility.
Range:
0.0 bar ... 10.0 bar
17.16.6 Antoine A, B, C
Parameter of the Antoine equation to calculate the vapor pressure. Proper values can be taken from
literature. Parameter Antoine A without unit, Antoine B and C in °C, result in bar abs.
Pe [bar abs] = exp(A-(B/(T+C))
Range:
depend on parameter
17.17
Differential pressure
The differential pressure measurement can be carried out with one (Index A) or with two (Index B)
transmitters. Switching from the first to the second transmitter occurs when the current of the first
