ABB CoriolisMaster FCM2000, Operating Instructions Manual, Page: 92 / 128

Parameterization
92 CoriolisMaster FCM2000 D184B111U02
Calculation of accuracy
The accuracy of the concentration computation depends foremost on the quality of the matrix
data. As density and temperature measurement is the input for the calculation both accuracies
define the accuracy of the concentration measurement.
Example:
Density 0 % alcohol in water (20 °C [68 °F]) 998.23 g/l
Density 100 % alcohol in water (20 °C [68 °F]) 789.30 g/l
100 % = 208.93 g/l
0.48 % = 1 g/l
2.40 % = 5 g/l
The chosen accuracy class of the density measurement effects the accuracy of the concen-
tration measurement directly.
Example: Input Matrix
10 °C (50 °F) 20 °C (68 °F) 30 °C (86 °F)
0 % 0 °BRIX 0.999 kg / l 0.982 kg / l 0.979 kg / l
10 % 10 °BRIX 1.010 kg / l 0.999 kg / l 0.991 kg / l
40 % 30 °BRIX 1.016 kg / l 1.009 kg / l 0.999 kg / l
80 % 60 °BRIX 1.101 kg / l 1.018 kg / l 1.011 kg / l
The unit of density and temperature corresponds to the chosen units in submenu units.
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