11 Basic Measurement FLUXUS G60x
UMFLUXUS_G6V4-2EN, 2011-03-29 75
11.2.2 Kinematic Viscosity
The kinematic viscosity affects the flow profile of the medium. The entered value and oth-
er parameters are used for the profile correction.
11.2.3 Density
The density is used to calculate the mass flow rate (product of the volumetric flow rate
and the density).
11.2.4 Gas Compressibility Factor
The gas compressibility factor is necessary for the calculation of the standard volumetric
flow rate (see section 12.1.1). Note that the value is selected correspondingly to the op-
erating pressure, the operating temperature and the composition of the gas.
11.2.5 Medium Temperature
The medium temperature is used for the interpolation of the sound speed and for the cal-
culation of the recommended transducer distance and for the interpolation of the gas
compressibility factor at the beginning of the measurement.
During the measurement, the medium temperature is used for the interpolation of the
density and the viscosity of the medium.
The value entered here will be used for the calculations if the medium temperature is not
measured and fed to an input of the transmitter.
Enter the kinematic viscosity of the medium. Press EN-
TER.
This display will only be indicated if Other Medium has
been selected or no data set for the selected medium is
stored in the transmitter (e.g. natural gas).
Enter the operating density of the medium. Press ENTER.
This display will only be indicated if Other Medium has
been selected or no data set for the selected medium is
stored in the transmitter (e.g. natural gas).
Enter the gas compressibility factor. Press ENTER.
This display will only be indicated if Other Medium has
been selected or no data set for the selected medium is
stored in the transmitter (e.g. natural gas).
Enter the medium temperature. The value must be within
the operating temperature range of the transducers. Press
ENTER.
Kinem.Viscosity
1.00 mm2/s
Gas compr.factor
1.000 factor