9 Measurement
9.1 Parameter input FLUXUS G809
2020-06-25, UMFLUXUS_G809V2-2EN
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Fluid density
The density is used to calculate the mass flow.
If the mass flow is not measured, an input is unnecessary. The default value can be used.
• Enter the operating density of the fluid.
• Press ENTER.
This display will only be indicated if Other Medium is selected.
Gas compressibility coefficient
The compressibility coefficient of the gas is essential for the calculation of the standard volumetric flow rate. Make sure
that the value is selected according to the operating pressure, the operating temperature and the composition of the gas.
• Enter the compressibility coefficient of the gas.
• Press ENTER.
This display will only be indicated if Other Medium is selected.
Fluid temperature
At the beginning of the measurement, the fluid temperature is used for the interpolation of the sound speed and therefore
for the calculation of the recommended transducer distance.
During the measurement, the fluid temperature is used for the interpolation of the density and viscosity of the fluid.
The value entered here is used for the calculation if the fluid temperature is not measured.
• Enter the fluid temperature. The value has to be within the operating temperature of the transducers.
• Press ENTER.
Fluid pressure
The fluid pressure is used for the interpolation of the sound speed and the gas compressibility coefficient.
• Enter the fluid pressure.
• Press ENTER.
This display will only be indicated if Special Funct.\SYSTEM settings\Measuring\Gas-Measuring is activated
or if Gas-Measuring is deactivated and menu item Special Funct.\SYSTEM settings\Dialogs/Menus\Fluid
pressure is activated.
9.1.3 Other parameters
Transducer parameter
If transducers are identified at a measuring channel, the input of parameters is finished. Press ENTER. The main menu
will be displayed.
If no or special transducers are connected, the transducer parameters have to be entered.
• Select Standard to use the standard transducer parameters stored in the transmitter.
• Select Special Version to enter the transducer parameters. The transducer parameters have to be provided by
FLEXIM.
• Press ENTER.
Parameter\Medium\Other Medium\Density
Parameter\Medium\Other Medium\Gas compr.factor
Parameter\Medium Temperat.
Parameter\Fluid pressure
Parameter\Transducer Type
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