9 Measurement
FLUXUS G809
9.1 Parameter input
91
UMFLUXUS_G809V2-2EN, 2020-06-25
9.1.2
Input of fluid parameters
Fluid
• Select the fluid from the scroll list.
• Press ENTER.
It is possible to specify which fluids are to be displayed in the scroll list, see section 18.4.
If the fluid is not in the scroll list, select
Other Medium
.
If a fluid is selected from the scroll list, the menu item for the input of the fluid temperature will directly be displayed.
If
Other Medium
is selected, the following fluid parameters have to be entered first:
• average sound speed of the fluid
• range around the average sound speed of the fluid
• kinematic viscosity
• density
• gas compressibility coefficient
Sound speed of the fluid
The sound speed of the fluid is used for the calculation of the transducer distance. The exact value of the sound speed is
not always known. Therefore, a range of possible values for the sound speed has to be entered.
• Enter the average sound speed of the fluid.
• Press ENTER.
This display will only be indicated if
Other Medium
is selected.
Sound speed range of the fluid
• Select
auto
if the area around the average sound speed is to be calculated by the transmitter.
• Select
user
if the range around the average sound speed has to be entered.
• Press ENTER.
This display will only be indicated if
Other Medium
is selected.
• Enter the range around the average sound speed of the fluid.
• Press ENTER.
This display will only be indicated if
user
is selected.
Kinematic viscosity of the fluid
The kinematic viscosity influences the flow profile of the fluid. The value is considered in the profile correction.
• Enter the kinematic viscosity of the fluid.
• Press ENTER.
This display will only be indicated if
Other Medium
is selected.
Parameter\Medium
Parameter\Medium\Other Medium\c-Medium
Parameter\Medium\Other Medium\c-Medium range
Parameter\Medium\Other Medium\c-Medium range\c-Medium
Parameter\Medium\Other Medium\Kinem.Viscosity
