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17 SuperUser mode
17.3 Defining flow parameters
FLUXUS F808
2020-06-25, UMFLUXUS_F808V2-2EN
142
• If
Special Version
is selected, the transducer parameters have to be entered.
The transducer parameters have to be provided by FLEXIM.
• Press ENTER after each input.
17.3
Defining flow parameters
In the SuperUser mode, it is possible to define some flow parameters (profile bounds, correction of the flow velocity) for
the specific application or measuring point.
• Select
Special Funct.
\
SYSTEM settings\Measuring\Calibration
.
• Press ENTER.
17.3.1
Profile bounds
• Select
user
to define the profile bounds. If
factory
is selected, the default profile bounds will be used and the menu
item
Calibration
will be displayed.
• Press ENTER.
• Enter the max. Reynolds number at which the flow is laminar. The entered number will be rounded to hundreds.
• Enter zero to use the default value of 1000.
• Press ENTER.
• Enter the min. Reynolds number at which the flow is turbulent. The entered number will be rounded to hundreds.
• Enter zero to use the default value of 3000.
• Press ENTER.
A request is displayed if an additional correction of the flow velocity is to be defined.
• Select
on
to define the correction data,
off
to work without correction of the flow velocity and return to the menu item
SYSTEM settings
.
Parameter\...\Transducer Type\Special Version\Transd. Data 1
Special Funct.\SYSTEM settings\Measuring\Calibration
Special Funct.\...\Calibration\...\Profile bounds
Special Funct.\...\Calibration\...\Laminar flow
Special Funct.\...\Calibration\...\Turbulent flow
Special Funct.\...\Calibration\...\Calibration
Example
profile bound for laminar flow: 1500
profile bound for turbulent flow: 2500
At Reynolds numbers < 1500, the flow is regarded as laminar for the calculation of the physical quantity. At Reynolds
numbers > 2500, the flow is regarded as turbulent. The range 1500...2500 is the transition range between laminar and
turbulent flow.
Notice!
The defined profile bounds are still activated after the deactivation of the SuperUser mode.