Flexim FLUXUS F401, Руководство по эксплуатации

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17 SuperUser mode
17.2 Defining flow parameters
FLUXUS F401
2020-06-12, UMFLUXUS_F401V2-1EN
122
17.2.2 Correction of the flow velocity
After the profile bounds have been defined, it is possible to define a correction of the flow
velocity:
v
cor
= m · v + n
where
All quantities derived from the flow velocity will be calculated with the corrected flow ve -
locity. The correction data will be transmitted to the PC or printer during the online or of -
fline transmission.
• Select on to define the correction data, off to work without correction of the flow veloc -
ity and return to the menu item SYSTEM settings .
• If
on
is selected, enter the slope. The input
0.0
deactivates the correction.
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 active after the deactivation of the SuperUser
mode.
v – measured flow velocity
m – slope, range: -2.0...+2.0
n – offset, range: -12.7…+12.7 cm/s
v
cor
– corrected flow velocity
Notice!
It will not be displayed that the correction of the flow velocity is active during the
measurement.
Special Funct.\...\Calibration\...\Calibration
Special Funct.\...\Calibration\...\Calibration\Slope