FLUXUS WW 15 SuperUser mode
106 UMFLUXUS_WWV1-1EN, 2018-02-28
15.3.1 Profile bounds
15.3.2 Correction of the flow velocity
After the profile bounds have been defined (see section 15.3.1), it is possible to define a correction of the flow velocity:
v
cor
= m
.
v + n
with
All quantities derived from the flow velocity will be calculated with the corrected flow velocity. The correction data will be
transmitted to the PC or printer during the online or offline transmission.
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 (see section 15.3.2).
Press ENTER.
Enter the max. Reynolds number at which the flow is laminar. The entered number will be
rounded to hundreds. Enter 0 (zero) to use the default value of 1 000.
Press ENTER.
Enter the min. Reynolds number at which the flow is turbulent. The entered number will be
rounded to hundreds. Enter 0 (zero) to use the default value of 3 000.
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 re-
turn to the menu item SYSTEM settings.
For the definition of the correction of the flow velocity, see section 15.3.2.
Example: profile bound for the laminar flow: 1 500
profile bound for the turbulent flow: 2 500
At Reynolds numbers < 1 500, the flow during the measurement is regarded as laminar for the calcula-
tion of the physical quantity. At Reynolds numbers > 2 500, the flow is regarded as turbulent. The
range 1 500...2 500 is the transition range between laminar and turbulent flow.
Attention! The defined profile bounds are still active after the deactivation of the SuperUser mode.
v – measured flow velocity
m – slope, range: -2 000…+2 000
n – offset, range: -12.7…+12.7 cm/s
v
cor
– corrected flow velocity
Note! During the measurement, it will not be displayed that the correction of the flow velocity is active.
Select on to define the correction data, off to work without correction of the flow velocity
and return to the menu item SYSTEM settings.
If on is selected, enter the slope. The input 0.0 deactivates the correction.
Press ENTER.
Enter the offset. Enter 0 (zero) to work without offset.
Press ENTER.
A:Profile bounds
factory >USER<
To Next Page
Loading...
