Flexim FLUXUS F501, Руководство по эксплуатации, Страница: 106 / 146

16 Advanced functions
16.5 Profile correction
FLUXUS F501
2020-06-30, UMFLUXUS_F501V1-3EN
106
16.5 Profile correction
The following settings can be made for the calculation of the fluid mechanics calibration factor k
Re
:
• off : profile correction 1.0
• on : profile correction 2.0 at ideal inflow conditions (default)
• With disturbance : profile correction 2.0 at non ideal inflow conditions
The following steps are necessary to set the profile correction:
• Selection of the profile correction setting for all measuring channels in the program branch
Special Funct.
• Input of the disturbance distance in the program branch Parameter if
With disturbance has been selected
If With disturbance has been selected, the transducers have to be mounted in reflection arrangement, X arrangement
or displaced X arrangement to compensate transverse flow effects. When mounting in X arrangement, it is essential to set
the same parameters for both measuring channels and to activate for them a calculation channel with average generation.
Selection of the setting
• Select the menu item Special Funct. in the program branch Measuring .
• Press ENTER until the menu item ProfileCorr 2.0 is displayed.
• Select a list item (default: on ).
• Press ENTER.
Input of the disturbance distance
If With disturbance is selected in the menu item Special Funct.\SYSTEM
settings\Measuring\ProfileCorr 2.0 , the disturbance distance has to be entered in the program branch
Parameter .
• Enter the disturbance distance.
• Press ENTER.
Measurement
When starting the measurement, it is checked whether the measurement arrangement is appropriate.
16.6 Uncorrected flow velocity
For special applications, the uncorrected flow velocity might be of interest.
The profile correction for the flow velocity is activated in the menu item
Special Funct.\SYSTEM settings\Mea -
suring\Flow Velocity .
• Select normal to display and output the flow velocity with profile correction.
• Select
uncorr.
to display and output the flow velocity without profile correction.
• Press ENTER.
If
uncorr. is selected, each time the program branch Measuring is selected it will be requested whether the profile correction
is to be used or not.
If no is selected, the profile correction will be switched off. All physical quantities will be calculated with the uncorrected
flow velocity.
During the measurement, the designation of the physical quantity is displayed in capital letters to indicate that the value is
uncorrected.
Special Funct.\...\Measuring\ProfileCorr 2.0
Special Funct.\SYSTEM settings\Measuring\Flow Velocity
Disturb.distance
2.3 m
PROFILE CORR.
>NO< yes