9 Measurement
9.4 Display of measured values FLUXUS WD
2018-07-16, UMFLUXUS_WDV1-3EN
90
Transducer distance
By pressing key during the measurement, it is possible to scroll to the display of the transducer distance.
The recommended transducer distance (here: -41.0 mm) is displayed in brackets. The measured transducer distance
(here: -35.0 mm) is displayed afterwards.
The recommended transducer distance might change during the measurement (e.g., due to temperature fluctuations).
A deviation from the optimum transducer distance (here: 6 mm) will be compensated internally.
Tab. 9.6: Description of the status line
value explanation
S signal amplitude
0
…
9
< 5 %
…
90 %
values 3 are sufficient for the measurement
Q signal quality
0
…
9
< 5 %
…
90 %
c sound speed
comparison of the measured and the expected sound speed of the fluid
The expected sound speed is calculated from the fluid parameters.
OK, is equal to the expected value
> 20 % of the expected value
< 20 % of the expected value
? unknown, cannot be measured
R flow profile
information about the flow profile based on the Reynolds number
T fully turbulent flow profile
L fully laminar flow profile
flow within the transition range between laminar and turbulent flow
? unknown, cannot be calculated
F flow velocity
comparison of the measured flow velocity with the flow limits of the system
OK, the flow velocity is not within the critical range
the flow velocity is higher than the current limit
the flow velocity is lower than the current cut-off flow
0 the flow velocity is within the limit range of the measuring method
? unknown, cannot be measured
Fig. 9.4: Display of the transducer distance
1 – transducer distance
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