9 Measurement
FLUXUS F502TE 9.4 Display of measured values
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UMFLUXUS_F502TEV1-5EN, 2020-05-29
9.4.3 Transducer distance
The transducer distance can be displayed during the measurement by scrolling with .
The optimum transducer distance (here: 51.2 mm) will be displayed in parentheses, followed by the entered transducer
distance (here: 50.8 mm).
The optimum transducer distance might change during the measurement (e.g., due to temperature fluctuations).
A deviation from the optimum transducer distance (here: 0.4 mm) will be compensated internally.
Tab. 9.5: Description of the status line
value explanation
S signal amplitude
0
…
9
< 5 %
…
≥ 90 %
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
↕ 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. 9.3: Display of the transducer distance
Notice!
Never change the transducer distance during the measurement.
L=(51.2) 50.8 mm
54.5 m3/h
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