9 Measurement
9.5 Execution of special functions
FLUXUS F501
2020-06-30, UMFLUXUS_F501V1-3EN
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9.4.3
Transducer distance
The transducer distance can be displayed during the measurement by scrolling the key
.
The optimum transducer distance (here: 51.2 mm) will be displayed in parentheses in the upper line, 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.
9.5
Execution of special functions
Commands that can be executed during a measurement are displayed in the upper line.
A command begins with →. If programmed, a program code has to be entered first.
• Press key
until the command is displayed.
• Press ENTER.
The commands available are the following:
9.6
Determination of the flow direction
The flow direction in the pipe can be detected with the help of the displayed volumetric flow rate sign in conjunction with
the arrow on the transducers:
• The fluid flows in the direction of the arrow if the displayed volumetric flow rate is positive (e.g., 54.5 m³/h).
• The fluid flows against the arrow direction if the displayed volumetric flow rate is negative (e.g., -54.5 m³/h).
9.7
Stop of the measurement
The measurement is interrupted by pressing key BRK if it is not protected by a program code, see section 18.5.
Fig. 9.3:
Display of the transducer distance
Notice!
Never change the transducer distance during the measurement.
Tab. 9.6:
Executable commands during the measurement
command
explanation
→Adjust transd.
toggling to transducer positioning
If a program code is active, the measurement will be continued 8 s after the last keyboard entry.
→Clear totalizer
reset of flow totalizers to zero
→Break measure
stop of the measurement and return to the main menu
Notice!
Be careful not to stop a current measurement by inadvertently pressing key BRK.
L=(51.2) 50.8 mm
54.5
m3/h