User's Manual

Sound velocity measurement
69
Step Description
10 Tap the OK button.
Result: The correlation starts. The sound velocity in the pipe is calculated and
displayed below the correlation curve.
The result is considered reliable if the following criteria are met:
x The radio signal from both transmitters is good or excellent.
x The lag value (top left of the diagram) is green and seems plausible.
x The displayed sound velocity seems stable and plausible
If no reliable result is shown, you can use the Cancel button to terminate the
measurement and leave the menu.
11 Tap the Accept and edit pipe button.
Result: The Pipe data menu opens.
There, for the Material and Diameter input fields, the “Manual” option is
automatically selected. The recently calculated sound velocity is accepted and
shown in the corresponding field.
Once the length of the pipe section is changed in this menu, the sound
velocity measurement must be performed again.
Use the Back button to return to the Start menu.
Use the button to start a new correlation between the Power transmitters. The
determined sound velocity will be used for the calculation. This applies until the pipe
parameters are changed in the Pipe data menu, or the entire correlation data are reset
in the Settings menu.