User's Manual

Table Of Contents
A5E32337683 SITRANS LR260 (HART) – OPERATING INSTRUCTIONS Page 45
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SIMATIC PDM
TVT Shaper
This feature allows you to manually adjust the TVT curve to avoid false echoes caused by
obstructions. (For an explanation, see
Auto False Echo Suppression
on page 98.)
Open the menu Device – TVT Shaper
Press Measure to refresh the echo profile and load the current TVT curve from the
device.
Change the position of the cursor on the TVT curve using the Point+ and Point
buttons: raise and lower the curve using Offset+ and Offset–.
Alternatively, enter values for Point and Offset directly into the dialog boxes.
Press Transfer to Device.
Note: Double click on each axis and record the Xscale and Data Scale values, so that
you can restore the default view by resetting to these values.
TVT curve
cursor
echo profile