Siemens SITRANS LR250 Operating Instructions Manual page 101

Auto False Echo Suppression
1. Determine Auto False Echo Suppression Range. Measure the actual distance from the
sensor reference point to the material surface using a rope or tape measure.
2. Subtract 0.5 m (20") from this distance, and use the resulting value.
3. Open the menu Configure/Setup > LTB > Setup > Signal Processing > TVT and set Auto
False Echo Suppression Range.
4. From the same menu, set Auto False Echo Suppression to learn. The device will
automatically revert to On (Use Learned TVT) after a few seconds.
TVT Shaper
[see TVT Shaper (2.5.11.)]
● Breakpoints 1 to 40
● Shaper Mode
1. Open the menu Configure/Setup > LTB > Setup > Signal Processing > TVT and click on the
TVT Setup tab
2. Turn Shaper Mode to On to activate Breakpoints 1 to 40 on the TVT Shaper tab
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 08/2014, A5E32221411-AC
Remote operation
7.1 Operating via AMS Device Manager
101