User's Manual

Parameter reference
SITRANS LR250 (HART)
138 Operating Instructions, 01/2014, A5E32220602-AB
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. Go to
Auto False Echo Suppression Range (2.8.7.2.)
and enter the value calculated in
step 2.
4. Go to
Auto False Echo Suppression (2.8.7.1.)
and press RIGHT arrow to open Edit Mode.
5. Select
Learn
. The device will automatically revert to
On
(Use Learned TVT) after a few
seconds.
After Auto False Echo Suppression
①
false echo
④
material level
②
learned TVT
⑤
def
ault TVT
③
Auto False Echo Suppression
Range
⑥
echo marker
To set Auto False Echo Suppression via SIMATIC PDM:
Open the menu
Device – Echo Profile Utilities
and click on the tab
Auto False Echo
Suppression
. For more detailed instructions see Auto False Echo Suppression via SIMATIC
PDM (Page 76).