Siemens Sitrans Probe LU Instruction Manual page 44

Oxley Creek WWTP Water Reclamation
(Probe LU Manual) Vendor Manual
When you set Auto False-Echo Suppression to
profile at that moment
for the distance set in Auto False Echo Suppression Distance. The learned profile
(learned TVT curve) follows the echo profile, so that no large false echoes rise above the
learned TVT curve. From the end of the Auto False-Echo Suppression Distance, the
default TVT curve is used. The material level echo rises above this, and is selected as the
true echo.
1.
Turn on Auto False-Echo Suppression when the material level is substantially lower than process
full level (ideally when the tank is empty or almost empty).
Page 38 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL
1
. Then it uses the learned profile instead of the default TVT curve,
Display before Auto False Echo Suppression
default TVT
curve
false
echo
Display after Auto False Echo Suppression
TVT curve
(learned)
false
echo
, the instrument learns the echo
true
TVT
echo
Hover Level
Distance (meters)
material
level
Distance (meters)
Doc Id: VM11
Active Date: 15/12/2006
7ML19985JB02