Siemens SITRANS Probe LU Operating Instructions Manual page 33

8. Enable False-Echo Suppression (P837: Auto False-Echo Suppression
Use this feature to ignore false echoes before the material echo. Use P838 to set the Auto
TVT distance first.
Parameter
P837
Setup Auto False-Echo Suppression:
a. Perform this function when the vessel is empty or nearly empty.
b. Determine actual distance from transducer face to material level.
c. Press PROGRAM
d. Select P838 and key in [distance to material level minus 0.5 m].
e. Press ENTER
f. Select P837.
g. Press 2 and then press ENTER
Learned TVT) after a few seconds.
Display after Auto False Echo Suppression
false
echo
9. Press PROGRAM
1.
False echoes can be caused by obstructions within the beam path. For more detail, see TVT
adjustment parameters, page 60, and TVT curves, page 89.
A5E32337695 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS
Values
0 * Off
1 Use "learned" TVT
2 "Learn"
then DISPLAY
,
.
TVT curve
material
(learned)
level
Distance (meters)
to return to RUN mode.
Description
.
. P 837 will automatically revert to 1 (use
1
)
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