Setup with the integrated HMI
7.8.2 Peak values
2.
Make sure that the material level is below all known installations when using
the
"
Auto false echo suppression wizard
"
to determine the TVT. Ideally the vessel
should be empty or almost empty.
3.
Note the distance to the material level when determining the echo profile and
set the value in parameter "
Effective range of automatic false echo suppression
"
to a smaller distance to avoid suppression of the material echo.
4.
If an agitator is used, it should be in operation.
Note
The effective range of the automatic false echo suppression sets the end point of the
determined TVT distance.
Determine the effective range of the automatic false echo suppression by measuring
the actual distance from the transmitter reference point to the material surface. Use
a cable or measuring tape.
Setting
Selection
Selection
Description
HOVER LEVEL
dB value of the basic noise
AFES ON
Activates the automatic auto
false echo suppression
AFES OFF
Deactivates the automatic
auto false echo suppression
SIGNAL
TVT CONFIG
AFES RANGE
Effective range of the
automatic false echo
suppression
7.8.2
Peak values
Min. measured distance
MIN DISTANCE:
Displays the value of the minimum measured distance. The value may reset if the
unit is changed.
SITRANS LR150
Operating Instructions, 08/2020,
A5E50352155
57