Lower Level Point (2.3.3); Upper Level Point (2.3.4); Sensor Offset (2.3.5); Low-Level Cutoff (2.3.6) - Siemens SITRANS LR500 Series Operating Instructions Manual

9.2.3.3

Lower level point (2.3.3)

Sets level value when material is at lower calibration point.
Setting
Default
9.2.3.4

Upper level point (2.3.4)

Sets level value when material is at upper calibration point.
Setting
Default
9.2.3.5

Sensor offset (2.3.5)

Sets offset to compensate for changes in sensor reference point.
Changes to sensor reference point may result from adding a thicker gasket or reducing the
standoff/nozzle height.
Setting
Default
If amount of parameter "Sensor offset" is known, enter the constant that can be added to or
subtracted from sensor value
The value produced by the echo processing which represents the distance from sensor
1)
reference point to the target
9.2.3.6

Low-level cutoff (2.3.6)

Sets lower limit on measured value (before any offset applied).
For example, set value to zero to prevent a negative level measurement.
Setting
Default
Note
Default value disables parameter
By using the default value of -999, or a lower value, the parameter "Low-level cutoff" is disabled.
9.2.3.7

Propagation factor (2.3.7)

Sets value that represents reduction in propagation velocity as a result of the wave travelling
through a pipe.
SITRANS LR500 series with mA/HART
Operating Instructions, 03/2024, A5E51099898-AA
-99999 to 99999 m
0.0 m
-99999 to 99999 m
30 m
-99.999 to 99.999 m
0
to compensate if the sensor reference point has shifted.
1)
-999 to 0.0
0.0
Parameter assignment
9.2 Setup (2)
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