User's Manual

Parameter reference
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 01/2014, A5E32221411-AB
135
High Calibration Point (2.3.7.2.)
Distance from sensor reference point
1)
to High Calibration Point (corresponding to High Level
Point). Units are defined in
Unit (2.3.1.).
See
Low Calibration Point (2.3.7.1.)
for an illustration.
Values
Range: 0.00 to 20.00 m. Default 0.00 m
Related parameters
Unit (2.3.1.), Near Range (2.5.1.)
When setting the High Calibration Point value, note that echoes are ignored within
Near Range
(2.5.1.).
1)
The value produced by the echo processing which represents the distance from sensor
reference point to the target. [see Threaded Horn Antenna with extension, (Page 208) Flanged
Horn with extension (Page 212), and Flanged encapsulated antenna (3"/DN80/80A sizes and
larger) (Page 216)].
Sensor Offset (2.3.7.3.)
A constant offset that can be added to or subtracted from the sensor value to compensate for a
shifted sensor reference point. (For example, when adding a thicker gasket or reducing the
standoff/nozzle height.) The units are defined in
Unit (2.3.1.)
.
Values
Range:
-99.999
to
99.999
Default: 0.000 m
Related Parameters
Unit (2.3.1.)
See
How the LTB works
: in manual Foundation Fieldbus for Level Instruments
(7ML19985MP01)
for more details on sensor offset.
Low Level Point (2.3.7.4.)
The level when the material is at Low Calibration Point. The unit is defined in
Level Unit (2.3.2.).
Values
Range: -999999 to 999999
Default: 0%
High Level Point (2.3.7.5.)
The level when the material is at High Calibration Point. The unit is defined in
Level Unit (2.3.2.).
Values
Range: -999999 to +999999
Default: 100%