Siemens SITRANS LR250 Operating Instructions Manual page 114

Parameter reference
Low Calibration Pt. (2.3.7.1.)
Distance from sensor reference point to Low Calibration Point (corresponding to Low Level
Point). Units are defined in Unit (2.3.1.).
①
②
③
④
⑤
Sensor reference point is the point from which level measurement is referenced. See
a)
Threaded Horn Antenna with extension (Page 187), Flanged Horn with extension (Page 192),
and Flanged encapsulated antenna (3"/DN80/80A sizes and larger). (Page 198)
Values
Related parameters
High Calibration Pt. (2.3.7.2.)
Distance from sensor reference point
Point). Units are defined in Unit (2.3.1.).
Values
Related parameters
When setting the High Calibration Point value, note that echoes are ignored within Near Range
(2.5.1.).
The value produced by the echo processing which represents the distance from sensor
1)
reference point to the target. [see Threaded Horn Antenna with extension, (Page 190) Flanged
Horn with extension (Page 194), and Flanged encapsulated antenna (3"/DN80/80A sizes and
larger) (Page 198)].
112
High level point (default: 100%)
Low level point (default: 0%)
Sensor value
High calibration point
Level
Range: 0 to 20 m. Default 20.00 m
Unit (2.3.1.), Far Range (2.5.2.)
Range: 0 to 20 m. Default 0.00 m
Unit (2.3.1.), Near Range (2.5.1.)
⑥
Level offset (if used)
⑦
Low calibration point
⑧
Sensor reference point
⑨
Far range
to High Calibration Point (corresponding to High Level
1)
Operating Instructions, 08/2014, A5E32221386-AC
a)
SITRANS LR250 (PROFIBUS PA)