Siemens 7ML5431 - Page 115

Parameter reference
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
115
Sensor (2.2.)
Units (2.2.1.)
PV (Primary Value) and SV (Secondary Sensor measurement units). Used in setting
High/Low Calibration Point, and displayed on LCD and in PDM.
Values
m, cm, mm, ft, in
Default: m
Sensor Mode (2.2.2.)
①
Sensor value
⑤
Sensor reference point [see Dimension draw-
ings] (Page 183)
②
Space
⑥
Low Calibration Point
③
Distance
⑦
Far range
④
High Calibration Point
⑧
Level
Mode
Description
Reference point
NO SERVICE Measurement and associated loop current are
not updated, and the device defaults to Fail-
safe mode
a)
.
n/a
LEVEL * Distance to material surface Low Calibration Point
(process empty level)
SPACE Distance to material surface High Calibration Point
(process full level)
DISTANCE
Distance to material surface
Sensor reference point
a)
See Material Level (2.5.1.) for more detail.