Siemens SITRANS LR250 Operating Instructions Manual page 67

Units
Sensor measurement units.
Options
Operation
Operation
NO SERVICE
LEVEL
SPACE
DISTANCE
See Material Level (2.3.5.) for more detail.
a)
SITRANS LR250 (FOUNDATION FIELDBUS)
Operating Instructions, 08/2014, A5E32221411-AC
m, cm, mm, ft, in
Default: m
Description
Measurement and associated loop current are not updated, and the device
defaults to Fail-safe mode
* Distance to material surface referenced from Low calibration point
Distance to material surface referenced from High calibration point
Distance to material surface referenced from Sensor reference point
6.2 Operating via the handheld programmer
.
a)
Commissioning
67