Operating Instructions

Table Of Contents
Options m, cm, mm, ft, in.
Default: m
Operation
Operation Description
NO SERVICE Measurement and associated loop current are not updated, and the device
defaults to Fail-safe mode
a)
.
LEVEL * Distance to material surface referenced from Low Calibration Point
SPACE Distance to material surface referenced from High Calibration Point
DISTANCE Distance to material surface referenced from Sensor reference point
a)
See Material Level (2.5.1.) for more detail.
1
3
4
5
6
2
Space High Calibration Point (process full level)
Level Sensor reference point
a)
Distance Low Calibration Point (process empty level)
a)
The point from which High and Low Calibration points are referenced: see Dimension
drawings.
Low Calibration Point
Distance from Sensor Reference to Low Calibration Point: usually process empty level. (See
Operation for an illustration.)
Values Range: 0.00 to 20.00 m
Commissioning
6.2 Operating via the handheld programmer
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG 55