User's Manual

7ML19985KB01 SITRANS LR560 (mA/HART) – INSTRUCTION MANUAL Page 129
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D: Technical Reference
Sensor Mode (2.2.2.)
This parameter controls the input. Depending on the reference point used, the
measurement reports either Level, Space, or Distance. By default Sensor Mode is set to
Distance.
You also have the option to put the device out of service, in which case the device
defaults to Fail-safe mode, and the reported level depends on the device type. A standard
device reports the last valid reading, and a NAMUR NE 43-compliant device reports the
user-defined value for Material Level (3.58 mA by default).
Current Output Function (2.6.1.)
Current Output Function (2.6.1.) controls the mA output and applies any relevant scaling.
By default it is set to Distance. Other options are Space and Level.
To view the mA reading in the secondary region of the LCD, press
on the handheld
programmer.
Operation Description Reference point
LEVEL
Measurement from reference point to
material surface
Low Calibration Point (pro-
cess empty level)
SPACE
Measurement from reference point to
to material surface
High Calibration Point (pro-
cess full level)
DISTANCE
Measurement from reference point to
to material surface
Sensor Reference Point
Level
Space
Distance
Distance
Space
Level
20 mA
100%
4 mA
0%
High
Cal.
Pt.
4 mA
0%
20 mA
100%
4 mA
0%
20 mA
100%
Sensor
reference
point
Low
Cal.
Pt