Parameter Structure; Sensor Value; Sensor Unit; Level, Primary Value - Siemens SITRANS LR 300 Instruction Manual

Parameter Structure

The diagram below shows a level application and the parameters involved.
Traditional Parameters
(individual parameters are named)
P006
Empty
P927
Distance
P922
Space
P921 Level /
P924 Volume
P801 Range Extension

Sensor Value

The value produced by the echo processing, which represents the distance from the
Sensor Reference Point to the target.

Sensor Unit

Units for Sensor Value, calibration points and other sensor-related parameters.

Level, Primary Value

The level as a percentage of Span (P007): (units are %).

Level, Primary Value Unit

Always %.

Sensor Reference Point

The point to which all of the above parameters are referenced, which is the flange face.
1.
Range extension can be set beyond the tank bottom.
7ML19985CL02
Sensor
Reference
Point
100%
0%
1
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