Siemens LR 460 사용자 설명서
7ML19985JM01
SITRANS LR 460 (PROFIBUS PA) – INSTRUCTION MANUAL
Page J-101
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2.
Level Calibration is a linear transfer function that converts a sensor value to a level
value.
3.
The Level Transducer Block (LTB) provides three possible outputs
• Primary Value (PV)/Level
• Secondary Value 1 (SV1)/Level (plus level offset, if any)
• Secondary Value 2 (SV2)/Distance (in Sensor units)
• Secondary Value 1 (SV1)/Level (plus level offset, if any)
• Secondary Value 2 (SV2)/Distance (in Sensor units)
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
Low Calibration Point
Sensor Value
High Calibration Point
Level
High Level Point
Low Level Point
Calibration
Level Value
SITRAN
S LR 40
0
Sensor Reference Point
(flange face)
Level
(PV/SV1)
Low Calibration Point
High Calibration Point
SV2 (distance)
Low Level Point
High Level Point
Level
Offset