User's Manual
Table Of Contents
- Table of Contents
- SITRANS LR 460
- Specifications
- Installation
- Wiring
- 4-20 mA Start Up
- Local Operation
- LCD menu structure
- HART Communications
- Remote operation via PROFIBUS PA
- PROFIBUS PA Profile Structure
- Appendix A: Parameter Descriptions
- 1. Identification
- 2. Input
- 3. Output
- 5. Maintenance settings
- 6. Condensed Status Setup
- 6.1. Condensed Status Mode
- 6.1.1. Loss of Echo S0 (Status; Diagnosis)
- 6.1.2. Cable Fault S1 (Status; Diagnosis)
- 6.1.3. No Tech Power S2 (Status; Diagnosis)
- 6.1.4. Device Lifetime Maintenance Required Limit S3 (Status; Diagnosis)
- 6.1.5. Device Lifetime Maintenance Demanded Limit S4 (Status; Diagnosis)
- 6.1.8. Sensor Lifetime Maintenance Demanded Limit S7 (Status; Diagnosis)
- 6.1.9. Device Service Maintenance Required Limit S8 (Status; Diagnosis)
- 6.1.10. Device Service Maintenance Demanded Limit S9 (Status; Diagnosis)
- 6.1.11. LTB Scale S10 (Status; Diagnosis)
- 6.1.12. Internal Temp Sensor S11 (Status; Diagnosis)
- 6.1.13. Internal Temp High S12 (Status; Diagnosis)
- 6.1.16. AIFB2 PV Range S15 (Status; Diagnosis)
- 6.1.19. Calibration Schedule Maintenance Demanded Limit S18 (Status; Diagnosis)
- 6.1.30. Memory EEPROM S29 (Status; Diagnosis)
- 6.1.31. Memory EEPROM Flags S30 (Status; Diagnosis)
- 6.1.32. Memory Flash S31 (Status; Diagnosis)
- 6.1.33. Ident Violation S32 (Status; Diagnosis)
- 6.1.34. Internal Temperature Calibration S33 (Status; Diagnosis)
- 6.1. Condensed Status Mode
- Appendix B: Technical Reference
- Appendix C: Troubleshooting
- Appendix D: Maintenance
- Appendix E: Software Revision History
- Glossary
- Index
7ML19985JM01 SITRANS LR 460 – INSTRUCTION MANUAL Page 53
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Profile structure
Description of the blocks
Transducer block function groups
The figure below shows the signal flow of measured values from the sensor through the
Transducer block into the output value (Primary Value/ Level or Volume; Secondary Value
1 / Level; Secondary Value 2 /Distance 1; or Secondary Value 3 / Distance 2). The Level TB
implements all of the basic parameters (see parameter diagram on page 54), including
level to volume calculation, if that option has been selected.
How the LTB works:
1. The sensor technology block selects the proper echo. For an explanation of sensor
technology, please refer to
Appendix B: Technical Reference
, page 82 onwards.
The sensor value (in sensor units) is checked to see if it is within its measuring limits.
If the limit is exceeded, this results in a Bad status and the error message Failure in
measurement. The sensor value is stored in Sensor Value.
The analog signal from the sensor is transformed into a digital signal.
A Sensor Offset (default 0) provides compensation if necessary for changes in the
sensor.
Level Transducer Block
Sensor Value
Sensor
Sensor
technology
Level
calibration
Linearization
Level
Primary Value
[Level/Volume]
(level/volume units)
(Analog
Input)
AIFB1
Secondary Value 1
[Level]
(Level Units)
Secondary Value 2
[Distance 1]
(Sensor Units)
Sensor
Offset
Level
Offset
High
Calibration
Point
High Level
Point
Low
Calibration
Point
Low Level
Point
Calibration
Type
Linearization
Type
Secondary Value 2
[Distance 2]
(Level Units)
Sensor
Level unit
conversion
PV
SV1
SV2
SV3
AIFB2
(Analog
Input)