Operating Instructions
Table Of Contents
- SITRANS LR250 with mA/HART
- Legal information - Warning notice system
- Table of contents
- 1 Introduction
- 2 Safety information
- 3 Description
- 4 Installing/mounting
- 5 Connecting
- 6 Commissioning
- 7 Remote operation
- 7.1 Operating via SIMATIC PDM
- 7.1.1 Functions in SIMATIC PDM
- 7.1.2 Initial setup
- 7.1.3 Updating the Electronic Device Description (EDD)
- 7.1.4 Quick Start Wizard via SIMATIC PDM
- 7.1.5 Changing parameter settings using SIMATIC PDM
- 7.1.6 Parameters accessed via pull-down menus
- 7.1.6.1 Echo profile utilities
- 7.1.6.2 Echo profile
- 7.1.6.3 View saved echo profiles
- 7.1.6.4 TVT Shaper
- 7.1.6.5 Auto false echo suppression
- 7.1.6.6 Echo setup
- 7.1.6.7 Maintenance
- 7.1.6.8 Select analog output
- 7.1.6.9 Self test
- 7.1.6.10 Loop test
- 7.1.6.11 Configuration flag reset
- 7.1.6.12 Master reset
- 7.1.6.13 Wear
- 7.1.6.14 HART Communication
- 7.1.6.15 Process variables
- 7.1.6.16 Trend
- 7.1.6.17 Device status
- 7.1.6.18 Update
- 7.1.6.19 Security
- 7.2 Operating via AMS Device Manager
- 7.3 Operating via FDT (Field Device Tool)
- 7.1 Operating via SIMATIC PDM
- 8 Parameter reference
- 9 Service and maintenance
- 10 Diagnosing and troubleshooting
- 11 Technical data
- 12 Dimension drawings
- 12.1 Universal polymeric flange
- 12.2 Aluminum horn antenna
- 12.3 Mounting bracket
- 12.4 Aluminum horn with polypropylene lens antenna and polymeric flange
- 12.5 Stainless steel threaded horn antenna
- 12.6 Stainless steel threaded horn antenna with extension
- 12.7 Stainless steel flanged horn antenna
- 12.8 Stainless steel flanged horn antenna with extension
- 12.9 PTFE Flanged encapsulated antenna (2"/DN50/50A sizes only)
- 12.10 PTFE Flanged encapsulated antenna (3"/DN80/80A sizes and larger)
- 12.11 Hygienic encapsulated antenna (2" ISO 2852 sanitary clamp)
- 12.12 Hygienic encapsulated antenna (3" ISO 2852 sanitary clamp)
- 12.13 Hygienic encapsulated antenna (4" ISO 2852 sanitary clamp)
- 12.14 Hygienic encapsulated antenna (DN50 nozzle/slotted nut to DIN 11851)
- 12.15 Hygienic encapsulated antenna (DN80 nozzle/slotted nut to DIN 11851)
- 12.16 Hygienic encapsulated antenna (DN100 nozzle/slotted nut to DIN 11851)
- 12.17 Hygienic encapsulated antenna (DN50 aseptic slotted nut to DIN 11864-1)
- 12.18 Hygienic encapsulated antenna (DN80 aseptic slotted nut to DIN 11864-1)
- 12.19 Hygienic encapsulated antenna (DN100 aseptic slotted nut to DIN 11864-1)
- 12.20 Hygienic encapsulated antenna (DN50 aseptic flange to DIN 11864-2)
- 12.21 Hygienic encapsulated antenna (DN80 aseptic flange to DIN 11864-2)
- 12.22 Hygienic encapsulated antenna (DN100 aseptic flange to DIN 11864-2)
- 12.23 Hygienic encapsulated antenna (DN50 aseptic clamp to DIN 11864-3)
- 12.24 Hygienic encapsulated antenna (DN80 aseptic clamp to DIN 11864-3)
- 12.25 Hygienic encapsulated antenna (DN100 aseptic clamp to DIN 11864-3)
- 12.26 Hygienic encapsulated antenna (Tuchenhagen Type N)
- 12.27 Hygienic encapsulated antenna (Tuchenhagen Type F)
- 12.28 Threaded PVDF antenna
- 12.29 Threaded connection markings
- 12.30 Raised-Face flange
- 12.31 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna
- 12.32 Flat-Face flange
- 12.33 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2
- 12.34 Process connection tag (pressure rated versions)
- A Appendix A: Technical reference
- A.1 Principles of operation
- A.2 Echo Processing
- A.3 Analog Output
- A.4 Maximum Process Temperature Chart
- A.5 Process Pressure/Temperature derating curves
- A.5.1 Pressure Equipment Directive, PED, 14/68/EU
- A.5.2 Stainless steel horn antenna
- A.5.3 Stainless steel flanged horn antenna
- A.5.4 PTFE flanged encapsulated antenna
- A.5.5 Aluminum horn, with polypropylene lens antenna version with polypropylene flange
- A.5.6 PVDF antenna
- A.5.7 Hygienic encapsulated antenna
- A.6 Loop power
- A.7 Startup behavior
- B Appendix B: HART communications
- C Appendix C: Certificates and support
- 13 List of abbreviations
- 14 LCD menu structure
- Glossary
- Index
A.2.3 CLEF Range
CLEF Range (2.8.4.4.) is referenced from Low Calibration Point (process empty level ). When
the Hybrid algorithm is selected in Position Detect (2.8.4.2.), the CLEF algorithm will be applied
up to the limit of CLEF Range. Above this limit the Center algorithm will be applied.
1
3
4
5
2
① CLEF Range
② (Center algorithm applied)
③ High Calibration Point (process full level)
④ Sensor reference point
⑤ Low Calibration Point (process empty level )
A.2.4 Echo Threshold
Confidence (2.8.6.1.) describes the quality of an echo. Higher values represent higher
quality. Echo Threshold (2.8.4.3.) defines the minimum confidence value required for an echo
to be accepted as valid and evaluated.
A.2.5 Echo Lock
If the echo selected by Algorithm is within the Echo Lock window, the window is centered about
the echo, which is used to derive the measurement. In radar applications, two measurement
verification options are used with Echo Lock (2.8.5.1.):
Lock Off
SITRANS LR250 responds immediately to a new selected echo (within the restrictions set by
the Maximum Fill / Empty Rate), but measurement reliability is affected.
Material Agitator
A new measurement outside the Echo Lock Window must meet the sampling criteria before the
window will move to include it.
The other available options, Maximum Verification and Total Lock are not recommended for
radar.
Appendix A: Technical reference
A.2 Echo Processing
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG 227