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
Signal Processing (2.8.)
Note
Default settings in the parameter tables are indicated with an asterisk (*) unless explicitly stated.
Near Range (2.8.1.)
The range in front of the device (measured from the sensor reference point) within which any
echoes will be ignored. This is sometimes referred to as blanking or a dead zone. The factory
setting is 50 mm (2") past the end of the antenna, and the default is dependent on the antenna
type and process connection. [See Dimension drawings (Page 175) for antenna heights.]
Values Range: 0 to 20 m (0 to 65.6 ft)
Default depends on antenna type and process connection:
Related parameters Units (2.2.1.)
Far Range (2.8.2.)
Note
Far Range can extend beyond the bottom of the vessel.
Allows the material level to drop below Low Calibration Point without generating a Loss of Echo
(LOE) state. See Sensor Mode (2.2.2.) for an illustration.
Values Range: Min. = Low Calibration Pt.
Max. = 23 m (75.45 ft)
Default: Value for Low Calibration Pt. + 1 m (3.28 ft)
Related parameters Units (2.2.1.)
Use this feature if the measured surface can drop below the Low Cal. Point in normal operation.
Propogation Factor (2.8.3.)
Note
● When operating in a stillpipe, values for CLEF Range (2.8.4.4.), and for the propagation
factor, should be set according to the pipe size. See the table below.
● For reliable results the antenna size must be close to the pipe size.
Compensates for the change in microwave velocity due to propagation within a metal stillpipe
instead of in free space.
Values Range 0.3 to 1.0 depending on pipe size
Default 1.0000
Nominal Pipe Size
a)
40 mm (1.5") 50 mm (2") 80 mm (3") 100 mm (4")
Parameter reference
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG 121