Siemens Sitrans LR250 - Default Chapter; Table of Contents

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Table of Contents
Table of Contents
Table of Contents .................................................................................................................i
Safety Notes .............................................................................................................................................1
Safety marking symbols ..............................................................................................................1
FCC Conformity ........................................................................................................................................1
The Manual ...............................................................................................................................................2
Application Examples ...................................................................................................................2
Technical Support ....................................................................................................................................2
Abbreviations and Identifications .......................................................................................................3
SITRANS LR250 Overview ................................................................................................. 4
Specifications ......................................................................................................................5
Power............................................................................................................................................. 5
Performance................................................................................................................................. 5
Interface ........................................................................................................................................ 6
Mechanical................................................................................................................................... 6
Environmental .............................................................................................................................. 7
Process.......................................................................................................................................... 7
Approvals...................................................................................................................................... 7
Programmer (infrared keypad) ................................................................................................ 8
Dimensions ...............................................................................................................................................9
Flanged Horn ..................................................................................................................................9
Flat Face Flange ...........................................................................................................................10
Threaded Horn Antenna with extension ...............................................................................12
Installation ......................................................................................................................... 14
Mounting location .................................................................................................................................15
Nozzle design ...............................................................................................................................15
Nozzle location .............................................................................................................................15
Orientation in a vessel with obstructions .............................................................................16
Mounting on a Stillpipe or Bypass Pipe ................................................................................16
Installation Instructions .......................................................................................................................17
Wiring .................................................................................................................................. 18
Power .......................................................................................................................................................18
Connecting SITRANS LR250 ...............................................................................................................18
Basic PLC configuration with PROFIBUS PA ........................................................................19
Wiring Setups for hazardous area installations ............................................................................19
PLC configuration with PROFIBUS PA for hazardous areas ............................................20
Instructions specific to hazardous area installations ..................................................................23
Quick Start via local operation ......................................................................................24
Activating SITRANS LR250 .................................................................................................................24
The LCD Display ...........................................................................................................................24
Handheld Programmer ...............................................................................................................25
Programming SITRANS LR250 .................................................................................................26
Quick Start Wizard via the handheld programmer .......................................................................30
Auto False Echo Suppression ............................................................................................................32