Safety Notes .............................................................................................................................................1

Safety marking symbols ..............................................................................................................1

FCC Conformity ........................................................................................................................................1

CE Electromagnetic Compatibility (EMC) Conformity ....................................................................2

Industry Canada ......................................................................................................................................2

The Manual ...............................................................................................................................................3

Application Examples ...................................................................................................................3

Technical Support ....................................................................................................................................3

Abbreviations and Identifications .............................................................................................4

SITRANS LR250 Overview ................................................................................................. 6

Specifications ...................................................................................................................... 7

Threaded Horn Antenna with extension ...............................................................................12

Flanged Horn ................................................................................................................................13

Raised Face Flange per EN 1092-1 .........................................................................................14

Flat Faced Flange ........................................................................................................................16

Installation ......................................................................................................................... 18

Pressure Equipment Directive, PED, 97/23/EC ...............................................................................19

Nozzle design ...............................................................................................................................19

Nozzle location .............................................................................................................................19

Orientation in a vessel with obstructions .............................................................................20

Mounting on a Stillpipe or Bypass Pipe ................................................................................20

Installation Instructions .......................................................................................................................21

Wiring ..................................................................................................................................22

Power .......................................................................................................................................................22

Connecting SITRANS LR250 ...............................................................................................................22

Basic Configuration with Foundation Fieldbus (H1) ...........................................................23

Wiring Setups for hazardous area installations ............................................................................24

Configuration with Foundation Fieldbus for hazardous areas ........................................24

Instructions specific to hazardous area installations ..................................................................29

Quick Start ..........................................................................................................................30

Activating SITRANS LR250 .................................................................................................................30

The LCD Display ...........................................................................................................................31

Handheld Programmer ...............................................................................................................32

Programming SITRANS LR250 .................................................................................................33

Quick Start Wizard via the handheld programmer .......................................................................36

Auto False Echo Suppression ............................................................................................................38

Requesting an Echo Profile ................................................................................................................38

Device Address ......................................................................................................................................38

Level application example ...................................................................................................................39

Operating via AMS Device Manager ............................................................................40

Functions in AMS Device Manager .................................................................................................40