User's Manual

Table Of Contents
SITRANS LR250 (HART)
Operating Instructions, 01/2014, A5E32220602-AB
3
Table of contents
1 Introduction ............................................................................................................................................. 9
1.1 The manual .................................................................................................................................... 9
1.2 Firmware revision history ............................................................................................................. 10
2 Safety notes .......................................................................................................................................... 11
2.1 Safety marking symbols ............................................................................................................... 11
2.2 FCC Conformity ........................................................................................................................... 11
2.3 CE Electromagnetic Compatibility (EMC) Conformity.................................................................. 12
3 Description ............................................................................................................................................ 13
3.1 SITRANS LR250 overview ........................................................................................................... 13
3.2 Programming ................................................................................................................................ 14
3.3 Applications .................................................................................................................................. 14
3.4 Approvals and certificates ............................................................................................................ 14
4 Installing/mounting ................................................................................................................................ 15
4.1 Pressure applications ................................................................................................................... 16
4.1.1 Pressure Equipment Directive, PED, 97/23/EC ........................................................................... 16
4.2 Mounting location ......................................................................................................................... 17
4.2.1 Nozzle design ............................................................................................................................... 17
4.2.2 Nozzle Location............................................................................................................................ 18
4.2.3 Orientation in a vessel with obstructions ..................................................................................... 20
4.2.4 Mounting on a Stillpipe or Bypass Pipe ....................................................................................... 20
4.2.5 Device orientation ........................................................................................................................ 21
4.3 Installation instructions ................................................................................................................. 21
4.4 Flange bolting, Flanged encapsulated antenna only ................................................................... 22
5 Connecting ........................................................................................................................................... 25
5.1 Power ........................................................................................................................................... 25
5.2 Connecting SITRANS LR250 ....................................................................................................... 26
5.3 Wiring setups for hazardous area installations ............................................................................ 28
5.3.1 Intrinsically safe wiring ................................................................................................................. 28
5.3.2 Non-sparking wiring ..................................................................................................................... 30
5.3.3 Non-incendive wiring (US/Canada only) ...................................................................................... 30
5.3.4 Flameproof wiring......................................................................................................................... 31
5.3.5 Increased safety wiring ................................................................................................................ 32