Siemens SITRANS LR500 Series - Page 4

4 Description........................................................................................................................................... 31
4.1 Description ........................................................................................................................ 31
4.2 Applications....................................................................................................................... 31
4.3 System con󹪝gur
ation ......................................................................................................... 32
4.4 Communication ................................................................................................................. 32
5 Installing/mounting ............................................................................................................................. 35
5.1 Basic safety notes............................................................................................................... 35
5.1.1 Handling the device ........................................................................................................... 35
5.1.2 Pressure Equipment Directive (PED) 2014/68/EU ................................................................. 35
5.1.3 Installation location requirements ...................................................................................... 37
5.1.3.1 Direct sunlight ................................................................................................................... 38
5.1.4 Proper mounting................................................................................................................ 38
5.1.5 Incorrect disassembly......................................................................................................... 39
5.2 Proper materials................................................................................................................. 39
5.3 Sensor reference point....................................................................................................... 40
5.4 Nozzle mounting ............................................................................................................... 40
5.4.1 Nozzle mounting ............................................................................................................... 42
5.4.2 Thread sealing ................................................................................................................... 43
5.5 LR550 polymeric horn, liquids, and solids ........................................................................... 44
5.5.1 Mounting bracket .............................................................................................................. 45
5.6 Sunshield........................................................................................................................... 47
6 Connecting .......................................................................................................................................... 49
6.1 Basic safety notes............................................................................................................... 49
6.1.1 Missing PE/ground connection ........................................................................................... 49
6.1.2 Connecting or disconnecting in explosive environments ..................................................... 50
6.1.3 Note on electromagnetic compatibility ............................................................................... 51
6.1.4 Improvement of interference immunity.............................................................................. 52
6.2 Connecting SITRANS LR500 series ..................................................................................... 52
6.2.1 Wiring instructions............................................................................................................. 52
6.2.2 Input supply cable note...................................................................................................... 53
6.2.3 Connecting 󹪝eld device and SITRANS AW050 Bluetooth adapter.......................................... 54
6.2.3.1 Installing or replacing Bluetooth adapter ............................................................................ 55
6.3 Hazardous area installations............................................................................................... 56
6.3.1 Nameplates for hazardous area installation ........................................................................ 56
6.3.1.1 Intrinsically safe................................................................................................................. 56
6.3.1.2 Dust ignition...................................................................................................................... 57
6.3.1.3 Non-incendive ................................................................................................................... 59
6.3.2 Further information related to hazardous area installations................................................. 59
6.3.3 Instructions speci󹪝c to hazardous area installation.............................................................. 59
6.3.3.1 Speci󹪝c conditions of use (denoted by X after the certi󹪝cate number) ................................. 59
6.3.3.2 Instructions speci󹪝c to hazardous area installations (Reference ATEX Directive
2014/34/EU, Annex II, 1.0.6 and UK Regulations SI 2016/1107))......................................... 60
Table of contents
SITRANS LR500 series with mA/HART
4 Operating Instructions, 03/2024, A5E51099898-AA