Siemens Sitrans LR250 - Page 4

Table of contents
SITRANS LR250 with FOUNDATION FIELDBUS
4 Compact Operating Instructions, 09/2021, A5E48453221-AB
4.4 Installation instructions ...................................................................................................... 24
4.4.1 Threaded versions ............................................................................................................. 25
4.4.2 Flanged versions ................................................................................................................ 25
4.4.3 Hygienic versions ............................................................................................................... 27
4.5 Disassembly ....................................................................................................................... 28
5 Connecting .......................................................................................................................................... 29
5.1 Basic safety information ..................................................................................................... 29
5.2 Connecting SITRANS LR250 ................................................................................................ 30
5.3 Wiring setups for hazardous area installations .................................................................... 34
5.3.1 Configuration with Foundation Fieldbus for hazardous areas .............................................. 35
5.3.2 Intrinsically safe wiring ...................................................................................................... 36
5.3.3 Non-sparking wiring .......................................................................................................... 37
5.4 Instructions specific to hazardous area installations ............................................................ 38
5.4.1 (Reference European ATEX Directive 2014/34/EU, Annex II, 1.0.6 and UK Regulation SI
2016/1107) ....................................................................................................................... 38
6 Commissioning .................................................................................................................................... 40
6.1 Basic safety information ..................................................................................................... 40
6.2 Programming SITRANS LR250 ............................................................................................ 40
6.2.1 The LCD display ................................................................................................................. 41
6.2.2 Device status icons ............................................................................................................ 42
6.2.3 Handheld programmer (Part No. 7ML1930-1BK) ................................................................ 43
6.2.4 Programming via the handheld programmer ...................................................................... 45
6.2.5 Quick Start Wizard via the handheld programmer ............................................................... 49
7 Remote operation ................................................................................................................................ 53
7.1 SITRANS Communications: FOUNDATION FIELDBUS ............................................................ 53
8 Service and maintenance .................................................................................................................... 54
8.1 Basic safety information ..................................................................................................... 54
8.2 Cleaning ............................................................................................................................ 55
8.3 Maintenance and repair work............................................................................................. 56
8.3.1 Unit repair and excluded liability ........................................................................................ 56
8.3.2 Part replacement ............................................................................................................... 57
8.4 Disposal ............................................................................................................................. 57
8.5 Return procedure ............................................................................................................... 58
9 Technical specifications ....................................................................................................................... 59
9.1 Power ................................................................................................................................ 60
A Product documentation and support .................................................................................................. 61
A.1 Product documentation ..................................................................................................... 61
A.2 Technical support .............................................................................................................. 62
Index .................................................................................................................................................... 63