Operating Instructions

Table Of Contents
9.2 Cleaning ...............................................................................................................................153
9.3 Maintenance and repair work...............................................................................................154
9.3.1 Unit repair and excluded liability ..........................................................................................155
9.3.2 Part replacement..................................................................................................................155
9.4 Disposal ...............................................................................................................................157
9.5 Return procedure .................................................................................................................157
10 Diagnosing and troubleshooting ...............................................................................................................159
10.1 Communication troubleshooting...........................................................................................159
10.2 Device status icons ..............................................................................................................159
10.3 General fault codes ..............................................................................................................160
10.4 Operation troubleshooting....................................................................................................163
11 Technical data ..........................................................................................................................................165
11.1 Power ...................................................................................................................................165
11.2 Performance.........................................................................................................................165
11.3 Interface ...............................................................................................................................167
11.4 Mechanical ...........................................................................................................................168
11.5 Environmental ......................................................................................................................170
11.6 Process ................................................................................................................................170
11.7 Approvals .............................................................................................................................171
11.8 Programmer (infrared keypad) .............................................................................................173
12 Dimension drawings .................................................................................................................................175
12.1 Universal polymeric flange ...................................................................................................175
12.2 Aluminum horn antenna .......................................................................................................177
12.3 Mounting bracket .................................................................................................................178
12.4 Aluminum horn with polypropylene lens antenna and polymeric flange ..............................180
12.5 Stainless steel threaded horn antenna.................................................................................181
12.6 Stainless steel threaded horn antenna with extension.........................................................184
12.7 Stainless steel flanged horn antenna ...................................................................................186
12.8 Stainless steel flanged horn antenna with extension ...........................................................188
12.9 PTFE Flanged encapsulated antenna (2"/DN50/50A sizes only).........................................190
12.10 PTFE Flanged encapsulated antenna (3"/DN80/80A sizes and larger)...............................192
12.11 Hygienic encapsulated antenna (2" ISO 2852 sanitary clamp)............................................194
12.12 Hygienic encapsulated antenna (3" ISO 2852 sanitary clamp)............................................195
12.13 Hygienic encapsulated antenna (4" ISO 2852 sanitary clamp)............................................196
12.14 Hygienic encapsulated antenna (DN50 nozzle/slotted nut to DIN 11851) ..........................197
Table of contents
SITRANS LR250 with mA/HART
6 Operating Instructions, 10/2019, A5E32220602-AG