Siemens SITRANS L Operating Instructions Manual page 7

12.18 Hygienic encapsulated antenna (DN80 aseptic slotted nut to DIN 11864-1) ...................... 211
12.19 Hygienic encapsulated antenna (DN100 aseptic slotted nut to DIN 11864-1) .................... 212
12.20 Hygienic encapsulated antenna (DN50 aseptic flange to DIN 11864-2) ............................. 213
12.21 Hygienic encapsulated antenna (DN80 aseptic flange to DIN 11864-2) ............................. 214
12.22 Hygienic encapsulated antenna (DN100 aseptic flange to DIN 11864-2) ........................... 215
12.23 Hygienic encapsulated antenna (DN50 aseptic clamp to DIN 11864-3) ............................. 216
12.24 Hygienic encapsulated antenna (DN80 aseptic clamp to DIN 11864-3) ............................. 217
12.25 Hygienic encapsulated antenna (DN100 aseptic clamp to DIN 11864-3) ........................... 218
12.26 Hygienic encapsulated antenna (Tuchenhagen Type N) .................................................... 219
12.27 Hygienic encapsulated antenna (Tuchenhagen Type F) ..................................................... 220
12.28 Threaded PVDF antenna ................................................................................................... 221
12.29 Threaded connection markings ........................................................................................ 222
12.30 Raised-Face flange ........................................................................................................... 223
12.31 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna ................................ 225
12.32 Flat-Face flange ............................................................................................................... 227
12.33 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2 .......................................... 229
12.34 Process connection tag (pressure rated versions) .............................................................. 231
A Appendix A: Technical reference ....................................................................................................... 233
A.1 Principles of operation ..................................................................................................... 233
A.2 Echo processing ............................................................................................................... 233
A.2.1 Process Intelligence ......................................................................................................... 233
A.2.2 Echo Selection ................................................................................................................. 234
A.2.3 CLEF Range ...................................................................................................................... 237
A.2.4 Measurement Response ................................................................................................... 237
A.2.5 Echo Threshold ................................................................................................................ 238
A.2.6 Echo Lock ........................................................................................................................ 238
A.2.7 Auto False Echo Suppression ............................................................................................ 238
A.2.8 Measurement Range ........................................................................................................ 240
A.2.9 Damping ......................................................................................................................... 240
A.2.10 Loss of Echo (LOE) ........................................................................................................... 240
A.2.10.1 LOE Timer ........................................................................................................................ 241
A.3 Maximum Process Temperature Chart .............................................................................. 241
A.4 Process Pressure/Temperature derating curves ................................................................. 242
A.4.1 Pressure Equipment Directive, PED, 2014/68/EU ............................................................... 243
A.4.2 Stainless steel horn antenna ............................................................................................ 244
A.4.3 Stainless steel flanged horn antenna ................................................................................ 245
A.4.4 PTFE flanged encapsulated antenna ................................................................................. 248
A.4.5 Aluminum horn, with polypropylene lens antenna version with polypropylene flange 3
inch/80 mm size only ....................................................................................................... 249
A.4.6 PVDF antenna .................................................................................................................. 250
A.4.7 Hygienic encapsulated antenna........................................................................................ 250
SITRANS LR250 with FOUNDATION FIELDBUS
Operating Instructions, 09/2021, A5E32221411-AH
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