Table of contents
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
7
12.15 Hygienic encapsulated antenna (DN80 nozzle/slotted nut to DIN 11851) ......................... 206
12.16 Hygienic encapsulated antenna (DN100 nozzle/slotted nut to DIN 11851) ....................... 207
12.17 Hygienic encapsulated antenna (DN50 aseptic slotted nut to DIN 11864-1) ..................... 208
12.18 Hygienic encapsulated antenna (DN80 aseptic slotted nut to DIN 11864-1) ..................... 209
12.19 Hygienic encapsulated antenna (DN100 aseptic slotted nut to DIN 11864-1) ................... 210
12.20 Hygienic encapsulated antenna (DN50 aseptic flange to DIN 11864-2) ............................ 211
12.21 Hygienic encapsulated antenna (DN80 aseptic flange to DIN 11864-2) ............................ 212
12.22 Hygienic encapsulated antenna (DN100 aseptic flange to DIN 11864-2) .......................... 213
12.23 Hygienic encapsulated antenna (DN50 aseptic clamp to DIN 11864-3) ............................ 214
12.24 Hygienic encapsulated antenna (DN80 aseptic clamp to DIN 11864-3) ............................ 215
12.25 Hygienic encapsulated antenna (DN100 aseptic clamp to DIN 11864-3) .......................... 216
12.26 Hygienic encapsulated antenna (Tuchenhagen Type N) .................................................. 217
12.27 Hygienic encapsulated antenna (Tuchenhagen Type F) ................................................... 218
12.28 Threaded PVDF antenna ................................................................................................. 219
12.29 Threaded connection markings ........................................................................................ 220
12.30 Raised-Face flange ......................................................................................................... 221
12.31 Raised-Face flange per EN 1092-1 for flanged encapsulated antenna ............................. 224
12.32 Flat-Face flange .............................................................................................................. 226
12.33 Aseptic/hygienic flange DN50, DN80, DN100 for DIN 11864-2 ......................................... 228
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 ............................................................................................................. 234
A.2.1 Process Intelligence ........................................................................................................ 234
A.2.2 Echo Selection ................................................................................................................ 234
A.2.3 CLEF Range ................................................................................................................... 237
A.2.4 Echo Threshold ............................................................................................................... 237
A.2.5 Echo Lock ....................................................................................................................... 238
A.2.6 Auto False Echo Suppression .......................................................................................... 238
A.2.7 Measurement Range ....................................................................................................... 240
A.2.8 Measurement Response.................................................................................................. 240
A.2.9 Damping ......................................................................................................................... 241
A.3 Analog Output ................................................................................................................. 241
A.3.1 Sensor Mode ................................................................................................................... 242
A.3.2 Current Output Function .................................................................................................. 242
A.3.3 Loss of Echo (LOE) ......................................................................................................... 243
A.3.4 Fail-safe Mode ................................................................................................................ 243
A.4 Maximum Process Temperature Chart............................................................................. 244
A.5 Process Pressure/Temperature derating curves .............................................................. 245
A.5.1 Pressure Equipment Directive, PED, 14/68/EU ................................................................ 246
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