Siemens SITRANS LUT400 - Page 14

Table of contents
SITRANS LUT400
12 Operating Instructions, 07/2019, A5E33329501-AC
A.2 Echo Processing .................................................................................................................. 291
A.2.1 Echo Selection ..................................................................................................................... 291
A.2.1.1 Time Varying Threshold (TVT) ............................................................................................. 291
A.2.1.2 Algorithm .............................................................................................................................. 292
A.2.1.3 Confidence ........................................................................................................................... 293
A.2.1.4 Echo Threshold .................................................................................................................... 293
A.2.1.5 Figure of Merit ...................................................................................................................... 293
A.2.2 Measurement Range ........................................................................................................... 295
A.2.3 Measurement Response ...................................................................................................... 296
A.2.3.1 Damping ............................................................................................................................... 296
A.3 Analog Output ...................................................................................................................... 297
A.3.1 Current Output Function (2.5.1.) .......................................................................................... 297
A.3.2 Loss of Echo (LOE) .............................................................................................................. 298
A.3.2.1 Fail-safe Mode ..................................................................................................................... 298
A.4 Distance Calculation ............................................................................................................ 298
A.4.1 Sound Velocity ..................................................................................................................... 299
A.5 Volume Calculation .............................................................................................................. 299
A.6 Pump Totalizers ................................................................................................................... 301
A.6.1 Inflow/Discharge Adjust ....................................................................................................... 301
A.7 Flow Calculation ................................................................................................................... 302
A.7.1 Method of Flow Calculation .................................................................................................. 302
A.7.2 Data Logging ........................................................................................................................ 303
B Technical Support .................................................................................................................................. 305
B.1 Technical support ................................................................................................................. 305
B.2 Certificates ........................................................................................................................... 305
C List of abbreviations ............................................................................................................................... 306
D LCD menu structure ............................................................................................................................... 308
Glossary ................................................................................................................................................ 320
Index ...................................................................................................................................................... 323