Siemens SITRANS L 7ML5400 Operating Instructions Manual page 12

Table of contents
A.2 Echo Processing ............................................................................................................... 295
A.2.1 Echo Selection ................................................................................................................. 295
A.2.1.1 Time Varying Threshold (TVT) .......................................................................................... 295
A.2.1.2 Algorithm ........................................................................................................................ 296
A.2.1.3 Confidence ...................................................................................................................... 297
A.2.1.4 Echo Threshold ................................................................................................................ 297
A.2.1.5 Figure of Merit ................................................................................................................. 297
A.2.2 Measurement Range ........................................................................................................ 299
A.2.3 Measurement Response ................................................................................................... 300
A.2.3.1 Damping ......................................................................................................................... 300
A.3 Analog Output ................................................................................................................. 301
A.3.1 Current Output Function (2.5.1.) ..................................................................................... 301
A.3.2 Loss of Echo (LOE) ........................................................................................................... 302
A.3.2.1 Fail-safe Mode ................................................................................................................. 302
A.4 Distance Calculation ........................................................................................................ 302
A.4.1 Sound Velocity ................................................................................................................. 303
A.5 Volume Calculation .......................................................................................................... 303
A.6 Pump Totalizers ............................................................................................................... 305
A.6.1 Inflow/Discharge Adjust ................................................................................................... 305
A.7 Flow Calculation .............................................................................................................. 306
A.7.1 Method of Flow Calculation ............................................................................................. 306
A.7.2 Data Logging ................................................................................................................... 307
B Product documentation and support ................................................................................................ 309
B.1 Product documentation ................................................................................................... 309
B.2 Technical support ............................................................................................................ 310
C List of abbreviations .......................................................................................................................... 311
D LCD menu structure ........................................................................................................................... 313
Glossary ............................................................................................................................................. 324
Index .................................................................................................................................................. 328
12
Operating Instructions, 04/2021, A5E33329501-AG
SITRANS LUT400