Siemens HydroRanger 200 HMI Operating Instructions Manual page 7

Obstructions in the sound beam .........................................................................................229
Nozzle mountings ....................................................................................................................229
Set the HydroRanger 200 HMI to ignore the bad echo ..................................................229
Wrong reading ...................................................................................................................................230
Types of wrong readings ......................................................................................................230
Liquid splashing .......................................................................................................................230
Adjust the Echo Algorithm ....................................................................................................230
Transducer ringing ...........................................................................................................................230
Unit repair and excluded liability ...................................................................................................231
Technical data ...............................................................................................................233
Appendix A: Technical reference ..............................................................................239
Transmit pulse ...................................................................................................................................239
Echo processing ................................................................................................................................239
TVT (Time Varying Threshold) curves ..........................................................................................240
Auto False Echo Suppression ..............................................................................................240
Algorithm ........................................................................................................................ 241
Distance calculation .........................................................................................................................241
Sound Velocity ...................................................................................................................................242
Scanning .............................................................................................................................................243
Volume calculation ...........................................................................................................................243
Universal Curved .....................................................................................................................244
Flow calculation ................................................................................................................................244
Universal Linear .......................................................................................................................245
Universal Curved .....................................................................................................................245
Response Rate ...................................................................................................................................246
Analog Output ....................................................................................................................................246
Current Output Function ........................................................................................................246
Loss of Echo (LOE) ..................................................................................................................247
Fail-safe Mode .............................................................................................................. 247
Appendix B: Pump control reference ........................................................................248
Pump control options .......................................................................................................................248
Pump groups ............................................................................................................................248
Pump by rate ............................................................................................................................248
Pump control algorithms .................................................................................................................248
Fixed Duty Assist .....................................................................................................................249
Fixed Duty Backup ..................................................................................................................249
Alternate Duty Assist .............................................................................................................250
Alternate Duty Backup ..........................................................................................................250
Service Ratio Duty Assist .....................................................................................................251
Service Ratio Duty Backup ...................................................................................................252
First In First Out ........................................................................................................................252
Pump by Rate ...........................................................................................................................252
Other pump controls .........................................................................................................................252
Appendix C: Communications .....................................................................................253
HydroRanger 200 HMI communication systems .......................................................................253
Optional SmartLinx®Cards ............................................................................................................253
Communication systems .................................................................................................................253
Communication ports .......................................................................................................................254
Modbus ......................................................................................................................................254
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