KEP ES749 - Page 4

ES749 Flow Computer
CONTENTS
7. PRINCIPLE OF OPERATION
7.1 General .......................................................................................................................92
7.2 Square Law Flowmeter Considerations ...................................................................... 92
7.3 Flow Equations ........................................................................................................... 92
7.3.1 Flow Input Computation .............................................................................. 92
7.3.2 Pressure Computation ................................................................................ 93
7.3.3 Temperature Computation .......................................................................... 93
7.3.4 Density/Viscosity Computation ...................................................................93
7.3.5 Corrected Volume Flow Computation ......................................................... 94
7.3.6 Mass Flow Computation ............................................................................. 95
7.3.7 Combustion Heat Flow Computation .......................................................... 95
7.3.8 Heat Flow Computation .............................................................................. 96
7.3.9 Sensible Heat Flow Computation ............................................................... 96
7.3.10 Liquid Delta Heat Computation ................................................................. 96
7.3.11 Expansion Factor Computation for Square Law Flowmeters ................... 96
7.3.12 Uncompensated Flow Computation ......................................................... 99
7.3.13 ILVA Flow Meter Equations ..................................................................... 100
7.4 Computation of the D.P. Factor ................................................................................ 101
8. RS-232 SERIAL PORT
8.1 RS-232 Serial Port Description ................................................................................. 102
8.2 Instrument Setup by PC Over Serial Port ................................................................ 102
8.3 Operation of Serial Communication Port with Printers ............................................. 102
8.4 SUPERtrol II RS-232 Port Pinout ............................................................................. 102
9. RS-485 SERIAL PORT
9.1 RS-485 Serial Port Description ................................................................................. 103
9.2 General .....................................................................................................................103
9.3 Operation of Serial Communication Port with PC .................................................... 103
9.4 SUPERtrol II RS-485 Port Pinout ............................................................................. 103
10. FLOW COMPUTER SETUP SOFTWARE
10.1 System Requirements ............................................................................................104
10.2 Cable and Wiring Requirements ............................................................................. 104
10.3 Installation for Windows™3.1 or 3.11 ..................................................................... 104
10.4 Using the Flow Computer Setup Software ............................................................. 104
10.5 File Tab ................................................................................................................... 105
10.6 Setup Tab ...............................................................................................................105
10.7 View Tab ................................................................................................................. 106
10.8 Misc. Tab ................................................................................................................106
11. GLOSSARY OF TERMS
10 Glossary Of Terms .....................................................................................................107
12. Diagnosis and Troubleshooting
12.1 Response of SUPERtrol II on Error or Alarm .......................................................... 110
12.2 Diagnosis Flowchart and Troubleshooting .............................................................. 110
12.3 Error Messages .......................................................................................................111
Appendix A
Fluid Properties Table ..................................................................................................... 114
Appendix B - Setup Menus
Setup Menus with Operator Code Access ...................................................................... 115
Setup Menus with Supervisor Code Access ................................................................... 116
Appendix C - RS-485 Modbus Protocol
Description ...................................................................................................................... 117
Wiring Pinout and Installation ......................................................................................... 118
Register and Coil Usage .................................................................................................120
Warranty .....................................................................................................................................123
Decoding Part Number ................................................................................................................ 123