Liquid Controls SP4000 - Manual (Page 3)

7. PRINCIPLE OF OPERATION
7.1 General ...................................................................................................................... 97
7.2 Square Law Flowmeter Considerations ..................................................................... 97
7.3 Flow Equations ........................................................................................................... 97
7.3.1 Flow Input Computation ............................................................................. 97
7.3.2 Pressure Computation ............................................................................... 98
7.3.3 Temperature Computation .......................................................................... 98
7.3.4 Density/Viscosity Computation ................................................................... 98
7.3.5 Corrected Volume Flow Computation ........................................................ 99
7.3.6 Mass Flow Computation ........................................................................... 100
7.3.7 Combustion Heat Flow Computation ....................................................... 100
7.3.8 Heat Flow Computation ............................................................................ 101
7.3.9 Sensible Heat Flow Computation ............................................................. 101
7.3.10 Liquid Delta Heat Computation .............................................................. 101
7.3.11 Expansion Factor Computation for Square Law Flowmeters ................. 101
7.3.12 Uncompensated Flow Computation ....................................................... 102
7.4 Computation of the D.P. Factor ................................................................................ 103
8. RS-232 SERIAL PORT
8.1 RS-232 Serial Port Description ................................................................................ 104
8.2 Instrument Setup by PC Over Serial Port ................................................................ 104
8.3 Operation of Serial Communication Port with Printers ............................................. 104
8.4 SP4000 RS-232 Port Pinout .................................................................................... 104
9. RS-485 SERIAL PORT
9.1 RS-485 Serial Port Description ................................................................................ 105
9.2 General .................................................................................................................... 105
9.3 Operation of Serial Communication Port with PC .................................................... 105
9.4 SP4000 RS-485 Port Pinout .................................................................................... 105
10. FLOW COMPUTER SETUP SOFTWARE
10.1 System Requirements ............................................................................................ 106
10.2 Cable and Wiring Requirements ............................................................................ 106
10.3 Installation for Windows™3.1 or 3.11 ..................................................................... 106
10.4 Using the Flow Computer Setup Software ............................................................. 106
10.5 File Tab ................................................................................................................... 107
10.6 Setup Tab ............................................................................................................... 107
10.7 View Tab ................................................................................................................. 108
10.8 Misc. Tab ................................................................................................................ 108
11. GLOSSARY OF TERMS
10 Glossary Of Terms .................................................................................................... 109
12. Diagnosis and Troubleshooting
12.1 Response of SP4000 on Error or Alarm ................................................................. 112
12.2 Diagnosis Flowchart and Troubleshooting ............................................................. 112
12.3 Error Messages ...................................................................................................... 113
Appendix A
Fluid Properties Table .................................................................................................... 116
Appendix B - Setup Menus
Setup Menus with Operator Code Access ..................................................................... 117
Setup Menus with Supervisor Code Access .................................................................. 118
Warranty ...................................................................................................................................... 119
Decoding Part Number ................................................................................................................ 119
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