Liquid Controls SP3850 - Manual (Page 4)

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SP3850 Flow Computer
CONTENTS
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7. PRINCIPLE OF OPERATION
7.1 General ............................................................................................................... 41
7.2 Flow Equations ................................................................................................... 41
7.3 Calculating the Expansion Factor ....................................................................... 44
7.4 Computation of Viscosity Coef. A and B ............................................................. 45
7.5 Linearization Table .............................................................................................. 46
7.5.1 Linearization Table General Information .............................................. 46
7.5.2 Linearization Table for Pulse Inputs ..................................................... 46
7.5.3 Linearization Table Interpolation .......................................................... 46
7.6 Universal Viscosity Curve (UVC) ........................................................................ 46
7.7 Strouhal Roshko Curve (StRo) ........................................................................... 46
8. TEST, SERVICE and MAINTENANCE
8.1 Test Menus ......................................................................................................... 47
8.2 Test Sub-Menus .................................................................................................. 48
8.2.1 Audit Trail ............................................................................................. 48
8.2.2 Error History ........................................................................................ 48
8.2.3 Print System Setup .............................................................................. 48
8.2.4 Keypad test ......................................................................................... 49
8.2.5 Display test .......................................................................................... 49
8.2.6 Calibrate Aux1 0mA ............................................................................. 50
8.2.7 Calibrate Aux1 20mA ........................................................................... 50
8.2.8 Calibrate Aux2 0mA ............................................................................. 51
8.2.9 Calibrate Aux2 20mA ........................................................................... 51
8.2.10 Calibrate Thermistor: 100 Ohms ....................................................... 52
8.2.11 Calibrate Thermistor: Open ............................................................... 52
8.2.12 Calibrate Aux2 0V .............................................................................. 53
8.2.13 Calibrate Aux2 10V ............................................................................ 53
8.2.14 Calibrate 100 ohm RTD ..................................................................... 53
8.2.15 Calibrate 4mA Out ............................................................................. 54
8.2.16 Calibrate 20mA Out ........................................................................... 54
8.2.17 Analog In Test .................................................................................... 54
8.2.18 Pulse input test .................................................................................. 55
8.2.19 Analog out test ................................................................................... 55
8.2.20 Excitation out test .............................................................................. 55
8.2.21 Pulse out test ..................................................................................... 56
8.2.22 Relay test ......................................................................................... 56
8.2.23 Control input test ............................................................................... 56
8.2.24 Battery Voltage test ........................................................................... 57
8.2.25 Data logger utility ............................................................................... 57
8.3 Internal Fuse Replacement ................................................................................. 58
9. RS-232 SERIAL PORT
9.1 RS-232 Serial Port Description ........................................................................... 59
9.2 Instrument Setup by PC Over Serial Port ........................................................... 59
9.3 Operation of Serial Communication Port with Printers ....................................... 59
9.4 SP3850 RS-232 Port Pinout ............................................................................... 59
10. RS-485 SERIAL PORT
10.1 RS-485 Serial Port Description ......................................................................... 60
10.2 General ............................................................................................................. 60
10.3 Operation of Serial Communication Port with PC ............................................. 60
10.4 SP3850 RS-485 Port Pinout ............................................................................. 60
11. FLOW COMPUTER SETUP SOFTWARE
11.1 System Requirements ....................................................................................... 61
11.2 Cable and Wiring Requirements ....................................................................... 61
11.3 Installation for Windows™3.1 or 3.11 ................................................................ 61
11.4 Using the Flow Computer Setup Software ........................................................ 62
11.5 File Tab .............................................................................................................. 62
11.6 Setup Tab .......................................................................................................... 62
11.7 View Tab ............................................................................................................ 63
11.8 Misc. Tab ........................................................................................................... 63
12. GLOSSARY OF TERMS
12 Glossary Of Terms ............................................................................................... 64
13. DIAGNOSIS AND TROUBLESHOOTING
13.1 Response of SP3850 on Error or Alarm: .......................................................... 68
13.2 Diagnosis Flow Chart and Troubleshooting ...................................................... 69
13.3 Error & Warning Messages: .............................................................................. 70
13.3.1 Sensor/Process Alarms ..................................................................... 70
13.3.2 Self Test Alarms ................................................................................. 71
APPENDIX A ( Fluid Properties Table) ................................................................. 72
APPENDIX B (Setup Menus) ............................................................................................. 73