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Table of Contents
Chapter 1: Introduction to TZN Meters (STD & CUS) ........................................................................................... 3
Chapter 2: Meter Components by Meter Size ...................................................................................................... 4
Chapter 3: Equipment Receipt, Storage and Handling ......................................................................................... 6
Chapter 4: Installation and Operation ................................................................................................................... 7
Chapter 5: Commissioning ................................................................................................................................... 13
Chapter 6: Maintenance ....................................................................................................................................... 14
Chapter 7: Troubleshooting ................................................................................................................................. 14
Chapter 8: Replacement – Repair ........................................................................................................................ 15
Chapter 9: Equipment removal ............................................................................................................................ 19
Appendix 1 – Alternative configurations ............................................................................................................. 20
Appendix 2 – Meter drawings by size and type .................................................................................................. 21
Appendix 2 - K-factor – Flowrate/Frequency ...................................................................................................... 27
Appendix 3 - Operating restrictions & Special recommendations .................................................................... 28
Safety Consideration ............................................................................................................................................. 29
Table of Figures
Figure 1. Mechanics of Signal Generation of Helical Turbines ............................................................................ 3
Figure 2. Meter body types by size ......................................................................................................................... 4
Figure 3. Cartridge types by size ............................................................................................................................. 5
Figure 4. Complete Meter run with upstream/downstream spool pieces and flow conditioner ...................... 6
Figure 5. Proper lifting technique for meters > 6 inches ...................................................................................... 7
Figure 6. Proper pipe alignment for meter installation......................................................................................... 8
Figure 7. Recommended tightening torque for Klingersil gasket type ................................................................ 9
Figure 8. Factory wiring of pickup coil: with and without preamp ................................................................... 11
Figure 9. Types of preamplifiers........................................................................................................................... 11
Figure 10. Typical wiring diagram for 2 wires FH71with Input Impedance greater than 10 kΩ ..................... 12
Figure 11. Typical wiring diagram for 3 wires FH71 (Open Collector) ............................................................... 12
Figure 12. Example wiring diagram for 3 wires FH71 (Open Collector) with isolator ..................................... 12
Figure 13. Typical 2 wires FH71 connection to SPIRIT Flow-X Flow Computer ................................................ 13
Figure 14. Typical 3 wires FH71 connection to Emerson S600 FloBoss Flow Computer ................................. 13
Figure 15. Typical 2 wires FH71 connection to OMNI 3000/6000 Flow Computer .......................................... 13
Figure 16. Illustration of Preamplifier Replacement .......................................................................................... 15
Figure 17. Illustration of Removal of Metal Ring type pickup coil ..................................................................... 16
Figure 18. Illustration of Removal of Engineered Polymer Ring type pickup coil ............................................ 17
Figure 19. Cartridge replacement – meters <3’’ ................................................................................................. 17
Figure 20. Cartridge replacement for meters 4’’ - 14’’ ....................................................................................... 18
Figure 21. Cartridge replacement – meters >16’’ ............................................................................................... 18
Figure 22. CUS Cartridge removal ........................................................................................................................ 19
Figure 23. TZN with local totalizer ....................................................................................................................... 20
Figure 24. TZN with thermal extensions .............................................................................................................. 20
Figure 25. TZN with 3 pulse outputs .................................................................................................................... 20
Figure 26. Nominal Size STD ≤ 3'' ......................................................................................................................... 21
Figure 27. Nominal Size CUS ≤ 3'' ......................................................................................................................... 22
Figure 28. Nominal Size STD 4''-14'' ..................................................................................................................... 22
Figure 29. Nominal Size CUS 4''-14'' .................................................................................................................... 24
Figure 30. Nominal Size STD > 16'' ....................................................................................................................... 25
Figure 31. Nominal Size CUS > 16''....................................................................................................................... 26
