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Today’s Agenda:

Residential Metering Technologies By: Ryan Fields TAUD Technical Conference Gatlinburg, TN March 2013. 1. Today’s Agenda:. Why the need for Advancements? Mechanical Meter Technologies Multi-jet Positive Displacement Floating Ball Technology 1-1/2 – 2 Omni R2

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Today’s Agenda:

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  1. Residential Metering TechnologiesBy: Ryan Fields TAUD Technical Conference Gatlinburg, TN March 2013 1

  2. Today’s Agenda: • Why the need for Advancements? • Mechanical Meter Technologies • Multi-jet • Positive Displacement • Floating Ball Technology • 1-1/2 – 2 Omni R2 • Solid State Meter Technologies • Fluid Oscillator • Ultrasonic • Electromagnetic

  3. Why the Advancements? • If mechanical measurement has served us for so long, why make a change? • Water Loss = Revenue Loss • New material regulations / January 2014 Lead Free • Inherent low flow limitations with mechanical meters • Increase importance on leak detection • Increased need for system data • Improvements in measurement technology

  4. Multi-Jet

  5. Multi-jet • Water Uniformly Spread Across Multiple Inlet Ports Flows across an impeller • Impeller velocity determines flow rate • Register determines volume

  6. Multi-Jet • What is it? • Velocity type meter where openings in the meter chamber direct the water flow across a multi-vaned rotor. The output speed of the rotor is proportional to the quantity of water passing through the measuring chamber.

  7. Multi-Jet • First designed and produced in Germany 1867 • Primarily used overseas however they have been available to the US Water industry since early 1960’s • Fall under AWWA C708 specification

  8. Multi-Jet • Brands • Precision PMM – discontinued March 31, 2012 • Precision PMX - discontinued • MasterMeter

  9. Multi-jet • Advantages • Great at passing foreign matter • Low flow sensitivity (¼ GPM on 5/8x3/4) • 97 – 103 accuracy range • Relatively low head loss for mechanical meter (3.1 PSI at 10 GPM) • Dry-top models registers could be accessed in-line (ex PMM) • Available in a range of sizes (5/8 – 2”) • Economically priced • Disadvantages • Potential jetting (finger over a garden hose / strainer) • Horizontal / plumb installation required for accuracy • Wet-top models had to be pulled for maintenance (ex PMX)

  10. Positive Displacement • Two Types • Nutating Disc Neptune Badger Hersey • Oscillating Piston Sensus Elster – No longer produced Mastermeter

  11. Positive Displacement – Nutating Disc

  12. Positive Displacement / Nutating Disc • What is it? • Nutatingdisc meters have a round disc that is located inside a cylindrical chamber. The disc is mounted on a spindle. • The disc nutates, or wobbles, as it passes a known volume of liquid through the cylindrical chamber.

  13. Positive Displacement – Nutating Disc

  14. Positive Displacement – Nutating Disc • Characteristics • Originated in the mid 1800’s • Volumetric-type meter • Ball and Socket measuring element

  15. Positive Displacement – Nutating Disc • Advantages • More accurate at low flows than multi-jet (@98.5) • Low friction loss (8.0 psi at 20 gpm) • ¼ - 20 GPM Flow Range (5/8x3/4) • Proven technology • Disadvantages • Less likely to effectively pass foreign material (as compared to Multijet) • Can stop up with sand, grit, or other elements easily • Single wear point on the ball

  16. Positive Displacement - Nutating Disc

  17. Positive Displacement - Nutating Disc

  18. Positive Displacement- Oscillating Piston

  19. Positive Displacement- Oscillating Piston

  20. Positive Displacement - Oscillating Piston

  21. Positive Displacement – Oscillating Piston • Characteristics • Volumetric-type meter • C700 • Floating piston • ¼ - 20 GPM Flow Range (5/8x3/4)

  22. Positive Displacement – Oscillating Piston • Advantages • More accurate at low flows than Multi-jet (@98.5) • Dual port design – floats piston • Low friction loss (7.0 psi at 20 gpm / SRII) • ¼ - 20 GPM Flow Range (5/8x3/4) • Large surface area to reduce wear • Proven technology • Disadvantages • Less likely to effectively pass foreign material (as compared to Multijet) • Can stop up with sand, grit, or other elements easily

  23. Oscillating Piston • Sensus SR • Sensus SRII • SensusAccustream • MasterMeter MMPD • Elster/Amco C700 – No longer producing mechanical meters

  24. Sensus R2 Omni Floating Ball Technology 24

  25. Floating Ball Technology • R2 replaces the 1-1/2 and 2” SR PD meter as well as the 1-1/2 and 2” PMM • Gives better low flow sensitivity and higher top end flow • Less cost than using Omni Compound C2 or Omni T2

  26. Floating Ball Technology • Characteristics of 2” R2 Omni • Operating temperature range of 33°F (.56°C) – 150°F (65.6°C). • Operating Range 100% ± 1.5% from 2.5 – 200 GPM (.56 – 45 m3/hr) • Low Flow 95% – 101.5% @ 1.0 GPM (.23 m3/hr) • Pressure Loss 7.0 psi @ 200 GPM (.48 bar @ 45 m3/hr) • Maximum Operating Pressure - 200 PSI (13.8 bar) • Flange Connections 2” U.S. ANSI B16.1 / AWWA Class 125 • Register: Fully electronic sealed register with programmable registration (Gal. /Cu.Ft./ Cu. Mtr. / Imp.Gal / Acre Ft.) • Programmable AMR/AMI reading • Guaranteed 10 year battery life

  27. Floating Ball Technology • Floating Ball Technology • Extended flow range • Improved accuracy • One measuring element

  28. Electronic Register • Three modes • AMR Output comes standard • Programmable features • LCD odometer • 10 year battery life • More data for better decision making AMR / AMI Pulse 31 Days • Registration Units • AMR Output Resolution • Pulse Output Resolution • Register Display

  29. Floating Ball – Register - AMR

  30. Floating Ball – Register - Total

  31. Floating Ball – Register - Test

  32. Floating Ball – Test Port

  33. Versatility • Standard laying lengths • Application flexibility • Interchangeable measuring chambers • Built in strainer and test plug • Drop-in chamber • Ease of maintenance

  34. Benefits… • Installation versatility • Extended flow ranges • Excellent return on investment Information Driven Utilities

  35. Solid State Meter Technology

  36. Solid State Meter Technology • 3 Different Types of Technology • Fluidic Oscillator • Residential Ultrasonic • Residential Magnetic

  37. Solid State Meter Technology • Fluidic Oscillator – Elster SM700

  38. Solid State Meter Technology • How does a Fluidic Oscillator Water Meter Work? • A special design of water flow chamber creates a fluctuating pressure sequence that causes the water flow to oscillate. • The frequency of the oscillations is directly proportional to the velocity (speed) of the water. • Sensors in the flow chamber count the oscillations.

  39. Solid State – Fluidic Oscillator • Advantages • NSF61 Certified • Battery life greater than 15 years • Low head loss (11 psi at 15 gpm) • Increased flow range of .10 – 20 gpm • Disadvantages • Relatively new meter • Metallic electrodes can corrode • Prone to recording electrical current at highest flow rate resulting in over- registration • Not offered in a 1”

  40. Solid State Meter Technology • Fluidic Oscillator Technology from Elster Metering – SM700

  41. Solid State - Ultrasonic • Residential Ultrasonic Technology from Badger Meter – E Series

  42. Solid State - Ultrasonic • Ultrasonic flow meters measure the difference of the transit time of pulses between two transducers. • Ultrasonic signals sent in forward and reverse directions of flow • Velocity of water determined by difference in two signals

  43. Solid State – Ultrasonic • Advantages • NSF61 Certified / Annex G • 9 digit LCD Display • Flow range of .05 – 25 gpm • Low head loss (2.3 psi at 15 gpm) • 20 year battery • 175 psi • Disadvantages • Relatively new meter • Ultrasonic reflectors extend thru flow tube and are open to build-up • Recommended installation is 5 (up) and 2 (down) for dampening effect • Because ultrasonic signals are sent every second to monitor flow, pulsation caused by pumps or regulators could create measurement errors • Accuracy can be affected by temperature, density, and viscosity of fluid being measured

  44. Solid State - Ultrasonic • Typical Ultrasonic Meter Diagram

  45. Badger E-Series Side View

  46. Electromagnetic

  47. Electro-Magnetic - Iperl

  48. Electro-Magnetic - Iperl • Mag Meter: Faraday’s law • States that the velocity of the fluid is directly proportional to an induced voltage as the fluid flows through a constant magnetic field. As the flow increases, so does the voltage, and in turn a greater volume of water is measured. • Patented features to achieve superior low flow accuracy with high flow capability

  49. Electro-Magnetic – Iperl • Advantages • No moving parts – 20 year accuracy • Lowest head loss (2.0 psi at 15 gpm) • Greatest Flow Range (.03 – 35 gpm on 5/8x3/4) • 200 PSI (highest rated on the market) • Temperature 33 F – 160 F • Burst Pressure – 1650 psi (twice the psi as SRII PD meter) • 20 year warranty on the battery • Tamperproof • Disadvantages • Cost

  50. Electro-Magnetic – Iperl Remanent Field Technology: What and Why? • Definition: “The magnetization left behind in a material after the external magnetic field is removed” • RemanentOperation Permits Continuous Measurement Without Applying Power Continuously • Major advantages • Helps solve power demands of traditional mag technology • Contributes to better low flow accuracy • 20 year battery life

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