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Measure Today. Ensure Tomorrow.

Ultrasonic Water Meter – The Future for Residential Water Metering. Measure Today. Ensure Tomorrow. Agenda. Mechanical Water Meters Types Performance Limitations Effects of Wear Ultrasonic Water Meters Benefits Technology Applications Questions and Answers.

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Measure Today. Ensure Tomorrow.

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  1. Ultrasonic Water Meter – The Future for Residential Water Metering Measure Today. Ensure Tomorrow.
  2. Agenda Mechanical Water Meters Types Performance Limitations Effects of Wear Ultrasonic Water Meters Benefits Technology Applications Questions and Answers
  3. Mechanical Water Meters Include: Positive Displacement Technology Oscillating Piston Nutating Disc Velocity Technology Multi Jet Single Jet
  4. Nutating Disc Water Meter Picture from Omega Flow and Level Handbook
  5. Oscillating Piston Water Meter Picture from Omega Flow and Level Handbook
  6. Single Jet Water Meter
  7. Multi Jet Water Meter
  8. Benefits of Mechanical Meters Proven Technology Widely Accepted and Trusted in the Industry Technology has Evolved and Improved Over more than 100 Years Several Types Can Be Rebuilt ‐ Extending their Useful Life
  9. Disadvantages of Mechanical Meters Moving parts – Wear and Tear Regular re-calibration is required (5years) Maintenance Is Required Prone to Tamping, i.e., magnetic tampering on register Particulates in Water Can Cause Problems Calcium in Water Can Cause Problems Significant Pressure Loss Correct Sizing is Very Important
  10. Inherent Low Flow Performance Limitations Accuracy Relies on Close Tolerances that are Subject to Wear Accuracy Degrading Over Time The following slides are for Low Flow analysis
  11. ¾” Mechanical Meter Accuracy at Low Flow Source: Apparent Losses Caused By Meter Inaccuracies at Ultralow Flows, Richards et.al, AWWA Journal, June 2010 Poor Low Flow Performance!
  12. Implications for Water Conservation • You Can’t Count What You Can’t Measure • Even the Best AMI System Can’t Detect Leaks Below a Meter’s Lowest Flow Sensitivity • A Leak of 0.05 GPM (1/20th GPM) amounts to 39 Teaspoons, or about 0.8 Cups per Minute • This is Not Just a “Drip” Every Few Minutes
  13. Slow Leak, Big Loss 0.05 GPM is 2,160 Gallons over 30 Days, or 25,920 Gallons per Year from ONE meter • Across 10,000 Meters, this could amount to 259,200,000 Gallons per Year (795 Acre Feet) • How Many Meters Have Leaks at or Below 0.05 GPM? WE DON’T REALLY KNOW BECAUSE THE MECHANICAL METERS CANNOT MEASURE THESE FLOWS – EVEN WHEN NEW!
  14. What We Are Sure • AWWA States That 16% of a Meter’s Usage Occurs at Low Flows (Less Than 1 GPM) • Mechanical Meters Measure Only A Small Percentage of Flow Below 1/4 GPM – Even When New • [Unmeasured Flow] Results in Significant Revenue Loss for the Utility Source: Apparent Losses Caused By Meter Inaccuracies at Ultralow Flows, Richards et.al, AWWA Journal, June 2010
  15. Sources of Non‐Revenue Water AWWA Standard Water Balance
  16. Apparent Losses From Meters Based on test studies of anonymous water utilities, typical average customer meter under registration is about 5 to 6 percent. Graph Source: Apparent Losses Caused By Meter Inaccuracies at Ultralow Flows, Richards et.al, AWWA Journal, June 2010
  17. Apparent Losses From Meters Based on test studies of anonymous water utilities, typical average customer meter under registration is about 5 to 6 percent. Graph Source: Apparent Losses Caused By Meter Inaccuracies at Ultralow Flows, Richards et.al, AWWA Journal, June 2010
  18. Agenda Mechanical Water Meters Types Performance Limitations Effects of Wear Ultrasonic Water Meters Benefits Technology Applications Questions and Answers
  19. How Does Ultrasonic Water Meter Work - Based on Transit-time Technology This technology is similar to the following: The boat traveling against flow takes longer time to reach to its opposite bank than the one travels along the flow. Travel time difference is directly related to river flow velocity.
  20. To measure flow in a pipe, a pair of ultrasonic transducers are installed: D Each transducer sends a sound pulse towards the other. The pulse traveling downstream takes less time than the one travelling upstream. The travel time difference of the two pulses are proportional to the flowrate: Q ~ Tup-Tdn
  21. For Small Size Pipe: Reflector-Based Sensor for High Sensitivity V > 0 With flow, red pulse travels faster than green pulse, thus, takes less time to complete the trip. The travel time difference is proportional to flowrare
  22. Patented Sensor design boosts system performance: Convex reflector surface reduces risk of particle deposition. Internal design absorbs multi-mode reflection. Pure/strong signal is obtained. Guarantees increased accuracy and stability.
  23. Smart Digital NSF61-G approved Cutting-Edge Technology Designed for the Future

    ULTRASONIC COLD WATER METER

    Idea for submetering No moving parts to wear and tear. Maintenance-free. No annual calibration required. Tamper-proof design.
  24. Smart Digital NSF61-G approved Cutting-Edge Technology Designed for the Future

    ULTRASONIC COLD WATER METER

    Idea for residential metering No moving parts to wear and tear. Maintenance-free. No annual calibration required. Tamper-proof design.
  25. Leakage Detection In Residential Property Each domestic meter is able to detect small water leakage. When leakage is detected, water meter sends alarm to data center promptly. Spire’s Ultrasonic Water Meter is designed for this! Count each drop
  26. More ADVANTAGES … Wide dynamic range Pipe burst detection and alarm A lifetime of accuracy so the tenant pays for what they consumes. T Low pressure drop. Saves pumping cost. Smart interface ready for automatic meter reading (AMR/AMI)
  27. Comparison – ¾” Meter Accuracy at Low Flow Graph Source: Apparent Losses Caused By Meter Inaccuracies at Ultralow Flows, Richards et.al, AWWA Journal, June 2010 Ultrasonic Water Meter Offers High Accuracy Over Wide Range, Even at Low Flow!
  28. Comparison – ¾” Meter Accuracy at Full Range
  29. Comparison – ¾” Linearity
  30. Comparison – Dynamic Range In fact, ultrasonic water meter has much larger dynamic range than shown in its spec.
  31. Comparison – Longevity Ultrasonic Water Meter Is Accurate Even 20 Years Later!
  32. Ultrasonic Water Meter Can Detect Small Leakage!

    LEAKAGE DETECTION

  33. Utah Water Research Laboratory Study “Reduction of apparent losses caused by meter inaccuracies at low flows can result in substantial increases in revenue for a utility.” “Additionally, increased meter accuracy will allow for more equitable billing of customers.” Richards, Johnson and Barfuss; Utah Water Research Laboratory
  34. Conservation and Revenue Ultrasonic Technology Offers a Win‐Win for Utilities, Consumers, and the Environment. They Can Reduce Apparent Losses From Meters, Allowing Utilities to Bill for More of the Water Actually Delivered They Can Help Eliminate the Smallest Leaks They Can Pay for Themselves in a Few Years They Deliver More Information Than Ever Before Environmentally Friendly Composition
  35. Conservation and Revenue Ultrasonic Technology Offers a Win‐Win for Utilities, Consumers, and the Environment. They Can Reduce Apparent Losses From Meters, Allowing Utilities to Bill for More of the Water Actually Delivered They Can Help Eliminate the Smallest Leaks They Can Pay for Themselves in a Few Years They Deliver More Information Than Ever Before Environmentally Friendly Composition
  36. AMR/AMI Ready Ultrasonic Water Meter Has Built-in AMR/AMI Feature. Easy for AMR/AMI Integration.
  37. Conclusions Mechanical Meters Are Still a Viable Solution – They Have Served Us Well for Over 100 Years New Technologies Available Today Offer Compelling Financial and Ecological Benefits They Compliment AMI System Deployments but Offer Many Benefits Independent of AMI Utilities Should Explore and Understand the Potential of These Meter Technologies
  38. Agenda Mechanical Water Meters Types Performance Limitations Effects of Wear Ultrasonic Water Meters Benefits Technology Applications Questions and Answers
  39. THANK YOU! Massachusetts, USA www.SpireMT.com … A Global Leader in Flow & Energy Management Solutions …
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