residential metering technologies by ryan fields taud technical conference gatlinburg tn march 2013
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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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residential metering technologies by ryan fields taud technical conference gatlinburg tn march 2013

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

1

today s agenda
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
why the advancements
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
multi jet
Multi-jet
  • Water Uniformly Spread Across Multiple Inlet Ports Flows across an impeller
  • Impeller velocity determines flow rate
  • Register determines volume
multi jet1
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.
multi jet2
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
slide8

Multi-Jet

  • Brands
    • Precision PMM – discontinued March 31, 2012
    • Precision PMX - discontinued
    • MasterMeter
multi jet3
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)
positive displacement
Positive Displacement
  • Two Types
    • Nutating Disc

Neptune

Badger

Hersey

    • Oscillating Piston

Sensus

Elster – No longer produced

Mastermeter

positive displacement nutating disc1
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.
positive displacement nutating disc3
Positive Displacement – Nutating Disc
  • Characteristics
    • Originated in the mid 1800’s
    • Volumetric-type meter
    • Ball and Socket measuring element
positive displacement nutating disc4
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
positive displacement oscillating piston3
Positive Displacement – Oscillating Piston
  • Characteristics
    • Volumetric-type meter
    • C700
    • Floating piston
    • ¼ - 20 GPM Flow Range (5/8x3/4)
positive displacement oscillating piston4
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
oscillating piston
Oscillating Piston
  • Sensus SR
  • Sensus SRII
  • SensusAccustream
  • MasterMeter MMPD
  • Elster/Amco C700 – No longer producing mechanical meters
floating ball technology
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
floating ball technology1
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
floating ball technology2
Floating Ball Technology
  • Floating Ball Technology
  • Extended flow range
  • Improved accuracy
  • One measuring element
electronic register
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
versatility
Versatility
  • Standard laying lengths
  • Application flexibility
  • Interchangeable measuring chambers
  • Built in strainer and test plug
  • Drop-in chamber
  • Ease of maintenance
benefits
Benefits…
  • Installation versatility
  • Extended flow ranges
  • Excellent return on investment

Information Driven Utilities

solid state meter technology1
Solid State Meter Technology
  • 3 Different Types of Technology
    • Fluidic Oscillator
    • Residential Ultrasonic
    • Residential Magnetic
solid state meter technology2
Solid State Meter Technology
  • Fluidic Oscillator – Elster SM700
solid state meter technology3
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.
solid state fluidic oscillator
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”
solid state meter technology4
Solid State Meter Technology
  • Fluidic Oscillator Technology from Elster Metering – SM700
solid state ultrasonic
Solid State - Ultrasonic
  • Residential Ultrasonic Technology from Badger Meter – E Series
solid state ultrasonic1
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
solid state ultrasonic2
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
solid state ultrasonic3
Solid State - Ultrasonic
  • Typical Ultrasonic Meter Diagram
electro magnetic iperl1
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
electro magnetic iperl2
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
electro magnetic iperl3
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
electro magnetic iperl4
Electro-Magnetic - Iperl
  • Flow Tube – Glass Infused Crystalline Resin
  • Rectangular cross section promotes best physics for measurement accuracy
  • Does not promote scale formation
  • Minimizes swirling and turbulence as water enters flow tube
  • Increases water velocity which helps in detecting ultra low flows
  • Can withstand high pressure (200 psi)
  • Maintains dimensional stability in extreme temperatures (-30 F – 160 F)
features
Features
  • 9 digit field programmable display
  • Sealed, glass encapsulated electronic register
  • Built-in strainer

Sealed Electronic Register

Magnetic Flow Sensors

Flowtube

Strainer

slide54

Intelligent Alarms

  • Alarms to monitor the application as well as the health of the iPERL

Available for reporting:

  • Can detect
    • Reverse flow
    • Tamper
    • Empty pipe
    • Leak
  • Lifetime alarms
    • 6 month
    • 1 month
    • Battery failure
  • Condition monitoring alarms
    • High temperature
    • Low field
    • High current
    • Glide slope
    • ADC failure
    • Touchread failure
    • EMF range
slide55

Condition Monitoring Alarms

  • High Temperature  
    • Exposure to environmental temperature outside its design range (-30°F to160°F) for more than 15 minutes
  • Low Field
    • Issue with the magnetics
  •  High Current
    • Magnetic drive coil consumes too much power
  • Glide Slope
    • Issue with the battery achieving full life of 20 years
  • TouchRead Failure
    • Failure of the touchcouple
  • EMF Range
    • Electrodes have been badly damaged
alarm history and datalog
Alarm History and Datalog
  • All alarm conditions may be logged
    • Records time of event
    • Records complete state of device when event occurred
  • Datalog
    • Interval (configurable) data can be stored
      • Peak flow in interval
      • Volume in interval
    • Capacity for ~5000 data points
      • 49 days at 15 minute intervals
      • 12 years at 24 hour intervals
head loss curve
Head Loss Curve

Typical PD Meter

iPERL

electro magnetic iperl5
Electro-Magnetic - Iperl
  • Sensus Video
    • http://link.brightcove.com/services/player/bcpid808497992001?bckey=AQ~~,AAAAu-frDtE~,LkcoCtFGV5jS4A5r9w-AocR7zhpCG_4Z&bclid=0&bctid=812738342001
electronic register1
Electronic Register
  • Available on SRII and accuSTREAM meters
    • All orders for encoded accuSTREAMs beginning February 2013
    • Option on SRII
      • ICE-Opto registers will no longer be available after February 2014
    • Not tested with multi-read devices
  • Features
    • 9 digit display (9th digit is leak indicator)
    • Rate of flow
    • AMR/AMI capability (Register ID and AMR digits)
    • Plastic bonnet with removable register (tamper-resistant set-screw)
    • Register bonnet is rotatable up to 270°
    • 0.96” shorter than ICE-Opto register
  • Warranty
    • 20 year (10 full / 10 pro-rated)
conclusion
Conclusion
  • 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
slide64

For more information, please refer to the

AWWA M6 Manual

or

Contact Ryan Fields, CI Thornburg

(865) 360 - 0346

(252) 902 - 5410

[email protected]

Thank you!

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