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


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


Sensus r2 omni floating ball technology

Sensus R2 Omni Floating Ball Technology

24


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


Floating ball register amr
Floating Ball – Register - AMR


Floating ball register total
Floating Ball – Register - Total




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


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


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 registers
Electronic Registers



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



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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