new compact low-flow measurement and control technologies

New Compact Low-Flow New Compact Low-Flow Measurement and Measurement and Control TechnologiesControl TechnologiesStephen P. Glaudel

[File Name or Event]Emerson Confidential27-Jun-01, Slide 2

12 January 2004 IFPAC/NeSSI

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AgendaAgendaAgendaAgenda

Traditional Instrumentation Packaging Analytical needs (small size) - SP76 Flow-Measurement Technology Choices

– Variable-Area (VA), Thermal-Mass (TMF), Coriolis, etc. Meter-only vs. Integral-Control / Valve ? Multivariable:

– Flow (mass, volume), Density, Pressure, Temperature, … Communications:

– Limitations of Analog I/O – Many Networks, Many Choices



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SP76 Industrial Downport SubstratesSP76 Industrial Downport SubstratesSP76 Industrial Downport SubstratesSP76 Industrial Downport Substrates



4Company Confidential

SP76 Industrial DownportsSP76 Industrial DownportsThermal-Mass and VA meters & controllersThermal-Mass and VA meters & controllersSP76 Industrial DownportsSP76 Industrial DownportsThermal-Mass and VA meters & controllersThermal-Mass and VA meters & controllers

Thermal Mass Flow(Gas or Liquid)

Flow k * Cp * Temp

Coriolis Mass Flow(Gas or Liquid)

Flow = k * Phase

Mass Flow Measurement and ControlMass Flow Measurement and Control

True Mass Measurement(plus Density)

Relative Immunity to: Fluid variations



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Coriolis and Thermal are Complementary Coriolis and Thermal are Complementary in Many Customers’ Gas Applicationsin Many Customers’ Gas ApplicationsCoriolis and Thermal are Complementary Coriolis and Thermal are Complementary in Many Customers’ Gas Applicationsin Many Customers’ Gas Applications

Molecular Weight

“Su

itab

ilit

y”

N2

(28)

He(4)

C4F8(200)

Cl2

(71)

Complex Halocarbons and Metalo-

Organics

Light Gas Heavy Gas



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Traditional Coriolis Meter PackagesTraditional Coriolis Meter PackagesTraditional Coriolis Meter PackagesTraditional Coriolis Meter Packages

LabView, Intellution, etc.

SensorsTransmitters

Users



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Small Coriolis Mass Flow SensorSmall Coriolis Mass Flow SensorSmall Coriolis Mass Flow SensorSmall Coriolis Mass Flow Sensor

Drive,Pickoffs,

& DSPElectronics

1.53”3.03”

Enclosure

Coriolis Tube



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Drive,Pickoffs,

& DSPElectronics


1.53”3.03”

Modbus

LabView, Intellution, etc.



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+24Vdc

3 I/Osets

Flow




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PID

Sensor(s) Valve

Only Difference Is The SensorThermal or Coriolis

Common ValveTechnologies

Common Electronics Integration: Packaging,Calibration, Tuning

Synergies Between Coriolis and Synergies Between Coriolis and Thermal Mass ControllersThermal Mass ControllersSynergies Between Coriolis and Synergies Between Coriolis and Thermal Mass ControllersThermal Mass Controllers



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Heat

T1 T2

PID

Coriolis Thermal Coriolis Thermal Coriolis Thermal Coriolis Thermal

Mass-Flow-Control: Mass-Flow-Control: Coriolis and Thermal SolutionsCoriolis and Thermal SolutionsMass-Flow-Control: Mass-Flow-Control: Coriolis and Thermal SolutionsCoriolis and Thermal Solutions

PID

DSP, Drive,Pickoffs



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Low-Flow Coriolis Integrated-Control:Low-Flow Coriolis Integrated-Control:Axial or Downport ConnectionsAxial or Downport ConnectionsLow-Flow Coriolis Integrated-Control:Low-Flow Coriolis Integrated-Control:Axial or Downport ConnectionsAxial or Downport Connections



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Volume vs. Mass FlowVolume vs. Mass FlowLiquid (Good Applications)Liquid (Good Applications)Volume vs. Mass FlowVolume vs. Mass FlowLiquid (Good Applications)Liquid (Good Applications)

3 Different Tube Sizes



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Volume vs. Mass FlowVolume vs. Mass FlowHeavy Gas (Good Applications)Heavy Gas (Good Applications)Volume vs. Mass FlowVolume vs. Mass FlowHeavy Gas (Good Applications)Heavy Gas (Good Applications)



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Volume vs. Mass FlowVolume vs. Mass FlowLight Gas @ Low Pressure (Dubious)Light Gas @ Low Pressure (Dubious)Volume vs. Mass FlowVolume vs. Mass FlowLight Gas @ Low Pressure (Dubious)Light Gas @ Low Pressure (Dubious)

Tube Pressure Drop vs. Flowrate



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Volume vs. Mass FlowVolume vs. Mass FlowLight Gas @ High Pressure (Good)Light Gas @ High Pressure (Good)Volume vs. Mass FlowVolume vs. Mass FlowLight Gas @ High Pressure (Good)Light Gas @ High Pressure (Good)



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Flow Performance Testing, CalibrationFlow Performance Testing, CalibrationFlow Performance Testing, CalibrationFlow Performance Testing, Calibration

Accuracy (%rate vs. F.S.),Turndown, Zero-Stability



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Multivariable InstrumentsMultivariable InstrumentsMultivariable InstrumentsMultivariable Instruments Flowrate (Mass- or Volumetric-) Totalizers Density Temperature Pressure(?) Calculated Values Diagnostics(?) Valve Characteristics Control Tunings…………….

+24Vdc---

4-20mA



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Each Network has its place (design optimum) Speed, Bandwidth Requirements Topology, Distance, Cable Management Power, Intrinsic Safety Mastership/Peer Considerations Scope of Vendors/Devices to be Networked Most Importantly, Market Drivers

There is often no Perfect Selection Many installations may end up with Two Buses

– E.g. FF (Process) and DeviceNet (Discrete)

Selecting ‘Open’ Communication NetworksSelecting ‘Open’ Communication NetworksSelecting ‘Open’ Communication NetworksSelecting ‘Open’ Communication Networks



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Common Themes1. Cost Savings: Installation, Diagnostics, Commissioning, etc.

2. PLC, DCS: ‘System’ issues, Industrial Market pressures

3. Electronic ‘Device Profile’ data (DDL, EDS, GSD…)

4. Conformance Testing, Training, Integration Partners

5. Need for modularly-designed instruments, when comm needs change….

Selecting ‘Open’ Communication NetworksSelecting ‘Open’ Communication NetworksSelecting ‘Open’ Communication NetworksSelecting ‘Open’ Communication Networks



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Questions?Questions?Questions?Questions?



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new compact low-flow measurement and control technologies

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