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From Pipeline to Pixel. CPAC / NeSSI Workshop 6 May, 2004 Ringmaster: Jeff Gunnell ExxonMobil Chemical Company. What are our objectives when we design an analyser system?. Get a sample out of the process and into contact with an analyser Make a measurement and check that the result is valid

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From pipeline to pixel

From Pipeline to Pixel

CPAC / NeSSI Workshop

6 May, 2004

Ringmaster: Jeff Gunnell

ExxonMobil Chemical Company


What are our objectives when we design an analyser system

What are our objectives when we design an analyser system?

  • Get a sample out of the process and into contact with an analyser

  • Make a measurement and check that the result is valid

  • Send the result to the DCS

  • Facilitate maintenance


What constraints are we designing to

What constraints are we designing to?

  • Cost of build

  • Cost ownership

  • Value added


What are the technologies which we can use

What are the technologies which we can use?

  • NeSSI

  • CoNNI

  • AppI


Pipeline to pixel objectives for today

Pipeline to Pixel: objectives for today

  • How to design a NeSSI sample system?

  • How to connect up the measurement domain?

  • How to get data through to the DCS?

  • How to maintain the system?


Using the doe schematic as an example

Using the DoE schematic as an example

  • Look at the design of the sample system

    • Celerity, CIRCOR, Parker, Swagelok

  • Select transducers and components

    • CPAC web-tool

  • Review SAM and the measurement domain

    • Honeywell

  • Learn about OPC as a connectivity mechanism

    • Matricon

  • Consider how to make maintenance easy

    • Antelope


The doe schematic

The DOE schematic

  • 2 process streams, zero and span

  • Liquid or vapour process samples

  • GC or other analysers

  • Quite a few sample controllers and sensors

  • Hazardous area

  • Heaters for substrate and enclosure

    CLICK FOR SCHEMATIC


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