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Welcome To Instrumentation Boot Camp 101. Your Commandant for the next 5 weeks: J.C.Labelle. Industrial Controls & Process Automation. What is this all about? Can I handle it? Where Can I get Help?. jc.labelle@videotron.ca 514-916-5895 Conval Quebec 514-332-2301.

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Welcome to instrumentation boot camp 101

Welcome To Instrumentation Boot Camp 101

  • YourCommandant for the next 5 weeks:

    J.C.Labelle


Industrial controls process automation
Industrial Controls &Process Automation

  • What is this all about?

  • Can I handle it?

  • Where Can I get Help?


Jc labelle@videotron ca 514 916 5895 conval quebec 514 332 2301
jc.labelle@videotron.ca514-916-5895Conval Quebec 514-332-2301

  • Notes and or comments will posted on my website:

  • WWW.belletek.com


Introduction
Introduction:

Process control and instrumentation companies= 2 Billion $ sales

  • 50,000 jobs in engineering,design as well as sales and technical support in North America









Loop types
Loop types:

  • Open… no feedback to primary element

  • Closed: three compnents

  • S….ense

  • D….ecide

  • A…ct………..the output affects the input!!




Air signals
Air Signals

  • Started turn of the century 0-60 psi

  • Next came 3-27 psi

  • Bailey Controls did 6-30 psi

  • Now standardized at 3-15 psig.


Air is cheap or is it
Air Is cheap!!! Or is it?

  • Filtered to 25 micron or better for instrument grade

  • dryness to -40 F dewpoint

  • capacities!


Costs
Costs:

  • 3-4 times more expensive than electronic instruments

  • expensive networks;maintenance issues

  • primary uses are for pneumatic operated actuation and explosion proof areas

  • Almost impossible to buy pneumatic temperature or flow or pressure transmitters



Did you get all that
Did you get all that???

  • Just remember pneumatics have 3 thousanths of an inch orifices…water and or dirt will destroy it and or plug the lines


Pros and cons
Pros and Cons:

  • P: motive force use I.e: cylinder;actuators

  • C: lag time

  • C:leaks,signal losses

  • C: Low gain;precision

  • C: Expensive to produce


Electrical signals
Electrical Signals:

Voltage or current?

How far?

Precision?

Cost of installation

Maintnenace issues


Electrical signals1
Electrical Signals

  • Voltage used in HVAC =0-10V/1-5v/0-1ma

  • short distances no problem 50 -100 ft

  • voltage picks up sorrounding noise

  • cheap to produce

  • little maintneance


Electrical signals2
Electrical Signals

  • Current signals..10-50MA/0-20madc/0-1ma

  • 4-20ma is the standard

  • 1 kilometre ranges

  • shielded cables (instrument side to ground) other end floats.


Electrical signals3
Electrical Signals

  • All instruments generally use 4-20madc

  • other signals:

  • fiberoptic;hydraulic;cat 5 ;dupline;Devicenet;Profibus;TCP/IP;

  • wireless comm. Not yet proven….!


Questions
Questions???

Not too hard please …I’m tired!!!


Homework
Homework!

  • Using what you know….

  • 3 loop drawings temp/flow/level

  • identify the elements

  • SDA!!

  • CPPA show!!