Welcome to instrumentation boot camp 101
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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?. [email protected] 514-916-5895 Conval Quebec 514-332-2301.

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Welcome To Instrumentation Boot Camp 101

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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

[email protected] 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


Before we can head towards the storm

Before we can head towards the storm…….


Time to learn a language

Time to learn a Language!!


Basics isa symbology

Basics! ISA Symbology


Welcome to instrumentation boot camp 101

What it Really Means


Welcome to instrumentation boot camp 101

Even more to confuse you


We need a dictionary

We need a dictionary!!


Example

Example:


Loop types

Loop types:

  • Open… no feedback to primary element

  • Closed: three compnents

  • S….ense

  • D….ecide

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


Signal types

Signal Types


Is it break time yet

Is it break time yet????


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


Welcome to instrumentation boot camp 101

Pneumatic Relay:


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!!


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