instrumentation - Control System Instrumentation 1 2 3 4...

Info icon This preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
Control System Instrumentation 1. Introduction 2. Sensors, transmitters and transducers 3. Control valves 4. Measurement accuracy
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Introduction Stirred tank heating system » Measured liquid temperature with thermocouple » Transmit signal to controller » Perform control calculation » Send controller output to electrical heater Process control system components » Sensor – measures controlled output » Transmitter – transmits measurement signal » Controller – processes measurement signal » Final control element – imparts control action
Image of page 2
Control System/Process Interface
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Sensors, Transmitter and Transducers Sensor » Produces a physical response related to the process variable » Thermocouple: temperature millivolt signal Transmitter » Converts sensor signal to a signal appropriate for the controller » Temperature transmitter: millivolt signal voltage signal Transducer » Converts signal from one form to another form » I/P converter: current signal pneumatic signal Standard ranges » Analog: 4-20 milliamp, 1-5 volts » Pneumatic: 3-15 psig
Image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern