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Process Measurement Fundamentals

How the plant senses itself: pressure, level, flow and temperature measurement principles, transmitters and the 4-20 mA convention, ranging and calibration, measurement quality, and the installation details that quietly decide whether a reading can be trusted.

53m
Total time
4
Competency levels
12
Lessons

What you'll learn

  • Explain the measurement chain from primary element through transmitter to the control system
  • Describe qualitatively how pressure, level, flow and temperature are measured, and distinguish gauge, absolute and differential pressure
  • Select a plausible flow and level technology for a given service and justify the choice
  • Interpret the 4-20 mA convention, live zero and the relationship between range, zero and span
  • Distinguish accuracy, precision and repeatability, and say why each matters to a decision
  • Recognise installation effects — impulse lines, straight runs, thermowells — and the diagnostics smart transmitters add

Curriculum

Progress through each competency level in order.

1

Awareness

  • The Big Four Measurements and the Measurement Chain
    Knowledge
    3m
  • Transmitters and the 4-20 mA Convention
    Knowledge
    3m
  • Awareness Check: Measurement Basics and the Signal
    Assessment
    7m
2

Knowledge

  • Pressure and Level Measurement
    Knowledge
    3m
  • Flow and Temperature Measurement
    Knowledge
    3m
  • Knowledge Check: Measuring the Big Four
    Assessment
    8m
3

Skill

  • Range, Zero and Span, Calibration and Measurement Quality
    Knowledge
    3m
  • Assignment: Document and Sanity-Check One Measurement Loop
    Assignment
    3m
  • Skill Check: Ranging, Calibration and Trusting a Reading
    Assessment
    7m
4

Mastery

  • Installation Effects and Smart Transmitters
    Knowledge
    3m
  • Assignment: Investigate a Suspect Measurement End to End
    Assignment
    3m
  • Mastery Assessment: Judging Whether a Measurement Can Be Trusted
    Assessment
    7m

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