Sep 20, 2026  
2026-2027 Catalog 
    
2026-2027 Catalog

EECT 238 - Process Instrumentation


PREREQUISITES: EECT 121 - Electronics Circuit Analysis 
PROGRAM: Electronics and Computer Technology
CREDIT HOURS MIN: 3
LECTURE HOURS MIN: 2
LAB HOURS MIN: 2
DATE OF LAST REVISION: Spring, 2019

Presents the concepts and fundamentals of measurement instrumentation and its application to industrial process control. Introduces basic device symbols and instrumentation terminology. Includes measurement principles and techniques involving temperature, pressure, flow, level, displacement, strain, load, torque, vibration, humidity, density/specific gravity, gas analysis, and conductivity. Discusses open versus closed loop control and the application of combinations of proportional, integral, and derivative control methods. Includes chart recorders, data transmission methods, transmitters and displays. Emphasizes troubleshooting of the complete process control system.

MAJOR COURSE LEARNING OBJECTIVES: Upon successful completion of this course, the student will be expected to:

  1. Document the role of instrumentation in process control.
  2. Apply basic electrical theory to analyze process control instrumentation systems.
  3. Correctly use instrumentation terminology.
  4. Identify the basic device symbols used in instrumentation process control diagrams.
  5. Define the three basic classifications generally used in the United States to identify hazardous areas.
  6. Define temperature and convert between different units of temperature measurement.
  7. Analyze temperature measurement systems which use type J, K, S, and T type thermocouples, RTD’s thermistors, infrared sensing devices, and other thermal sensors.
  8. Define pressure and the different types of pressure measurements and understand pressure measurement systems involving manometers, bubblers, bellows, diaphragms, Bourdon tubes, and other pressure transducers.
  9. Define flow principles (relating to differential pressures, orifice plates, venturis, pitot tubes, and rotameters) and understand flow measurement systems involving magnetic, turbine and ultrasonic type flowmeters.
  10. Define level measurement and understand level measurement systems involving float, capacitive, conductive, and ultrasonic level sensing devices.
  11. Define displacement and understand devices used for measurement.
  12. Define mechanical strain and understand strain gauges used for measurement.
  13. Define load measurement and understand instruments used for measurement.
  14. Define torque and understand how it is measured.
  15. Define mechanical vibration and resonance and understand the devices used to measure these physical properties.
  16. Understand analytical and measurement sensors/systems involving the measure of density/specific gravity, humidity, gases, and the conductivity analysis of liquids.
  17. Describe the difference between open loop and closed loop control systems.
  18. Define proportional, integral, and derivative process control methods.
  19. Interpret process control schemes and their calibration and limitations when using combinations of proportional, integral, and derivative control.
  20. Demonstrate measurement recording devices including chart recorders.
  21. Demonstrate the operation and calibration of transmitters and associated displays (some programmable) used to convert sensor outputs to the appropriate format for data transmission and displaying the measured values at either local or remote locations.
  22. Describe methods of data transmission including analog current, analog voltage, digital, pneumatics, and fiber optics.
  23. Analyze and/or troubleshoot signal transmission systems involving current loops, analog voltage transmission, digital signal transmission, pneumatic systems, and chart recorders with emphasis on 4-20mA current loops interfaced with PLCs.
  24. roubleshoot the instrumentation/transmission/control system and determine if the fault is in the sensor, transmitter device, transmission systems, or controller.


COURSE CONTENT: Topical areas of study include -
  • Basic Device Symbols
  • Temperature and Heat
  • Pressure Principles
  • Flow Principles
  • Level Measurement Systems
  • Strain Measurement Systems
  • Torque Measurement Systems
  • Humidity Measurement
  • Gas Analysis Measurement
  • Open and Closed Loop Control
  • Integral Control Methods
  • Combinations of P, I, and D
  • Transmitters and Displays
  • Circuit Fabrication
  • Circuit Troubleshooting
  • Instrumentation Terminology
  • Temperature Measurement Systems
  • Pressure Measurement Systems
  • Flow Measurement Systems
  • Displacement Measurement Systems
  • Load Measurement Systems
  • Vibration and Resonance Measurement
  • Density/Specific Gravity Measurement
  • Liquid Conductivity Measurement
  • Proportional Control Methods
  • Derivative Control Methods
  • Chart Recorders
  • Data Transmission
  • Circuit Measurements
  • System Troubleshooting

Course Addendum - Syllabus (Click to expand)