Sensor Performance and Reliability (SP20P)


Length: 2 days
CEU Credits: 1.4
Course Hours: 8:00 a.m.-4:00 p.m.
Certification of Completion: A Certificate of Completion indicating the total number of CEUs earned will be provided upon successful completion of the course.


The objective of this course is to teach new techniques that can be used passively and while the process is operating to verify the performance of process instrumentation, access the reliability of process instrumentation, and provide in-situ/on-line instrumentation diagnostics. This course presents methods you can use to reduce I&C maintenance costs, increase plant output and safety, deal with I&C aging and obsolescence, and provide for plant life extension. The material is practical in nature and immediately useable in a variety of operating processes.

This course and its related contents are pertinent to plant management and technical personnel, including technicians, engineers, superintendents, supervisors, safety and regulatory staff, training managers, and other individuals who are concerned with process instrumentation, maintenance, aging and obsolescence management, efficiency improvements, cost reduction, and plant life extension issues. The course is also beneficial to academic personnel (professors, students, researchers) who deal with instrumentation issues, temperature and pressure measurements, automated testing, process diagnostics; and to research and development engineers and scientists from national and international laboratories and other engineering and science organizations.

You will be able to:

  • Identify process instrumentation problems and solutions
  • Improve the accuracy and reliability of your temperature and pressure measurements
  • Use in-situ methods to verify the steady state and transit performance of temperature and pressure sensors
  • Assess aging status of process sensors
  • Identify what problems to guard against in making measurements with industrial temperature and pressure instrumentation and associated components
  • Establish the accuracy of industrial temperature and pressure measurements
  • Measure the response time of temperature and pressure sensors and identifying problems, such as blockages and voids in pressure sensing lines, and/or inadequate insertion of temperature sensors in their thermowells
  • Implement diagnostics of process instrumentation channels (i.e., means to test the sensors, the cables, and the rest of a channel)
  • Analyze state-of-the-art industrial temperature and pressure measurements and identify what is on the horizon

You will cover:

  • Introduction: Process Instrumentation | Temperature Sensor Problems | Pressure Sensor Problems | Sensing Line Problems | Cable Problems
  • Physical Characteristics of Industrial RTDs: Construction Details | Direct-Immersion and Thermowell-Mounted RTDs | Fast Response RTDs | RTD Instrumentation
  • Physical Characteristics of Thermocouples: Principles of Operation | Thermocouple Junction Styles | Standardized Thermocouples | Thermocouple Extension Wires | Colors of Thermocouple Extension Wires | Reference Junction Compensation | Thermocouple E-T Curve | Seebeck Theory and Thermocouple Circuit Analysis
  • Physical Characteristics of Pressure Sensors: Principle of Operation | Elastic Sensing Elements | Displacement Sensors for Pressure Measurement | Pressure Transmission | Sealed Pressure Sensing Systems | Pressure Damping Systems
  • Temperature and Pressure Sensors: Accuracy | Calibration Traceability
  • Fundamentals of Dynamic Response: Dynamic Response of a Simple System | Characteristics of First-Order Systems | Definition of Time Constant | Response of Higher-Order Systems
  • Measurement of Response Time of Temperature and Pressure Sensors: Laboratory Methods | In-Situ Methods
  • Pressure Sensing Line Problems and Solutions: Effect of Voids, Blockages, Freezing, and Leaks on Dynamic Response of Pressure Sensing Systems | In-Situ Detection of Sensing Line Problems | How the Diameter, Length, and other Characteristics of Sensing Lines Affect the Performance of Pressure, Level, and Flow Transmitters
  • In-Situ Methods to Verify the Calibration of Process Instruments
  • In-Situ Testing of Cables
  • In-Situ Diagnostics of Temperature Sensors: Verifying the Attachment of Sensors to Solid Surfaces | Detecting Secondary Junction in Thermocouples | Detecting Cross-Connected Thermocouples | Verifying Adequate Sensor Insertion in a Thermowell | Separating Sensor Problems from Cable Problems | Verifying Water Level in Pipes or Vessels | Detection of Gross Inhomogeneties in Thermocouples

Recommended Resources: Sensor Performance and Reliability

Not Sure this particular course is for you?
pre-instructional survey is available for you to evaluate your level of understanding of the course material and to show you the types of questions you'll be able to answer after completing the course.


Related Files

Pre-Instructional Survey (Adobe PDF File)