Electrical Noise Effects on Instrumentation Control Equipment (TI21)


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.


"This class was great. I have a much better handle on the subject of grounding and noise. Keep up the good work."  ~Newell Collins, Technical Specialist-Instrumentation

This course provides an understanding of electrical grounding from an electrical and instrumentation loop relationship. It also covers grounding for personnel/equipment protection as well as for electrical noise. Signal wiring and noise reduction methods are also presented. The material assumes the student has a basic understanding of electrical principles and signal wiring. The National Electrical Code (NEC) is referenced throughout the course.

You will be able to:

  • Discuss the relationship between earth ground to electricity and electrical shock
  • Explain why some electrical systems are connected to earth ground
  • Use the National Electric Code (NEC) as standard for grounding instrument systems
  • Illustrate how people become part of an electrical circuit and how to avoid it
  • Define what a ground loop is
  • Compare noise and interference and how they are transmitted
  • Identify instrument signal wiring and conductors
  • Use methods to reduce instrument noise
  • Identify the effects of harmonics on power systems\\, control systems\\, and computers

You will cover:

  • Grounding: NEC Definitions | Requirements | Grounding vs. Grounded Conductor | What are Earth and Isolated Grounds? | Bonding Requirements | Grounding Methods | Ground Loops | Lightning Affects on Electrical Systems and Grounding Systems and How to Help Protect Devices | Electrical Shock
  • Electrical Noise: Noise vs. Interference | Radiated, Capacitive or Inductive Coupled, or Conducted Noise | Identifying the Source, the Path, and the Target of the Noise So It Can Be Controlled | Types and Paths of Signal Wiring | Ground Loop Generated
  • Powering Sensitive Equipment: Power Quality | Voltage and Current Disturbance Wave Forms | Surge Protection Devices and Characteristics | Power Conditioners | UPS | Circuit and Equipment Affects of VFD/non-Linear Power Supply Harmonics 

Classroom/Laboratory Exercises:

  • Review the effects of various levels of electrical current flowing through the human body
  • Use a circuit tester to understand how a GFCI works by checking circuits for improperly terminated leads
  • Measure harmonic voltage distortion using a digital power analyzer

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.

For more information:
Contact us at +1 919-549-8411 or info@isa.org to start your company on the path to well-trained employees.