Understanding 4 to 20 Milliamp Loops

Course Number: IC-1002
Credit: 1 PDH
Subject Matter Expert: Robert J. Scoff, P.E.
Price: $29.95 Purchase using Reward Tokens. Details
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Overview

In Understanding 4 to 20 Milliamp Loops , you'll learn ...

  • What are 4 to 20 milliamp loops?
  • When are 4 to 20 Milliamp loops used?
  • Why are 4 to 20 milliamp used?
  • How are 4 to 20 milliamp used?

Overview

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Credit: 1 PDH

Length: 12 pages

4 to 20 milliamp loops are found in many places in the industrial world. If we work on control circuits, sooner or later we will get a chance to see one. At first glance, they might seem to be confusing and complicated. However, if we really look at what they are and how they are connected, we will see that they are really pretty simple. Thus, the purpose of this course is to help engineers see how simple they really are. Then when you get a chance to either apply them or troubleshoot them, you will easily be able to do your job. Since 4 to 20 milliamp loops are all direct current, no understanding of alternating current with its vectors and phase angles is necessary. The mathematics is simply add, subtract, multiply, and divide. The calculations that are necessary to work this course can be done with a pencil and paper.

This course is designed so that engineers of any discipline can benefit from it. There is very little electrical theory involved. It is more of a practical application of some simple electrical principles. After taking this course, any engineer will be able to work with 4 to 20 milliamp loops, and, if the proper instrumentation is available, calibrate them.

It is the author's intent that the material presented in this course will help the students become better versed in applying and understanding 4 to 20 milliamp current loop controls.

Specific Knowledge or Skill Obtained

This course teaches the following specific knowledge and skills:

  • What are 4 to 20 milliamp loops?
  • When are 4 to 20 Milliamp loops used?
  • Why are 4 to 20 milliamp used?
  • How are 4 to 20 milliamp used?
  • Where are 4 to 20 milliamp loops used?
  • And finally, who uses them?

Certificate of Completion

You will be able to immediately print a certificate of completion after passing a multiple-choice quiz consisting of 20 questions. PDH credits are not awarded until the course is completed and quiz is passed.

Board Acceptance
This course is applicable to professional engineers in:
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PDHengineer Course Preview

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Credit: 1 PDH

Length: 12 pages

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