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Summary

A multimeter is an instrument that measures electrical properties such as voltage, current, and resistance. In substations, multimeters are commonly used for testing circuits, making adjustments, and performing many kinds of troubleshooting tasks. This 37-minute DVD explains how to set up, use, and read a multimeter in a variety of substation activities.

• Multimeter Basics – 5 minutes
  Identifies and describes the two basic types of multimeters, and identifies their main components. Identifies several features that are commonly found on a digital multimeter.
  
• Reading a Multimeter – 6 minutes
  How to read a digital multimeter. How to read an analog multimeter.
  
• Using a Multimeter – 7 minutes
  Describes general safety precautions associated with using a multimeter in a substation. Shows how to set up a multimeter. Describes how to use a multimeter, and how to put a multimeter away.
  
• Substation Applications, Part 1 – 9 minutes
  Describes how a multimeter can be used to adjust a variable resistor. Shows how a multimeter can be used to check continuity, and to verify a circuit.
  
• Substation Applications, Part 2 – 10 minutes
  Describes how a multimeter can be used in troubleshooting a communication circuit. How to use a multimeter to troubleshoot a DC control circuit. How to use a multimeter to adjust a current transducer.

Support Materials Available

Student workbook, instructor guide.