INTRODUCTION

Do you remember the difference between AC and DC? Hint: AC alternates back and forth and DC flows in one direction.

We're going to learn how to measure DC voltage with a multimeter. Pay attention, though, because the difference between AC and DC current means that measuring for DC will be a little different than measuring for AC.

Just as with measuring AC voltage, knowing how to measure for DC voltage will help you troubleshoot systems and will help you stay safe on the job.

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OBJECTIVES

Learn safety procedures
Learn how to use a multimeter
Learn how to measure for DC voltage

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MATERIALS + TROUBLESHOOTING REFERENCE PAGES

Materials Needed for this Lab

Multimeter
Basic Electrical Trainer

Troubleshooting Reference Pages

Lockout Tagout
2-Way Switch
Fan
Power Supply
Single-pole Breaker
Wire
Wire Colors

Note: Keep this circuit wired up for the rest of module 1.

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TROUBLESHOOTING VIDEOS

No new components during this lab. Use the links above for reference.

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HOW TO CORRECTLY MEASURE DC VOLTAGE

Watch the following video. It demonstrates the correct way to take DC measurements.

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LAB INSTRUCTIONS

Watch the example video, and then perform the lab and answer the quiz question.

Lab Instructions

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SUBMISSION

Answer the quiz question.