Using a Digital Multimeter

Digital Electronics

Unit 1 - Fundamentals

Multimeters

This Lesson:

• About a multimeter

• Multimeter Components

• Making correct Connections

• Taking simple Measurements

What is a Multimeter?A Multimeter is a:

Voltmeter – measures potential difference (voltage) between 2 points

Ammeter – measures current

Ohmmeter – measures resistance

Plus: Other instruments to measure: Continuity, capacitance, diodes, etc

Multimeters – ON/OFF

Multimeters – Continuity Tester

Multimeters – Voltmeter

Multimeters – Ohmmeter

Multimeters - Ammeter

Multimeters – Transistor Tester

Multimeters – Diode Tester

Multimeters – Battery Tester

Multimeters – Capacitor Tester

Multimeters – Black Lead

Connecting Black Lead

Multimeters – Red Lead

Connecting Red Lead

Multimeter - Kelvin

Continuity Setting

Breadboard Worksheet

Click Here to Open the worksheet

Professional Development LessonID Code: 4006

Resistor placement

Can Not Be PoweredCan Not Be PoweredOrOr

Part Of An Active CircuitPart Of An Active Circuit

Connecting Leads

Ω

Resistance Settings

Resistor placement 330 Ω

10k Ω

The Test Circuit

Voltmeter Settings

Test Points for Voltmeter

Ammeter Settings

Test Points for Ammeter

Ammeter or Voltmeter?

Curriculum Alignment:

Unit 1 - Fundamentals

Lesson 1.4 – Resistance

Act. 1.4A – Resistors

Lesson PowerPoint – Digital Multimeter

References:

Scherz, P. (2000). Practical Electronics for Inventors, New York, NY: McGraw- Hill.

Credits:Writer: Donna E. Scribner

Content Editor: Tom White

Narration: Donna E. Scribner

PLTW Editor: Ed Hughes

Production: CJ Amarosa

Video Production: CJ Amarosa

Audio: CJ Amarosa

Project Manager: Donna E. Scribner