1.
How to use a multimeter
8. December 2021 (CC BY-SA 4.0)
Beginners Workshop
Jens Chr Brynildsen (@jensa)

2.
• What is a multimeter?
• Different kinds of multimeters
• How do I measure
• Resistance
• Continuity
• Volts (DC and AC)
• Amperes
• Diodes
• What multimeter to buy?
Plan for the
evening
Image by Adafruit (CC BY-SA 2.0)

3.
What is a multimeter?

4.
Can read out the values of components
Can measure the flow of electricity in a circuit
Can measure strength and amount of power
Measures the properties of electrical circuits
Image by ohmify.com, Øyvind Dahl

5.
Different kinds of multimeters

6.
Form factor, cost, capabilities, precision
Images by Adafruit (CC BY-SA 2.0)

7.
Cost

8.
Cost

9.
Capabilities

10.
Capabilities

11.
Precision

12.
Precision

13.
How do I measure?

14.
Connecting
the
probes

15.
Turning the dial

16.
Manual meters

17.
Continuity ( )
Image by Adafruit (CC BY-SA 3.0)

18.
Resistance (Ohm)
Image by Adafruit (CC BY-SA 3.0)

19.
Resistance (Ohm)
Image by Adafruit (CC BY-SA 3.0)

20.
Something to remember

21.
Direct Current (V⎓)
Image by Adafruit (CC BY-SA 3.0)

22.
Alternating Current (V~)
Image by Emilian Robert Vicol (CC BY-SA 3.0)

23.
Amperes
Image by Adafruit (CC BY-SA 3.0)

24.
Diodes

25.
• Fused inputs?
• Capacitance?
• Frequency?
• Temperature?
• Transistors?
More to test?
Image by Dave Jones (CC BY-SA 2.0)

26.
What multimeter to buy?

27.
• What do you want to measure?
• How precisely do you need to
measure?
• Is portability relevant?
• Is price relevant?
What to buy?
Image by Andrew Mason (CC BY-SA 2.0)

28.
• Measures
• Inductance (L)
• Capacitance (C)
• Resistance (R)
• Generally more precise than
multimeters
LCR meter
Image by ZngZng, wikipedia (CC BY-SA 3.0)

29.
Want to learn more?
8. December 2021 (CC BY-SA 4.0)
https://learn.adafruit.com/multimeters/
Jens Chr Brynildsen (@jensa)