DIGITAL MULTIMETER

A Must Have

For Dealing With

Electronics

Digital Multimeter

Digital Display

Manual Range setting dial

Probe Connectors

DIGITAL MULTIMETER

AC VoltsDC Volts

Ohms

AC Amps

ANALOG METER

Permanentmagnet

Movablecoil

Core

Spring

Scale marksNeedle

MULTIRANGE ANALOG METER

Reading = ________3.6

Uses for a Multimeter

1) Determine if a part is damaged or worn out

2) Determine if an unexpected amount of power (too much or too little) is being used.

3) Determine what type of part something is

4) Determine the electrical denomination (value) of a part

5) Manually read sensors and chips to aid designing and debugging

MUST HAVE FEATURES

1) Digital Display

2) 3 1/2 Digits

3) DC Voltage Measurement

4) DC Current Measurement

5) Probes or Leads

6) Overload/Fuse Protection

Manual Range Settings

MEASURING VOLTAGE

12.6V+

+

MEASURING CURRENT

1 k

9.0

MEASURING RESISTANCE

Disconnect power

Disconnect oneend of resistor

TESTING FOR CONTINUITY

GOOD

0

ZeroResistance

BLOWNInfinite

Resistance

Now it is your Turn

LABS YOU WILL DOChecking Voltage

Continuity

Resistors

Diode Testing