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