View source for Extech X503 Multimeter


==== Measuring voltage: ====

# Connect the black lead of the multimeter to the COM terminal.
# Connect the red lead of the multimeter to the V/Ω terminal.
# Set the multimeter to the DC voltage setting.
# Connect the black lead to the negative terminal of the circuit and the red lead to the positive terminal of the circuit.
# The multimeter will display the voltage of the circuit.

==== Measuring current: ====

# Connect the black lead of the multimeter to the COM terminal.
# Connect the red lead of the multimeter to the A/Ω terminal.
# Set the multimeter to the DC current setting.
# Connect the multimeter in series with the circuit you want to measure the current of.
# The multimeter will display the current of the circuit.

==== Measuring resistance: ====

# Connect the black lead of the multimeter to the COM terminal.
# Connect the red lead of the multimeter to the V/Ω terminal.
# Set the multimeter to the resistance setting.
# Connect the black lead to one end of the resistor and the red lead to the other end of the resistor.
# The multimeter will display the resistance of the resistor.

==== Measuring continuity: ====

# Connect the black lead of the multimeter to the COM terminal.
# Connect the red lead of the multimeter to the V/Ω terminal.
# Set the multimeter to the continuity setting.
# Touch the black lead to one end of the circuit and the red lead to the other end of the circuit.
# If the circuit is complete, the multimeter will beep.
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