Power Probe IV
www.powerprobe.com · 800-655-3585
AC RMS
mode is for measuring AC (alternating
current) voltages and can be used on any AC voltage or
pulsed waveform signal where an RMS averaged voltage
measurement is required.
Contact the probe tip to the circuit and it will display an
RMS averaged AC voltage reading in the main display
area while also displaying RMS Min/Max AC voltages
on the bottom line.
Powering up and activating circuits with the rocker switch
can not
be performed in this mode.
Pressing the “CLR” button will reset the Min/Max read-
ings.
AC RMS Voltage is used in the same manner as a standard
DVOM would be used to measure the averaged AC volt-
age in any circuit that produces AC voltage. This can be
used for, but not limited to, tests such as checking alternator
diode ripple, abs sensors, crank sensors, etc.
The Power Probe IV can safely measure up to 70 VAC.
WARNING
Do not use the Power Probe IV to test AC line voltage, such as a 120V wall plug. Attempting to use
the Power Probe IV on AC line voltage will damage the probe and could cause personal injury.
Testing and Measuring Operations
AC Voltage Measurement (RMS)
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