Measuring Ac Voltage And Ac Current - D'Amore Engineering AMM-1 Owner's Manual

Measuring AC Voltage and AC Current

The AMM-1 can perform True RMS reading of AC
Voltage via the probes and True RMS reading of AC
Current via the current transducer mounted within the
AMM-1. It can also make these reading simultaneously,
a necessity for any tool that measures true power and
power factor.
To measure an AC Voltage:
1. Power on the AMM-1 by pressing the ON button
2. Unit will power up, display internal battery condition,
and then land on the DC Voltage Screen.
3. Press the MODE button twice to get to the AC Volts
& AC Amps screen.
4. Connect the probes to the banana jack inputs.
5. Connect the other end of the probes AC Voltage of
interest.
6. Reading will be displayed on AMM-1
To measure an AC Current:
1. Power on the AMM-1 by pressing the ON button
2. Unit will power up, display internal battery condition,
and then land on the DC Voltage Screen.
3. Press the MODE button twice to get to the AC Volts
& AC Amps screen.
4. Shut off AC current source (amplifier for instance)
5. Disconnect one of the wires from the load of interest
(amplifier output for instance)
6. Run the wire through the hole on the center of the
AMM-1, and reconnect the wire to the load.
7. Power up AC current source (amplifier) and apply a
signal.
8. The AMM-1 will display the RMS Current reading on
the screen.
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