Test with a multimeter

AC source (12 V~ 50 Hz adapter / signal generator)

Now: Output on the V~ range

ON CircuVanta 6000 counts · auto range DCAUTO•)))HOLDFUSE− HOLD LIGHT OFFV⎓V~Ω•)))FmA⎓ mA400 mACOMVΩ Reference direction p 1 p Return n 2 n
Pin 1: Reference direction p (p) Pin 2: Return n (n)

Red probe Not connectedBlack probe Not connected

Hold the probe and drag it to the tip of a leg. Tapping works too: first pick the probe, then the leg.

Set the range to AC voltage.

Measure step by step

This guide only measures a low-voltage, isolated AC output (12 V~ adapter or signal generator). AC voltage is read as RMS on the V~ range; it has no direction, so probe placement does not matter. The V⎓ range shows the average of a sine wave, which is about zero.

This app does not measure mains voltage. Never put a probe into a wall socket; measure only isolated low-voltage outputs.

  1. 1Output on the V~ range
  2. 2AC output on the V⎓ range