Test with a multimeter
AC source (12 V~ 50 Hz adapter / signal generator)
Now: Output on the V~ range
Pin 1: Reference direction p (p) Pin 2: Return n (n)
Red probe Not connectedBlack probe Not connected
LED litHold the probe and drag it to the tip of a leg. Tapping works too: first pick the probe, then the leg.
· beep
Set the range to AC voltage.
Measurement taken while pressed is saved. You can go to the next step.
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.
- 1Output on the V~ range
- 2AC output on the V⎓ range