My digital multimeter starts fluctuating while I bring it near to my started bike even if the probes are not connected to any where .I can't read any value during that time.Therefore I cannot check my bike electrical circuit.My multimeter shows correct values when I connect to home ac supply...
Has anyone ever used one of these ZMPT101B current transformers for measuring AC voltage with a microcontroller?
I’m struggling to get any linearity with it at all and I can’t understand why.
Here is what I’m doing:
I’m using a Variac which can produce voltages from 1vac – 330vac