I purchased an A/C Ammeter with a 50 amp scale and a donut. I installed the donut around the 2 heavy conductors bringing in the 50 amp 220 volt power and ran the 2 thin wires from the donut to the 2 terminals on the ammeter. Nothing is showing on the ammeter.
Question 1 - should only 1 wire of the 220 volts be going thru the donut?
Question 2 - is the polarity of the 2 thin wires to the meter a consideration?
Waht else should I be looking for to get this working.
Question 1 - should only 1 wire of the 220 volts be going thru the donut?
Question 2 - is the polarity of the 2 thin wires to the meter a consideration?
Waht else should I be looking for to get this working.