Measuring low current with a clamp-on tester
QThe target current is very low with respect to the measurement range of my clamp-on tester. Do you have any recommendations as to how to measure such low current accurately?
A
We recommend making some turns of conductor around the clamp sensor before measuring.For example, if the expected current is 1A, 2 turns will result in 2A, which can be better handled by a higher range meter because two current signals will be measured by the clamp. Then simply take 1/2 of the reading to get the actual current of a single wire.