How to measure small current with clamp ammeter
Regarding the method of measuring small current with a clamp-type ammeter, the clamp-type ammeter is often used to measure the motor current. When the clamp-type ammeter measures a small current, how to avoid the error exceeding the allowable value range, and share a method for your reference.
Clamp ammeter to measure small current
Usually, a clamp-type ammeter is used to measure the motor current, and a meter with a range of several hundred amperes is used. If the current that is much smaller than the full-scale value of the clamp-type ammeter is to be measured, the error far exceeds the allowable value range.
A method of measuring small current with a clamp meter:
In order to ensure the accuracy of the measurement, when measuring a small current, first wind the wire of the circuit under test a few times, and then put it into the jaw of the clamp meter for measurement.
At this time, the current value indicated by the clamp meter is not the actual value to be measured. The actual current value should be the reading of the clamp meter divided by the number of turns of the wire
