How to use a clamp multimeter
AC current measurement: When measuring current, select the AC current file, estimate the load current, select the appropriate range, press the wrench, open the jaw, and place the current-carrying wire to be measured in the middle of the through-core current transformer. When there is an alternating current in the measuring wire, the magnetic flux of the alternating current induces a current in the secondary winding of the transformer. If it is automatic range direct measurement on it.
Measure AC voltage: select the AC voltage gear, and connect the test leads in parallel to the position to be measured.
Measure the DC current: select the DC current file, connect the red pen to the positive, the black pen to the negative, and connect the test leads to the circuit in series.
Notice:
1. Do not use the jaws, where only AC current can be measured.
2. Pay attention to the positive and negative poles of DC.
Measure DC voltage: select the DC voltage gear, and connect the test leads in parallel to the position to be measured. Note that the positive and negative poles of DC are not wrongly connected.
