Read the instructions carefully before use to find out whether it is AC or AC/DC. The voltage of the circuit under test must not exceed the value indicated on the clamp meter, otherwise it may easily cause a grounding accident or cause a risk of electric shock. The current of one phase conductor can only be measured at a time. The measured conductor should be placed in the center of the clamp window. It is not allowed to sandwich the multiphase conductor in the window. Clamp meter should be estimated before the measured current size, and then determine which range. If it is impossible to estimate, you can use the maximum range and then change it to the correct reading. It is not possible to use small currents to measure large currents. To prevent damage to the meter. The jaws should be tightly closed during the measurement. If there is noise after closing, the jaws can be opened once again. If the noise cannot be eliminated, check whether the joint surfaces on the magnetic circuit are clean and clean. When there is dust, clean it. Due to the low accuracy of the clamp ammeter itself, when measuring a small current, the following methods can be used: First, the wire of the circuit under test is wound several times, and then put into the jaws of the clamp meter for measurement. At this point, the current value indicated by the clamp meter is not the actual value to be measured. The actual current should be the reading of the clamp meter divided by the number of windings of the wire. Do not operate with electricity during maintenance to prevent electric shock.
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