1. When there is a high requirement for measurement accuracy, it is best to use an internal transformer for measurement. When connecting the current transformer, it is necessary to strictly ensure that the secondary side of the current transformer is not open circuit.
2. The clamp type transformer is a high-precision measurement transformer, and it is necessary to handle it gently to avoid collision or damage, otherwise it will affect the testing accuracy. The cutting surface of the clamp shaped watch should be kept clean and smooth, and should not contaminate other debris to ensure good closure of the clamp shaped watch.
3. Before starting the test, please enter the correct setting parameters, otherwise it may cause deviation or errors in the data results.
4. When using a clamp shaped watch to clamp the aluminum bar once, be sure not to let the iron core of the clamp shaped watch cut into the aluminum bar, otherwise danger may occur and damage the clamp shaped watch and instrument.