1. When measuring voltage, the measured voltage should be connected with current limiting resistance in series, and then connected to the original terminal of the voltage sensor after obtaining the original current specified by the sensor.
2. The best accuracy of the module is measured under the rated value. When the measured current is lower than the rated value, in order to obtain better accuracy, the original side can use multiple turns, that is, Ip * Np = rated ampere turns;
3. When using Hall sensor, the secondary side power supply should be connected first, then the original side current or voltage should be connected.
4. When measuring the current, it is better to fill the module aperture with a single conductor to obtain the best dynamic characteristics and sensitivity.
