Measurement method of Hall current sensor

Hall Current Sensor-Measurement Method of Hall Current Sensor 

1. The primary wire should be placed in the center of the sensor's inner hole, and should not be placed off-center as much as possible;
2. The primary wire should be placed as completely as possible in the sensor's inner hole, without leaving any gaps;
3. The current to be measured should be close to the sensor's standard rated value IPN, and should not differ too much. If conditions are limited, there is only one sensor with a very high rated value, and the current value to be measured is much lower than the rated value. In order to improve the measurement accuracy, the primary wire can be wound a few more times to make it close to the rated value. For example, when a sensor with a rated value of 100A is used to measure a current of 10A, in order to improve the accuracy, the primary wire can be wound around the center of the sensor's inner hole ten times (generally, NP=1; one circle around the inner hole, NP=2; ...; nine circles, NP=10, then NP×10A=100A is equal to the rated value of the sensor, thereby improving the accuracy);
4. When the current value to be measured is IPN/10, it can still have a higher accuracy at 25℃.