How to choose the appropriate current sensor model

Firstly, there are size requirements. For example, to measure the current passing through the interior of a wire, when installing a current sensor, the wire needs to be threaded through the sensor's inner hole. The size of the sensor's inner hole varies depending on the specifications. If the inner hole size is too small and the performance is relatively coarse, the direct result is that it cannot be installed properly. In the opposite case, if it is a sensor with a relatively large size, the size of the inner hole will also be relatively large. When too thin a wire passes through, it will leave a large gap, which will also affect the measurement accuracy. Therefore, it is best to choose an inner hole size that matches the outer diameter of the wire, which not only facilitates installation but also further reduces measurement errors.

When selecting a current sensor model, it is also important to pay attention to other parameters, such as how wide the sensor can withstand temperature changes. For example, sensors used outdoors have very low air temperatures in winter, and if they exceed the sensor's tolerance value, it can cause measurement data to deviate. Sensors used in high-temperature environments may also be damaged when the temperature exceeds their maximum tolerance. Of course, if the temperature is relatively stable, the sensor will also be more convenient. In addition to temperature affecting the performance of sensors, humidity and vibration can also have an impact. Users can choose the corresponding model according to the characteristics of the environment, which not only ensures its use, but also does not require too much cost in later maintenance.

The last point to remind is about the size of the current sensor itself. For example, in many devices, the space left for modification is not large, and it is possible that a narrow space cannot accommodate a large-sized sensor, so it is necessary to choose a more compact type. If it is an open space, it is very convenient to install other components, and it will also be much more convenient when selecting and installing sensors. In short, the application range of sensors is very wide, with various types of models, and suitable products can usually be found.

Our high-precision current sensor products have a range from 1mA to 25kA and are constantly expanding in models. The accuracy can be provided in multiple series, with a range of 1 ‰~1ppm. The voltage sensor range is from 100V~2kV, with an accuracy of 1 ‰~0.5 ‰. The working temperature range can all reach -40~+85 ℃.