CR4420S-25

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Current transducers are electrical instruments designed to measure AC and DC current flows. The CR4420S-25 is a current transducer designed to measure high frequency current up to 25A. It has the features of small size, low power consumption and high accuracy. In this article, we will discuss its application field and working principle.

Application Field

The CR4420S-25 is an ideal choice for high frequency current measurements in the industrial and commercial fields. In industrial equipment, this current transducer can be used to measure motor current under different load conditions. It can also be used for detecting and monitoring temperatures, pressures, and other parameters. In commercial applications, it can be used for power monitoring in industrial automation systems, as well as lighting, heating, and cooling systems. It can also be used for current sensing and protection in medical instruments, as well as electrical safety.

Working Principle

The CR4420S-25 is a current transducer based on the Hall Effect principle. The Hall Effect is a physical phenomenon in which a current-carrying conductor experiences a Lorentz force when placed in a magnetic field, causing a voltage potential to be produced transverse to the current flow. In this current transducer, the Hall voltage generated by the Lorentz force is directly proportional to the applied current. The Hall voltage is then amplified by a linear amplifier, before being converted to a digital signal by an analog-to-digital converter (ADC). The digital signal is then processed by a microcontroller, and its output is calibrated to the input current.

The CR4420S-25 offers a high degree of accuracy, with an accuracy of 0.2%, and a voltage range of up to 25A. It is designed to be highly reliable and is tested to meet all the necessary safety and EMC requirements. The device also offers excellent temperature compensation to ensure a stable performance even in extreme operating temperatures.

In summary, the CR4420S-25 is an excellent choice for high frequency current measurements due to its small size, low power consumption, high accuracy, and temperature compensation. It is suitable for use in a wide range of industrial and commercial applications, such as motor current measurements, temperature and pressure sensing, power monitoring, and electrical safety.

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