CR4120-20

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A current transducer is an electronic device designed to convert current signals from a low-level to a higher-level or vice versa. It is commonly used in power engineering applications. The CR4120-20 current transducer is a powerful and accurate device used in measuring current, voltage and power.

The CR4120-20 is an array of four identical current transducers, each capable of measuring a range of current up to 4A. It is used to measure the output current of an amplifier, such as in audio systems, test instruments, and power supplies. The device is accurate to within +/-0.1%, and has a maximum voltage rating of 40V DC.

The four transducers are arranged in series and designated 1, 2, 3, and 4. Transducer 1 is connected to the voltage source, and transducers 2, 3, and 4 are connected to the loads. The voltage is applied to the transducers via an external load resistor, which is compensated to maintain a constant voltage level. The output current is then measured across each of the transducers. The current sensing range of the CR4120-20 is then determined by the sum of the currents flowing through the four transducers.

The device also features an integrated temperature sensor that constantly monitors the transducer temperature, ensuring accurate and reliable performance. This temperature sensor also compensates for any variations in the load measuring ability of the transducers to maintain maximum accuracy.

The CR4120-20 is also designed for use in harsh environments, with an operating temperature range of -40°C to +85°C. The device also has an elevated thermal compound which allows for heat dissipation from the transducer. It is also resistant to shock and vibrations, ensuring durability even in adverse conditions.

The CR4120-20 current transducer is a powerful and accurate device capable of measuring current, voltage and power. Its rugged construction and accurate sensing make it ideal for use in a wide range of applications. The four transducers are connected in series and offer unprecedented accuracy, making it the perfect instrument for measuring output current of amplifiers in test and power systems.

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