The laboratory shunt from Chauvin Arnoux is a measuring shunt for precise determination of high direct currents (DC) in professional laboratory and industrial environments. It enables current measurement via voltage measurement across a known resistance, with a voltmeter connected to the shunt's terminal clamps. The measurement is thus indirect, with the current value calculated from the voltage drop and the known resistance value. The shunt is designed for use in environments with high electrical safety requirements and complies with the standard IEC 61010-1, Category CAT III 600 V, ensuring protective insulation for measuring instruments in industrial installations.

Applications

The shunt is designed for use in laboratory and industrial applications where precise and safe current measurement is required. It is particularly suitable for applications where high direct currents need to be monitored or measured, for example in electrical engineering, the machine construction industry, or in the field of energy supply. The double insulation and protection class CAT III 600 V also make it suitable for use in environments with increased electrical risk.

Functions and Equipment in Detail

The shunt features safety sockets with a diameter of 4 mm, enabling secure and easy connection with measuring leads. The sockets are designed to ensure a secure contact and minimize the risk of short circuits or incorrect connections. The housing is impact-resistant and self-extinguishing, ensuring durability and safe operation even under demanding conditions. The accuracy class of 0.5 ensures high measurement accuracy, while the very low temperature coefficient ensures that measurement values remain stable even with changing ambient temperatures.

Technology Explained Simply

A shunt, also known as a shunt resistor, is a resistor connected in series with the circuit to be measured. The current flows through the shunt, causing a voltage drop proportional to the current. This voltage drop is measured with a voltmeter, and the current is calculated by dividing the measured voltage by the known resistance value of the shunt. The accuracy of the measurement depends on the accuracy of the resistance value and the stability of the resistance. The very low temperature coefficient ensures that the resistance value changes only minimally even with temperature fluctuations, increasing measurement accuracy.

Compatibility and Accessories

The shunt is designed for use with voltmeters equipped with appropriate connecting cables featuring banana plugs (4 mm diameter). The double insulation and safety sockets make it compatible with measuring instruments approved for use in CAT III 600 V environments.

Mounting and Installation

Installation is performed by directly integrating the shunt into the current circuit, with current supply via the safety sockets. Connection to the voltmeter is also made via the sockets, with polarity to be observed to ensure correct measurement. The robust design allows for simple mounting without requiring additional tools or mounting aids. The operating instructions, included in the delivery scope, contain instructions for correct use and installation.

Advantages in Operation

The laboratory shunt offers high safety due to double insulation and protection class CAT III 600 V. The accuracy class 0.5 and the very low temperature coefficient ensure reliable and reproducible measurement results. The impact-resistant and self-extinguishing housing increases service life and operational safety, especially in industrial environments. The safety sockets simplify handling and reduce the risk of incorrect connections. The combination of robustness, safety, and accuracy makes the shunt a reliable tool for professional applications.

Delivery Scope

The delivery scope includes the laboratory shunt and the operating instructions.