The laboratory shunt resistor from Chauvin Arnoux is a precise and safe measuring device for determining high direct currents (DC) using a voltmeter. The device serves as a measurement shunt and enables current measurement by converting the current into a measurable voltage, which is applied across the terminals to a voltmeter. The construction ensures maximum safety through protective insulation in accordance with the standard IEC 61010, category CAT III 600 V, making it suitable for use in laboratory and industrial environments. The housing is shock-resistant and self-extinguishing, enhancing safety in electrical installations.

Applications

The shunt resistor is designed for professional use in laboratories, schools, and industrial facilities where accurate and safe current measurement is required. It is particularly suitable for applications where high direct currents need to be monitored or controlled, for example in electrical engineering, manufacturing technology, or educational environments. The use of safety sockets with a diameter of 4 mm enables simple and secure connection to measuring instruments and cables.

Functions and Equipment in Detail

The device features an accuracy class of 0.5, ensuring high measurement accuracy. The temperature coefficient is very low, ensuring stable measurement results even under varying ambient temperatures. The short-term overload capacity up to 20 A/200 mV extends the range of applications, as the device remains undamaged even under short-term current surges. Connections are made via safety sockets, ensuring a secure and reliable connection.

Technology Explained Simply

A shunt resistor (also called a shunt) is a resistor connected in series with the circuit to be measured. The current flows through the resistor, generating a voltage proportional to the current. This voltage is measured with a voltmeter, and the current can be calculated from the value. The accuracy of the measurement depends on the accuracy of the resistor and its temperature stability. The protective insulation in accordance with IEC 61010 protects the user from electrical hazards, especially at high voltages in category CAT III 600 V.

Compatibility and Accessories

The shunt resistor is designed for use with voltmeters equipped with suitable connecting cables featuring banana plugs (diameter 4 mm). It is part of a series of measurement shunts available in various rated currents (1 A, 5 A, 10 A, 20 A, 30 A), with this item representing the 10 A – 100 mV version. Use with other shunts from the same series is possible if the electrical parameters (current, voltage) match.

Mounting and Installation

Installation is performed by direct connection into the current circuit, with the shunt resistor connected in series with the current path to be measured. Connections are made via the safety sockets, which provide a secure and mechanically stable connection. It is essential to ensure that the current does not exceed the rated value (10 A) for prolonged periods to avoid overheating. Operating conditions should comply with the requirements of the IEC 61010 standard.

Advantages in Operation

The laboratory shunt resistor offers high measurement accuracy, robust construction, and high safety. The safety sockets and self-extinguishing housing enhance operational safety. The short-term overload capacity expands application possibilities, and the temperature stability ensures reliable results under varying environmental conditions. Compliance with the IEC 61010 standard ensures suitability for safety-critical applications.

Scope of Delivery

The item is delivered with the laboratory shunt resistor and an instruction manual. The manual contains information on correct handling and installation of the device.