This accessory from Chauvin Arnoux consists of a set of two Kelvin mini clamps, each equipped with a 3 m long cable. It is specifically designed for precise measurement of small resistances in conjunction with CHAUVIN ARNOUX Micro-Ohmmeters. The mini Kelvin clamps enable reliable and interference-free measurement, particularly in demanding testing and measurement environments where high accuracy is required.

Applications
The Kelvin mini clamps are suitable for applications in the field of electrical testing technology where precise determination of very small resistances is essential. This includes, for example, testing contact resistances in switches, fuses, cable connections, or quality control of electrical components. The cables with a length of 3 m provide sufficient freedom of movement and allow measurement at hard-to-reach locations without compromising measurement accuracy.

Functions and Equipment in Detail
The clamps are designed as Kelvin connections, meaning that at each measurement point, one current lead and one measurement lead are connected. This minimizes the influence of the clamp's own contact resistance on the measurement result. The miniaturized design of the clamps allows for precise attachment to small or tight connection points. The cables are robust and designed for use in industrial environments, with a length of 3 m ensuring flexible handling.

Technology Explained Simply
The Kelvin method, also known as four-wire technique, separates the current supply from the measurement path. This prevents the resistance of the connecting leads or the clamps themselves from affecting the measurement. The mini Kelvin clamps are optimized for this, as they feature small contact surfaces while still ensuring a stable connection. Use with Micro-Ohmmeters, which are designed for very small resistances, enables high measurement accuracy in the range of milliohms or below.

Compatibility and Accessories
This accessory is exclusively intended for use with CHAUVIN ARNOUX Micro-Ohmmeters. It is offered as a supplement to these measuring instruments to enhance measurement accuracy when testing electrical connections. The cables are rated for a current load of 1 A, which is sufficient for typical tests in the field of electrical installation technology.

Installation and Mounting
Installation is carried out by simply connecting the clamps to the measurement point. The cables are already attached to the clamps, so no additional connections are required. The clamps are designed to be easily placed on the contacts to be tested without damaging the connection. The length of 3 m allows for flexible positioning of the measuring device relative to the measurement point.

Operational Advantages
Using the Kelvin mini clamps significantly improves measurement accuracy when determining small resistances. The separation of current and measurement paths reduces error sources that could arise from lead resistances. The robust design of the cables and clamps ensures long service life and reliable performance even with frequent use. The combination with Micro-Ohmmeters enables precise and reproducible measurements, which are essential for quality control and maintenance work in the electrical trade.