This product is an accessory for the Micro-Ohmmeters C.A 6250 and C.A 6255 by Chauvin Arnoux. It enables precise resistance measurements on materials exhibiting a high temperature coefficient by allowing the measuring devices to recalculate the measured resistance to a temperature-compensated basis. This function is particularly relevant in industrial applications where the accuracy of resistance measurement under varying temperature conditions is critical, for example, in the analysis of conductive connections or metallic materials.

Applications
This accessory is used when measuring materials with strong temperature-dependent conductivity, such as copper or aluminium in electrical installations. In such cases, the temperature of the material can significantly affect the measured resistance. Temperature-compensated measurement allows the resistance to be recalculated to a defined reference temperature (e.g. 20 °C), ensuring comparable and reproducible results. This is especially important for maintenance and testing in electrical engineering, plant servicing, or quality control in manufacturing.

Functions and Equipment in Detail
The accessory extends the functionality of the Micro-Ohmmeters C.A 6250 and C.A 6255 by adding the capability for temperature compensation. It enables the calculation of the temperature-compensated resistance, making the measurement results independent of the current temperature of the material. The exact implementation method of the accessory (e.g.

Technology Explained Simply
Materials with a high temperature coefficient change their electrical resistance depending on temperature – resistance increases with heating. Without compensation, a measurement value obtained at 30 °C would not be directly comparable to one taken at 20 °C. The accessory enables the measuring device to mathematically correct for this temperature influence, recalculating the resistance value to a standard temperature. This increases the reliability of the measurement, especially for repeated testing over extended periods or under varying environmental conditions.

Compatibility and Accessories
The accessory is designed exclusively for the Micro-Ohmmeters C.A 6250 and C.A 6255 by Chauvin Arnoux. It is not suitable for other devices or models.

Installation and Mounting
Installation is carried out according to the instructions included in the delivery. It is assumed that installation requires no special tools, as no tool requirements are specified.

Operational Advantages
Temperature-compensated measurement increases the accuracy of resistance measurements, improving the reliability of testing and maintenance work. Results are reproducible and comparable, regardless of the current temperature of the material. This reduces sources of error and supports precise diagnosis of cable connections, switchgear, or other electrical components.

Scope of Delivery
The product is delivered with a special accessory for temperature compensation and a user manual. No other accessories, batteries, tools, or additional documentation are mentioned.