General
Connector type	4 mm Ø

This product is a clamp for SMD components from the manufacturer Chauvin Arnoux, designed as test accessory for applications in installations of the category CAT II and below. It is intended for precise and secure measurement on small, surface-mounted components, particularly in electrical and electronic installations. The clamp enables reliable contact with SMD components, where the gold-plated contacts made of copper-beryllium ensure high conductivity and durability. This material combination minimizes contact resistance and ensures a stable measurement connection, even with frequent use in demanding environments.

Applications

The clamp is specifically designed for use in electrical installations of safety category CAT II and lower. This typically includes measurements on devices not directly connected to the main supply, such as in household installations, small consumer units, or during maintenance of electronic assemblies. The application occurs in safety-critical environments where compliance with standards and protection categories is essential.

Functions and Equipment in Detail

The clamp features gold-plated contacts made of copper-beryllium, a material known for its high strength and electrical conductivity. The gold plating protects the contacts from oxidation and corrosion, increasing the reliability of the measurement over time. The connection is made via a plug with a diameter of 4 mm, which is universally compatible with most common test instruments and test setups. The cable has a length of 1.2 m, providing sufficient reach for various application scenarios without impairing handling.

Technology Explained Simply

The use of copper-beryllium as contact material ensures high mechanical stability and electrical conductivity. The gold plating of the contacts prevents oxidation and maintains a constant contact resistance, which is crucial for precise measurement results. The SELV property (Safety Extra-Low Voltage) means the accessory is designed for voltages below 50 V (rms), providing additional safety during handling, especially in environments where people are in direct contact with the device.

Compatibility and Accessories

The clamp is designed for use with multimeters and other test instruments that support a 4 mm plug connection. It is specifically designed for measuring SMD components, i.e., small, surface-mounted electronic components mounted on printed circuit boards. Compatibility with CAT II installations makes it a suitable tool for installers and technicians working in safety-relevant areas.

Mounting and Installation

The clamp is placed directly onto the SMD component to be measured. The contacts precisely engage with the connection points of the components, creating a secure and reproducible measurement connection. The cable is flexible and allows for convenient handling, even in tight installation areas. The connection to the test instrument is made via the 4 mm plug, which is inserted into the corresponding socket on the device.

Advantages in Operation

The clamp provides reliable and precise measurement on SMD components, with the gold-plated copper-beryllium contacts ensuring high service life and low maintenance frequency. The SELV property increases safety during handling, especially in environments where people are in direct contact with the device. The 1.2 m long cable connection provides sufficient freedom of movement without affecting measurement accuracy. The accessory is therefore ideal for technicians working in the maintenance and installation of electronic devices who value a stable, safe, and precise measurement connection.