General
Enclosure diameter	16 mm

The MINI 102 current transformer from Chauvin Arnoux is a compact accessory for precise alternating current measurement in applications with low to medium power in commercial and industrial environments. It serves as an add-on device for multimeters and enables non-invasive current measurement by clamping around a conductor with a maximum diameter of 16 mm. Due to its compact design, it is particularly suitable for measurements in confined installation environments where space is limited. The device features overvoltage protection at the output, which protects the device when voltage is present on the clamped conductors and the current transformer is disconnected.

Applications

The MINI 102 is used in electrical and measurement technology to measure alternating currents in the range of 0.05 A to 200 A AC. It is especially useful for monitoring power consumption in smaller electrical installations, troubleshooting circuits, or testing devices with low current requirements. The combination of compact design and high accuracy makes it a reliable tool for technical personnel in the trades and industry.

Functions and Features in Detail

The current transformer operates on the principle of inductive current measurement. It clamps around the conductor to be measured and generates a proportional output signal, which is transmitted via a cable with an insulated 4-mm plug to a measuring device. The turns ratio is 1000:1, meaning that a current of 200 A at the input produces an output signal of 0.2 A. The typical accuracy of ≤ 1 % ensures reliable measurement results suitable for precise diagnostics and documentation. The integrated overvoltage protection at the output protects the connected measuring device and the current transformer itself from damage due to unexpected voltage spikes when disconnecting.

Technology Explained Simply

A current transformer like the MINI 102 uses the principle of electromagnetic induction. When alternating current flows through a conductor, it generates a magnetic field that is detected by the clamp of the current transformer. This field induces a current in the secondary winding of the transformer, which is proportional to the primary current. The output signal is transmitted via the cable with the 4-mm plug to a multimeter or another measuring device. An accuracy of ≤ 1 % means that the deviation of the measured value from the actual value is at most 1 %, which is sufficient for many industrial applications.

Compatibility and Accessories

The MINI 102 is designed as an accessory for multimeters that have a corresponding input for current measurements with external sensors. It is specifically designed for use with devices from the MiniFlex and DigiFlex series by Chauvin Arnoux, such as the MA100, MA200, M400D, and MA4000D models. The connection is made via the cable with the 4-mm plug, which is connected to the appropriate input on the measuring device. Compatibility with these devices enables seamless integration into existing measurement systems.

Installation and Mounting

Installation is carried out by simply clamping the conductor to be measured with the clamp of the current transformer. The clamp opening is designed for a maximum diameter of 16 mm, meaning only conductors with a diameter up to this value can be measured. The cable with the 4-mm plug is connected to the measuring device. The user manual, included in the delivery, provides guidance on correct handling and avoiding errors during measurement.

Operational Advantages

The MINI 102 offers high measurement accuracy in a compact design, making it particularly suitable for use in confined spaces. The integrated overvoltage protection increases safety during handling, especially when the device is disconnected during measurement. Simple operation and direct connection to multimeters reduce measurement complexity and enable quick diagnosis. The use of alternating current as the output signal is standard-compliant for most measurement applications in industrial environments.

Delivery Contents

The delivery includes the MINI 102 current transformer and the user manual.