General
Enclosure diameter	26 mm

The current clamp MH60 from Chauvin Arnoux is a compact current transformer specifically designed for use with oscilloscopes. It enables the measurement of direct and alternating currents in the range of 10 mA to 100 A (140 A peak), making it suitable for applications requiring precise measurement of very low to medium currents. The device features a compact design with a jaw opening diameter of 26 mm, making it ideal for use in tight spaces or with densely routed cables. The current clamp is powered via a power adapter or a permanently embedded µUSB cable, which can be directly connected to the oscilloscope. An integrated NiMH battery also allows for up to 8 hours of operation without a power supply.

Applications

The MH60 is designed for various applications in the fields of electrical engineering and electronics. These include testing and analysis of power electronics, diagnostics in automotive technology, and quality control during the production of electrical appliances. The high bandwidth of 1 MHz and the ability to measure both direct and alternating currents make the device particularly suitable for dynamic measurements where fast current waveforms need to be captured.

Functions and Features in Detail

The current clamp provides an output signal in the form of direct and alternating voltage with a turns ratio of 1 A/10 mV. This ratio allows for direct scaling of the measured current on the oscilloscope. The typical accuracy is ≤ 1.5 %, which is sufficient for precise measurements in technical applications. An automatic DC zero adjustment ensures that direct current measurements are performed without offset errors. Additionally, two switchable filters are available: a 30-kHz filter and a 3-kHz filter, which can be used depending on requirements to reduce interference.

Technology Explained Simply

The MH60 operates as an isolated current transformer that encloses the conductor to be measured and detects the flowing current inductively. The output signal is transmitted to the oscilloscope via a BNC connector (coaxial plug). The isolation between the measured object and the measuring device protects the user and the device from hazardous voltages. Power supply is either via a power adapter or via the µUSB cable connected to the oscilloscope, allowing the current clamp to operate without an external power source. The integrated NiMH battery enables mobile use.

Compatibility and Accessories

The current clamp is designed for use with oscilloscopes that have a BNC input. Connection is made via the permanently embedded µUSB cable, which is directly connected to the oscilloscope. Power supply via the oscilloscope serves as an alternative to the power adapter and enables flexible use. The device is not intended for use with other measuring instruments without a BNC input.

Mounting and Installation

Mounting is achieved by simply clamping the conductor to be measured with the jaw. No additional mounting or installation is required. The current clamp is directly connected to the oscilloscope, with the µUSB cable or power adapter serving as the power supply. The user manual, included in the delivery, describes operation and settings.

Operational Advantages

The MH60 offers a high bandwidth of 1 MHz, which is important for capturing fast current waveforms. The combination of compact design, integrated battery, and flexible power supply enables mobile and independent use. The automatic zero adjustment function for direct current measurements reduces error sources. The integrated filters support measurement accuracy in environments prone to interference.

Delivery Contents

The delivery includes the current clamp model MH60, a power adapter, and a user manual.