Eigenschaften
Aac	1000 A
Adc	1500 A
Vac	1 200 V
Vdc	1 700 V
Frequency in V / in I	Ja / Ja
Resistance	100 kΩ
Dimensions / weight	92 x 272 x 41 mm 600 g
Automatic ranges (Autorange)
Automatic AC/DC detection
Charge development (TrueInrush)
Peak+ / Peak-

The Chauvin Arnoux F406 is a multimeter clamp for professional use in electrical engineering, particularly for maintenance, inspection, and diagnosis of medium-current installations. The device combines the functions of a digital multimeter with the practical application of a current clamp and enables precise measurements of alternating and direct current, voltage, resistance, as well as complex electrical parameters such as power, phase rotation, and harmonics. The clamp is designed for use in low-voltage installations and meets the highest safety requirements according to IEC 61010-1 and IEC 61010-2-032.

Applications

The F406 is particularly suitable for electrical specialists and technicians in industry, for plant maintenance, or in service operations. It is suitable for measurements on single-phase and three-phase systems where both alternating and direct current are present. The high safety category CAT IV up to 1000 V and CAT III up to 1500 V allows use in hazardous environments, such as at distribution boards or main lines. The protection rating IP54 protects the device against dust and splashing water, making it suitable for outdoor use or in damp environments.

Functions and Equipment in Detail

The device features a backlit LCD display with a resolution of 10000 points, ensuring clear and precise display even in poor lighting conditions. Measurements are taken using the TRMS method, enabling accurate detection of alternating and direct current regardless of signal shape. The clamp automatically detects whether a measured value is alternating or direct current and adjusts accordingly. Current measurement ranges up to 1000 A AC and 1500 A DC, with the AC+DC combination reaching up to 1000 A (1500 A peak). Voltage measurement covers up to 1200 V AC and 1700 V DC, with the AC+DC combination supported up to 1700 V peak.

Technology Explained Simply

The F406 operates with a digital 12-bit TRMS acquisition system, ensuring high measurement accuracy even with distorted signals. Accuracy is 1 % of the measured value plus 3 digits. The clamp offers functions such as Min/Max, Peak+/-, Hold, and relative difference measurements (ΔX, ΔX/X(%)), which are useful for analyzing fluctuations and changes in the network. Measurement of power (W, VAR, VA), power factor (FP), and harmonic distortions (THDf, THDr) enables comprehensive diagnosis of electrical systems. Phase rotation can be determined using the 2-wire method, which is important for testing three-phase installations. The TrueInrush function allows measurement of motor starting currents and charging developments.

Compatibility and Accessories

To extend functionality, various accessories can be used, including test leads with 4 mm connectors (straight and angled), test probes, crocodile clips, and a multi-purpose magnetic holder. The test leads are rated for CAT IV 1000 V and feature insulation made of PVC or silicone. A transport case is also available for safe transportation of the device. The clamp is delivered with a pouch, as stated on the manufacturer's website.

Mounting and Installation

The clamp is simply closed around the conductor to be measured, with a jaw opening diameter of 48 mm. Operation is via an ergonomic rotary switch that can also be operated with protective gloves. The buttons are designed so that each button performs exactly one function in every operating mode, simplifying operation. Power supply is via four 1.5 V LR06 batteries.

Advantages in Operation

The F406 offers high measurement accuracy, comprehensive functionality, and a robust design. Automatic range selection and automatic AC/DC detection reduce the risk of errors. Integrated safety according to CAT IV 1000 V and CAT III 1500 V, as well as protection rating IP54, enhance user protection. Functions such as Min/Max, Peak, Hold, and difference measurements support the analysis of electrical systems. The clamp is designed for one-handed operation and is therefore also suitable for situations with limited space or when working with protective equipment.