Eigenschaften
Type	3P & 4P
Frequency	128 Hz
Weight	3,3 kg

The Chauvin Arnoux CA 6462 is a digital grounding and earth resistance meter, specifically developed for on-site use. The device enables measurement of grounding, soil, and transition resistances, combining three functions in one instrument. It is designed for field use and features a robust, sealed housing suitable for harsh conditions. Measurement is performed using 3-wire or 4-wire methods, with switching between the two methods achieved via a non-removable shorting bar between the E and ES terminals. The display is a large, backlit LCD with 2000 count resolution, providing clear and easily readable measurement values.

Applications
This device is suitable for testing and diagnosing grounding systems in various industries, particularly in electrical engineering, power supply, and industrial sectors. It is used for both verifying existing grounding systems and installing new grounding electrodes. Measuring transition resistances is especially important for checking connections between grounding electrodes and grounding conductors, ensuring reliable operation of grounding systems. The measurement frequency of 128 Hz minimizes interference from mains voltage, enabling precise measurements even in electrically noisy environments.

Functions and Features in Detail
The CA 6462 features simple operation with a single TEST button used for all measurements. Connections are made via four large, color-coded terminals, allowing secure and quick attachment of test leads. Measurement values are displayed digitally, with resolution varying by range: 10 mΩ, 100 mΩ, or 1 Ω. The measurement range covers values from 0.01 to 2000 Ω, with the device automatically switching between three ranges. Accuracy is ± (2 % + 1 pt), ensuring high reliability of measurement results. Three indicator lights validate measurements and signal potential errors or disturbances.

Technology Explained Simply
Power is supplied by an integrated rechargeable NiMH battery, which can be charged using a built-in charger. The battery enables approximately 1,180 measurements at a duration of 15 seconds per measurement. The open-circuit voltage is maximum 42 V peak, ensuring safety during handling. The IP53 protection rating ensures the device is protected against dust and splashing water, making it suitable for outdoor use. The housing includes a folding lid and a carrying handle, facilitating handling and transport.

Compatibility and Accessories
Various accessories are available for use with the CA 6462, enhancing efficiency and safety during measurements. These include accessory kits for grounding and earth resistance measurement with four grounding electrodes (in lengths of 100 m and 150 m), reels with test leads in various colors and lengths (e.g., 50 m, 100 m, 150 m), and adapter cable lugs. Additionally, carrying cases, fuses, and a power cable are available. These accessories allow flexible adaptation to different measurement tasks and environments.

Installation and Mounting
Installing the device requires no special tools. Test leads are connected to the color-coded terminals, with color coding simplifying the connection of grounding electrodes and measurement points. Measurement begins by pressing the TEST button. The display immediately shows the measurement result, with indicator lights signaling any potential errors. The integrated battery and charger enable mobile use without external power supply.

Operational Advantages
The CA 6462 offers high reliability and accuracy in measuring grounding resistance. Simple operation and clear display of measurement values reduce the risk of errors. The integrated battery and charger enable mobile use, allowing the device to be deployed even in remote or non-electrified areas. The robust construction and IP53 protection rating ensure long service life and safe operation under harsh conditions. Combining three functions in one device reduces the number of required instruments and simplifies field testing equipment.

Electrical Safety and Compliance with Standards
The device complies with standards IEC 61010 and IEC 61557, which govern electrical safety and earth resistance measurement. Compliance with these standards ensures the device can be used safely and reliably. Standard IEC 61557-1 and -5 specifies requirements for grounding and insulation testing instruments, ensuring the quality and reliability of the CA 6462. Dimensions are 273 x 247 x 127 mm (without extended handle), and weight is 3.3 kg, representing a compact and portable size.