Eigenschaften
Voltage warning indicator	Ja > 25 V
Recording of R(t)	-
Dimensions / weight	270 x 250 x 180 mm / 4,3 kg

The Chauvin Arnoux CA 6505 is an insulation tester for use in industrial plants and for the maintenance of electrical equipment. It enables precise measurement of insulation resistance with test voltages up to 5000 V DC and a measurement range from 10 kΩ to 10 TΩ. The device is housed in a robust site enclosure with protection rating IP53 and is powered by an integrated rechargeable NiMH battery. Display is via a large, backlit LCD with bar graph, which shows measurement values digitally and enables quick visual assessment.

Applications

The CA 6505 is used for testing and maintenance of electrical machines, cables, motors, generators, and transformers. It serves both Go/No Go testing and qualitative assessment of insulation quality as part of preventive maintenance. Measurement is performed directly after connecting to the test object, with voltage, frequency, capacitance, and leakage current being recorded. The application is primarily in industrial environments where high safety requirements and robust equipment are necessary.

Functions and Equipment in Detail

The device offers flexible voltage programming: from 40 V to 1000 V in 10 V steps and from 1000 V to 5100 V in 100 V steps. Measurement duration can be programmed and ranges from 1 to 59 minutes. Automatic calculation of quality parameters DAR (dielectric absorption ratio) and PI (polarization index) enables deeper analysis of insulation quality. The PI value is calculated by default over 10 minutes versus 1 minute, with adjustable times from 30 seconds to 59 minutes. Leakage current measurement is in the range of 0.001 nA to 3 mA, and capacitance can be measured from 0.005 to 49.99 μF.

Technology Explained Simply

The test voltage can be set in four fixed steps (500 V, 1000 V, 2500 V, 5000 V) or variably. Measurement accuracy is ±5 % of value ±3 digits in the range from 1 kΩ to 400 GΩ and ±15 % of value ±10 digits from 400 GΩ to 10 TΩ. Voltage warning indication activates at 25 V, and test inhibition protects against accidental high-voltage application. Electrical safety complies with standards IEC 61010 (1000 V CAT III, 600 V CAT IV) and IEC 61557. Power supply is via a rechargeable NiMH battery, suitable for mobile use.

Compatibility and Accessories

Various accessories are available for use with the CA 6505, including power cable, HV test leads in different lengths (3 m, 8 m, 15 m) with crocodile clips in blue, red, and black, as well as special guard leads. Test probes with 4 mm socket CAT IV and CAT III 1000 V PVC are also available. A transport case is also available. The test leads are designed for safe and reliable connection to test objects.

Mounting and Installation

The device is ready for immediate use after connecting to the test object. It features a foldable carrying handle for space-saving storage and a plug for mains connection and battery recharging. Operation is via front buttons, enabling settings for voltage, measurement duration, and quality parameters. The graphical display with text, symbols, and bar graph supports interpretation of results.

Operational Advantages

The CA 6505 offers high measurement accuracy and flexibility in setting test voltage and duration. Calculation of quality parameters DAR and PI enables detailed analysis of insulation quality. The robust construction and IP53 protection rating make the device suitable for use under site conditions. The rechargeable power supply ensures mobile use without an external power source. The display is clear and easy to read, facilitating quick interpretation of measurement results. Compliance with standards IEC 61010 and IEC 61557 ensures electrical safety during use.