Eigenschaften
Test voltage	50 - 100 V
Range at maximum test voltage	20 GΩ
50 V	10 kΩ - 10 GΩ
100 V	20 kΩ - 20 GΩ
Test current / resolution	0,01 µA - 39,99 µA / 10 nA ; 40,0 - 399,9 µA / 100 nA 0,400 - 2,000 mA / 1 µA
Discharge time (at 25 V)	< 2 s/µF
Dimensions / weight / IP rating	211 x 108 x 60 mm / 850 g / IP 54 / IK 04

The Chauvin Arnoux CA 6532 is a digital insulation and continuity tester, specifically designed for applications in telecommunications. The device enables insulation resistance measurements up to 20 GΩ and offers two test voltages (50 V and 100 V), suitable for testing telecommunications lines. Measurements are performed in accordance with the standard IEC 61557-2, meeting the minimum value of 2 GΩ. The device is suitable for use in industrial maintenance and for special applications such as in electronics or ESD technology.

Applications

The CA 6532 is primarily used for testing insulation resistance in telecommunications networks. The test voltages of 50 V and 100 V are tailored to the requirements of this industry. Additionally, the device can be used for continuity testing, with the test current adjustable between 200 mA and 20 mA. Continuity testing is performed in accordance with IEC 61557. Cable length calculation from 0 to 100 km is based on programmable length-related capacitance (nF/km), supporting the localization of line faults.

Functions and Equipment in Detail

The device features four measurement modes: Manual, Continuous, Timer, and PI/DAR. PI (Polarization Index) and DAR (Dielectric Absorption Ratio) values are determined over a period of 10 minutes to 1 minute and 1 minute to 30 seconds, respectively, to evaluate insulation quality. The ΔREL function enables display of the difference from a previously stored reference value, allowing detection of changes in insulation condition. The alarm function includes two fixed threshold values and one programmable threshold value to visually or acoustically signal critical values.

Technology Explained Simply

Insulation measurement is performed with an input impedance of 400 kΩ and an accuracy of ± (3 % + 2 pts). The test voltage can be selected between 50 V and 100 V, with the measurement range reaching up to 20 GΩ at maximum test voltage. Voltage measurements are performed in the range of 0.3 V to 700 V with a resolution of 0.1 V (up to 399.9 V) or 1 V (from 400 V). Frequency measurement covers the range from 15.3 Hz to 800 Hz, with accuracy of ± (1 % + 2 pts) from 15.3 Hz to 399.9 Hz and ± (1 % + 1 pt) from 400 Hz. Capacitance measurement reaches up to 10 µF, and continuity resistance measurement is performed in the range of 0.00 Ω to 10.00 Ω (at 200 mA) or 0.0 Ω to 100.0 Ω (at 20 mA). Measurement lead compensation up to 9.99 Ω improves accuracy during continuity testing.

Compatibility and Accessories

The device is equipped with Bluetooth® Class II, enabling wireless communication with a PC. The software Megohmmeter Transfer (MEG) is included as standard and allows real-time data acquisition, graphical representation of measurement values, and data transfer. The optional software DataView® enables creation of extended test reports with location and operator data. Suitable accessories include crocodile clips (alligator clips) 20 A CAT III 1000 V red + black, a probe for continuity testing, a remote control probe No. 3, test leads with 4 mm straight/angled plugs (1.5 m, 15 A, CAT IV, 1000 V, silicone, red + black), crocodile clips CAT IV-1000 V 15 A red + black, test probes with 4 mm socket CAT IV and CAT III 1000 V PVC red and black, a carrying case, and the DataView software.

Mounting and Installation

The device operates without additional mounting or installation. The magnetic folding stand allows attachment to steel surfaces, enabling the user to have both hands free during measurement. Operation is via a TEST button, which can also be operated with insulated protective gloves. The remote control probe with integrated lighting facilitates work in dark environments.

Operational Advantages

The CA 6532 offers high measurement accuracy and comprehensive functionality in a compact and robust housing. The protection rating IP54 and IK04, along with measurement category 600 V CAT IV, ensure safe operation in industrial environments. The large, illuminated dual digital display with logarithmic bar graph shows measurement values, test voltage, test current, and timer. Memory for up to 1300 measurement values enables detailed analysis. Automatic shutdown after 5 minutes (deactivatable) ensures efficient power supply. Power supply is via 6 LR6 batteries, with autonomy of 1,500 insulation measurements (5 s ON / 55 s OFF) and 3,000 continuity measurements (5 s ON / 55 s OFF). EMC and electrical safety comply with standards IEC 61326-1, IEC 61010-1, and IEC 61010-2-030, 600 V CAT IV. Compliance with IEC 61557 parts 1, 2, 4, and 10 is ensured. Batteries are not included in the delivery scope.