Chauvin-Arnoux C.A 6549 – 5 kV Digital Insulation Tester (Megohmmeter)

Overview

The Chauvin-Arnoux C.A 6549 is a high-performance digital megohmmeter designed for demanding insulation testing in industrial, power utility, and maintenance environments. Built to offer both qualitative and quantitative analysis, this instrument combines advanced measurement functions, diagnostics, memory and connectivity, all within a rugged, site-proof enclosure. Whether checking insulation on cables, motors, transformers, or generators, the CA6549 ensures both precision and safety.

Key Features

• Wide insulation resistance range: from 10 kΩ to 10 TΩ, enabling measurement of very high insulation resistances.

• Multiple fixed test voltages (500 V, 1,000 V, 2,500 V, 5,000 V), plus fully adjustable test voltage from 40 V to 5,100 V in fine (10 V) or coarse (100 V) increments.

• Step voltage / ramp voltage mode: ability to increase test voltage in steps and track resistance vs voltage (R(Utest)) curve, useful for detecting partial defects under higher stress.

• Automatic calculation of DAR (Dielectric Absorption Ratio), PI (Polarisation Index), and DD (Dielectric Discharge index) to assess insulation quality and aging.

• Reference temperature compensation: displays temperature during test and recalculates resistance to a defined reference temperature for consistent comparisons.

• Large graphical backlit LCD screen: displays numeric values, symbols, messages, bar-graph, real-time R(t) curve or trend curves.

• Robust data storage: thousands of measurement entries stored internally; organized via object/test indices; supports transferring data via RS-232 (or USB if option) to PC or printer.

• Battery + mains operation: NiMH rechargeable battery ensures mobility; mains power keeps device operational on site. Typical battery life up to 30 days under moderate daily test usage (e.g. 10 DAR and 5 PI tests per day).

• Safety & ruggedness: meets IEC safety standards (IEC 61010-1, IEC 61557), CAT safety ratings, site-proof casing (shock resistant, weather sealed to some degree) suitable for field work.

• User friendly controls: test voltage locking, smoothing function for unstable readings, programmable test durations, threshold/alarms, Go/No-Go function for simple assessment.

Applications

The CA6549 is suitable for a variety of industrial and service applications, including but not limited to:

• Preventive maintenance of motors, generators, transformers and high voltage equipment.

• Insulation testing of cables (single-core, multi-layer, composite materials).

• On-site diagnostics and commissioning in power utilities, construction sites, renewable energy installations.

• Quality assurance in manufacturing of electrical machines or components.

• Verification of insulation integrity in high humidity, high temperature or harsh environmental conditions.

• Testing in industrial plants, laboratories, research & development, calibration houses.

Technical Specifications

Package Contents

Typical items included in the package are:

• C.A 6549 Megohmmeter unit (5 kV insulation tester)

• High-voltage safety leads, typically 2 x 3 m with HV plug + HV crocodile clip (red & blue)

• Guarded HV lead(s), possibly black lead, short lead (0.35 m, etc)

• Mains power cable

• Communication lead (RS-232 / for PC/printer)

• User manual(s) (multi-language)

• Optional software (DataView or vendor-proprietary), USB drive or download media (where applicable)

• Protective carrying / site-proof casing / bag

Call to Action

Don’t compromise on safety or precision. For reliable insulation diagnostics, order the Chauvin-Arnoux CA6549 now to ensure your electric assets are protected, reduce downtime, and meet regulatory compliance. Contact us for a quote, demo, or extended support package.