Chauvin Arnoux CA6545 5 kV Digital Insulation Tester / Megohmmeter

Overview
The Chauvin Arnoux CA6545 is a rugged, site-proof digital megohmmeter designed for both quantitative and qualitative insulation testing. With high measurement ranges, multiple test voltage options, and built-in advanced diagnostic functions (DAR, PI, DD), it serves as a powerful tool for preventive maintenance and safety assurance in industrial, utility, and electrical systems. Its casing is constructed to withstand harsh field conditions, making it suitable for on-site testing of large electrical machines, switchgear, generators, transformers, cables, and motors.

Key Features

• Fixed test voltages: 500 V, 1,000 V, 2,500 V, 5,000 V

• Programmable test voltage: spans from 40 V to 5,100 V (increments of 10 V or 100 V)

• Wide insulation resistance measurement: 10 kΩ to 10 TΩ depending on voltage level

• Automatic calculation of quality ratios: DAR (Dielectric Absorption Ratio), PI (Polarization Index), DD (Dielectric Discharge)

• Large backlit LCD with digital reading and bar-graph visualization

• Programmable test duration, test voltage locking, smooth display filtering, programmable alarms

• Capacitance measurement from ~0.001 µF up to ~49.99 µF

• Leakage / residual current measurement included

• Power: NiMH rechargeable battery; long battery life under typical use (about 30 days with standard daily testing)

• Rugged / safety / environmental: IP53 site-proof protective casing, complies with IEC 61010-1 Cat III 1,000 V / Cat I 2,500 V and IEC 61557 standards

Applications

The CA6545 is suitable for:

• Preventive maintenance and diagnostics on transformers, motors, and generators

• Insulation testing of power, medium-voltage, and high-voltage cables

• Electrical safety checks in switchgear and substations

• Verification of insulation quality and aging (using PI, DAR)

• Fault detection in heterogeneous or multi-layer insulation systems (DD)

• Verification after manufacturing, installation, or repair

Technical Specifications

Package Contents

Typically includes:

• CA6545 unit (megohmmeter) in protective carrying case

• Test leads: at least 2 high-voltage safety leads (~3 m) with HV plugs and crocodile clips (red & blue)

• Guarded safety lead(s) (black) for rear-connection, plus shorter leads (~0.35 m) as probes

• Mains power cable for AC operation / battery charging

• User manual / quick-start guide

• Bag or shoulder strap / transport bag

Call to Action

Don’t compromise on safety or accuracy. If you manage electrical systems, transformers, or high-voltage insulation, the Chauvin Arnoux CA6545 offers you precision, rugged build, and advanced diagnostic features all in one instrument. Add to cart now or contact our sales team for quotes, bulk pricing, or demo units.

【FAQ】

1. Q: What is the maximum insulation resistance the CA6545 can measure?
   A: Up to 10 TΩ depending on test voltage.

2. Q: What test voltages are supported and is the voltage adjustable?
   A: Four fixed voltages (500 V, 1,000 V, 2,500 V, 5,000 V) plus programmable voltage between 40 V and 5,100 V in steps of 10 V or 100 V.

3. Q: Does CA6545 support quality analysis like PI, DAR, DD?
   A: Yes, it automatically computes DAR, PI, and DD for assessing insulation condition.

4. Q: What is its safety rating and how rugged is it for field use?
   A: Complies with IEC 61010-1 (Cat III 1,000 V / Cat I 2,500 V) and IEC 61557, with IP53 site-proof casing.

5. Q: How long does the battery last under normal usage?
   A: About 30 days under typical preventive maintenance use.