Chauvin Arnoux: Your Partner for Industrial Performance

When Maintenance Fails, the Consequences Are Far-Reaching

Maintenance failures can lead to:

• Production downtime: Loss of revenue.
• Urgent repairs: Cost 2 to 5 times higher than planned maintenance.
• Damaged machinery: Sometimes irreversibly.
• Safety risks: Incidents, injuries.
• Lost customers: Delays, failure to meet deadlines.
• Quality affected: Scrap, non-compliance.

Impact of Maintenance Failures: Up to 10% of revenue lost.

Predictive maintenance: An effective solution. 90% operational revenue, 10% loss.

Tools designed to last. Designed to perform. Made by Chauvin Arnoux.

Electrical Network Analyzer: Qualistar+ CA 8336

Analyse, diagnose, optimise!

The Qualistar+ CA 8336 is the benchmark tool for maintenance and testing services for industrial electrical installations. It provides comprehensive, real-time analysis of power quality, enabling you to control your electrical networks and guarantee service continuity.

An essential ally for your industrial maintenance tasks:

With its intuitive ergonomics and user-friendly interface, the CA 8336 is perfectly suited to maintenance requirements. It supports you in all your electrical diagnostics with high accuracy.

With the CA 6472, you can:

• Quickly identify anomalies: harmonics, imbalances, dips and voltage swells, etc.
• Accurately diagnose the causes of disturbances or malfunctions.
• Precisely evaluate loads and requirements for optimal system sizing.
• Perform a complete energy audit to identify areas for optimisation.

To find out more about the CA 8336, scan the QR code or visit page 31 of the catalogue.

Megohmmetry: The Basics

A megohmmeter is an instrument used to measure electrical insulation resistance, particularly in motors, cables, transformers, etc. It sends a high voltage (500 V, 1 kV, 5 kV, etc.) to detect current leakage through the insulation.

The DAR, PI and DD indices are time ratios based on this measurement, used to assess the condition of the insulation over time (and therefore its cleanliness, humidity or degradation).

1. DAR (Dielectric Absorption Ratio)

DAR = Insulation resistance at 1 min / at 30 s

• Used to detect the presence of moisture or contamination.
• Used for small equipment or quick tests.
• Typical value: ≥ 1.4: good insulation. < 1.25: insulation questionable.

2. PI (Polarization Index)

PI = Resistance at 10 min / at 1 min

• Evaluates the capacity of the insulator to 'polarise', i.e. to block leakage currents over time.
• More reliable than DAR for thick insulation (e.g. high-voltage motors, transformers).
• Typical value: ≥ 2.0: good insulation. < 1.0: degraded or damp.

3. DD (Dielectric Discharge)

• Less common than PI or DAR.
• Measures the depolarisation current once the voltage has been removed.
• Used to detect conductive contamination or ageing of the insulation, even if PI is good.
• Reported in µA or residual current.
• Used in advanced analysis tests, particularly for transformers.

Why measure these ratios? Unlike a simple insulation resistance measurement (e.g. 500 MΩ), these ratios allow you to:

• Detect slow or hidden degradation.
• Take into account the effects of temperature, humidity and dirt.
• Make comparisons over time (preventive maintenance).

5 kV Insulation Tester: CA 6549

Test insulation, secure your installations.

In industrial environments, insulation failure can cause production stoppages, critical breakdowns or safety incidents. The CA 6549 insulation tester, rated up to 5 kV, is designed to meet these challenges with accuracy, robustness and reliability.

The CA 6549 is much more than just an insulation tester. It provides you with comprehensive, reliable and long-lasting analysis of your high-voltage equipment. Thanks to its advanced technology, it is an essential tool for preventive and predictive maintenance.

Designed for maintenance professionals:

• Anticipate invisible faults: the CA 6549 can detect gradual or hidden insulation deterioration before it becomes critical.
• Real conditions taken into account: humidity, temperature; the CA 6549 provides reliable results even in harsh industrial environments.
• Preventive maintenance made easy: track measurements over time and identify signs of ageing before an incident occurs.

With the CA 6549, you move from a repair mindset to a proactive strategy. Fewer breakdowns. Greater availability.

To find out more about the CA 6549, scan the QR code or visit page 22 of the catalogue.

Micro-ohmmeter: CA 6240

Accuracy at the heart of your electrical maintenance.

The CA 6240 is a precision micro-ohmmeter, essential for all industrial maintenance operations requiring the measurement of very low electrical resistances. Compact, robust and easy to use, it is an effective companion in the field, workshop or laboratory.

An essential tool for industrial maintenance:

1. Testing electrical connections

• Detecting poor contacts on terminal blocks, busbars, cable junctions, etc.
• Identifying potential hot spots linked to abnormal contact resistance.
• Checking tightness after assembly or servicing - essential for preventing future faults.

2. Maintenance of power equipment

• Accurate analysis of contacts on circuit breakers, isolating switches and contactors.
• Detection of internal component wear without dismantling.
• Prevention of faults related to high contact resistance that can lead to critical overheating.

The CA 6240 is your warranty for reliable connections, secure equipment and optimised preventive maintenance. An essential investment to improve the availability and performance of your electrical installations.

To find out more about the CA 6240, scan the QR code or visit page 29 of the catalogue.

Earth Tester: CA 6472

Control your earthing, secure your installations.

In any industrial environment, reliable earthing is essential to guarantee personnel safety, protect equipment and ensure continuity of operation. The CA 6472, a versatile and high-performance earth measurement instrument, allows you to diagnose, test and anticipate any earthing faults.

Why integrate the CA 6472 into your maintenance strategy?

1. Verification of earth connection effectiveness

• Accurately measure earth resistance to ensure compliance with safety thresholds (generally required to be < 10 Ω).
• Perform periodic tests in accordance with standards such as NFC 15-100 and IEC 60364.
• Validate the compliance of new or renovated installations.

2. Prevention of electrical risks

• Personal safety: a faulty earth connection can prevent differential circuit breakers from working properly.
• Equipment protection: against atmospheric voltage swells or leakage currents.
• Reduced fire risk: by correctly evacuating earth faults.

3. Monitoring over time for predictive maintenance

• Monitor changes in earth resistance to detect invisible damage: corrosion, broken conductors, poor burial, etc.
• Anticipate interventions before any critical failure occurs and guarantee business continuity.

With the CA 6472, you move from simple compliance testing to a genuine risk prevention strategy. Safety, reliability, performance: good earth starts with good measurement.

To find out more about the CA 6472, scan the QR code or visit page 26 of the catalogue.

Turn Maintenance into a Performance Lever

Chauvin Arnoux gives you its expertise to help you transform your maintenance constraints into opportunities for optimisation.

• Avoid hidden costs
• Gain reliability
• Invest in prevention for a more profitable and safer industry

Request a demonstration from a professional. Your distributor.

To find out more about our maintenance instruments, scan the QR code!