Product Overview

The Epro PR6424/002-000 is a 16 mm eddy current sensor used for non-contact measurement in rotating machinery monitoring applications. It belongs to the EPRO PR6424 sensor family and serves as the sensing element between the monitored machine component and the associated eddy current measuring electronics.

The probe operates by detecting changes in the electromagnetic interaction between its sensing element and a conductive metallic target. In a typical installation, the sensor is positioned close to a shaft or another suitable machine surface without making physical contact with the rotating component.

The PR6424/002-000 can be integrated into machinery protection and condition-monitoring arrangements for equipment such as turbines, compressors, generators, and pumps. Its role is concentrated at the machine interface, while signal processing and monitoring functions are handled by the associated electronics and monitoring system.

Technical Specifications

Product Features

• Uses eddy current technology for non-contact measurement of conductive machine targets.
• Suitable for rotating machinery monitoring applications.
• Supports measurement of shaft position and relative movement.
• Operates without direct mechanical contact with the monitored rotating component.
• Can be integrated with compatible EPRO measuring electronics.
• Suitable for turbine, compressor, generator, pump, and other rotating equipment.
• Provides a sensing interface within a complete machinery monitoring chain.
• Supports continuous observation of machine movement when integrated into an appropriate monitoring system.
• Suitable for industrial machinery protection and condition-monitoring installations.

Working Principle

The PR6424/002-000 generates an electromagnetic field around its sensing area. When positioned near a conductive metallic target, the field induces eddy currents within the target material.

Changes in the distance or relative position between the probe and target alter the electrical response of the sensing circuit. Compatible EPRO measuring electronics interpret this response and provide the corresponding measurement to the machinery monitoring system.

PR6424/002-000 → Conductive shaft / target → Eddy current interaction → Measuring electronics → Machinery monitoring system

The probe operates without physical contact with the rotating target. This allows the sensor to monitor relative movement while avoiding mechanical wear that would occur with a contact-based sensing arrangement.

The sensor forms only one part of the complete measurement chain. Correct probe positioning, target condition, cable integrity, measuring electronics, and monitoring-system configuration all contribute to the quality and usefulness of the final measurement.

Role in an EPRO Rotating Machinery Monitoring Architecture

The PR6424/002-000 occupies the sensing layer of an EPRO eddy current measurement architecture. It detects changes at the machine interface and supplies the resulting sensor response to the associated measuring electronics.

Industrial Applications

Installation and Maintenance

1. Confirm that the PR6424/002-000 is compatible with the intended EPRO measuring electronics and monitoring arrangement.
2. Review the applicable machinery drawings and sensor installation documentation before mounting the probe.
3. Isolate the relevant equipment and follow the plant’s mechanical and electrical safety procedures before installation.
4. Select a mounting position that establishes the required relationship between the probe and conductive target.
5. Clean the sensing area and remove contamination that could interfere with the installation.
6. Inspect the sensor body, sensing end, and cable connection for visible damage before installation.
7. Route the sensor cable away from excessive tension, sharp edges, and unnecessary mechanical movement.
8. Secure the probe firmly so that operating vibration does not unintentionally change its installed position.
9. Verify the connection between the sensor and compatible measuring electronics before energizing the monitoring circuit.
10. Check the sensor response during commissioning and confirm that it changes appropriately with the monitored machine movement.
11. If readings become unstable or abnormal, inspect the probe position, target surface, cable condition, and associated measuring electronics.
12. Record the sensor model and installation location for future machinery maintenance and condition-monitoring activities.

Related Components

Recommended Related Models

Key Advantages

• Provides non-contact sensing for rotating machinery.
• Uses eddy current measurement for conductive metallic targets.
• Supports shaft position and relative movement monitoring.
• Avoids physical contact between the sensor and monitored rotating component.
• Integrates into compatible EPRO measuring and monitoring architectures.
• Suitable for turbine, compressor, generator, pump, and other rotating equipment applications.

Technical FAQs

What is the main application of the PR6424/002-000?

The PR6424/002-000 is an eddy current sensor used for non-contact measurement of relative movement between the probe and a conductive metallic target. It can be incorporated into rotating machinery monitoring and protection systems.

How does the sensor detect movement without contacting the machine shaft?

The probe generates an electromagnetic field that interacts with the conductive target. Changes in the probe-to-target relationship alter the eddy current response, which is detected and processed by the associated measuring electronics.

What components are required around the sensor?

The sensor normally forms part of a complete measurement chain that includes compatible EPRO measuring electronics, appropriate cabling and mounting hardware, the conductive machine target, and a machinery monitoring or protection system.

What should be checked when commissioning the PR6424/002-000?

The probe mounting, sensor-to-target relationship, target surface, cable connections, and associated measuring electronics should be checked. The sensor response should also be verified during commissioning before relying on the measurement for machinery monitoring.