Product Overview

The Epro PR6424/000-030 16mm Eddy Current Sensor is a non-contact displacement sensor for monitoring the position and movement of rotating machinery components. It measures changes in the distance between the sensor and a conductive target, allowing shaft movement to be monitored without mechanical contact.

The sensor is suited to machinery where continuous measurement of shaft displacement or position is required. Typical equipment includes steam turbines, gas turbines, compressors, pumps, generators, gearboxes, and other rotating machinery.

The PR6424/000-030 can be integrated into a complete machinery monitoring channel with suitable signal-conditioning and monitoring electronics. Depending on the measurement arrangement, its signal can support condition monitoring, alarm generation, and machinery protection functions.

Technical Specifications

Product Features

• 16 mm eddy current sensor for industrial rotating machinery applications.
• Non-contact measurement without physical contact between the sensor and monitored target.
• Suitable for shaft displacement and position measurement.
• Can be incorporated into machinery condition monitoring and protection systems.
• Applicable to turbines, compressors, pumps, generators, and other rotating equipment.
• Supports continuous monitoring of mechanical movement at the measurement point.
• Can be used with suitable signal-conditioning electronics as part of a complete measurement channel.

Working Principle

The PR6424/000-030 uses the eddy current principle to detect the distance between the probe tip and a conductive target. The sensor generates an electromagnetic field, and the electrical response changes as the distance to the target changes.

When the monitored shaft moves, the measurement gap changes accordingly. The resulting sensor signal is passed to associated signal-conditioning electronics and then evaluated by the machinery monitoring system.

A typical measurement path is:

Rotating Shaft → PR6424/000-030 Sensor → Signal Conditioning → Machinery Monitoring System → Alarm / Protection

Accurate probe positioning is essential because the measured displacement depends on the relationship between the sensor and the conductive target.

Role in a Rotating Machinery Control Architecture

Industrial Applications

Installation and Maintenance

1. Install the sensor with the probe tip facing the intended conductive measurement target.
2. Maintain the required sensor-to-target relationship for the selected measurement application.
3. Secure the sensor firmly to prevent unwanted movement caused by machine vibration.
4. Check the mounting arrangement before commissioning the machinery.
5. Route sensor cabling away from strong electromagnetic interference sources where practical.
6. Avoid excessive bending, pulling, or mechanical stress on the sensor cable.
7. Verify all sensor and signal-conditioning connections before starting the monitoring system.
8. Inspect the probe tip periodically for contamination or physical damage.
9. Check the sensor position if the measurement signal changes unexpectedly.
10. Inspect cables and connectors when intermittent or unstable readings occur.
11. Compare unusual displacement trends with actual machinery operating conditions before replacing the sensor.
12. After maintenance, verify the complete measurement channel before returning the equipment to normal operation.

Related Components

Recommended Related Models

Key Advantages

• Non-contact measurement for rotating machinery.
• 16 mm sensor head configuration.
• Suitable for shaft displacement and position monitoring.
• Applicable to continuous machinery monitoring channels.
• Supports machinery protection and condition assessment.
• Suitable for integration with associated signal-conditioning electronics.

Technical FAQs

What is the Epro PR6424/000-030 used for?

The PR6424/000-030 is used for non-contact measurement of displacement and position of conductive targets, particularly rotating machinery shafts and related components.

Can the PR6424/000-030 be used for turbine applications?

Yes. It can be incorporated into turbine monitoring arrangements where shaft displacement or position needs to be measured as part of a machinery condition monitoring or protection system.

Does the PR6424/000-030 require physical contact with the shaft?

No. The eddy current measurement principle allows the sensor to detect changes in the distance to a conductive target without physically contacting the rotating shaft.

What can cause an unstable signal from the PR6424/000-030?

Possible causes include incorrect sensor positioning, loose mounting, damaged cabling, poor connections, electrical interference, or a change in the actual machinery condition. The complete measurement channel should be checked before identifying the sensor itself as the fault.