Product Overview

The Epro PR6423/010-111+CON031 combines an 8 mm eddy current sensor with an eddy current signal converter for non-contact measurement on rotating machinery. The sensor is suited to applications where shaft movement, displacement, or vibration must be monitored without mechanical contact between the probe and rotating target.

In a typical machinery monitoring installation, the PR6423/010-111 sensor is positioned toward the rotating shaft while the CON031 signal converter handles the probe signal interface. This arrangement is commonly used on turbines, compressors, pumps, generators, and other rotating equipment where continuous shaft-condition information is required.

The non-contact measurement principle allows the sensor to monitor relative shaft movement without adding mechanical loading to the rotating assembly. Correct probe positioning and stable cabling are particularly important when the sensor is used for vibration or shaft-position measurements.

The combined sensor and converter arrangement can be integrated with machinery monitoring and protection equipment to support condition monitoring, alarm processing, and equipment protection functions.

Technical Specifications

Product Features

• 8 mm eddy current sensor for non-contact measurement of rotating machinery.
• Includes the CON031 eddy current signal converter as part of the supplied assembly.
• Suitable for shaft displacement and relative movement monitoring.
• Non-contact sensing avoids mechanical contact with the rotating shaft.
• Applicable to machinery condition monitoring and protection systems.
• Suitable for continuous monitoring applications on critical rotating equipment.
• Compact sensor construction supports installation in areas with limited probe access.
• Can be used as part of a complete eddy current measurement chain.
• Supports measurement applications where stable probe positioning is required.
• Useful for turbine, compressor, pump, generator, and other rotating machinery systems.

Working Principle

The PR6423/010-111 operates using the eddy current measurement principle. The probe generates an electromagnetic field toward the conductive rotating target. Changes in the distance between the probe and shaft alter the electrical characteristics of the sensing circuit, allowing shaft displacement or relative movement to be detected without physical contact.

The CON031 signal converter interfaces with the sensor and converts the probe signal into a usable measurement signal for the downstream monitoring equipment. The resulting signal can then be processed by a machinery monitoring or protection system.

Rotating Shaft → PR6423/010-111 Sensor → CON031 Signal Converter → Machinery Monitoring System → Alarm / Protection / Monitoring

For vibration monitoring, the probe installation position determines the mechanical movement being observed. Consistent probe-to-target positioning is therefore important when commissioning or replacing the sensor.

Role in a Rotating Machinery Monitoring Architecture

The sensor assembly forms the field measurement section of an eddy current monitoring chain. It detects shaft movement directly at the machine, while the signal converter provides the interface between the sensing element and the monitoring system.

Rotating Machine → Eddy Current Sensor → CON031 Converter → Monitoring Module → Protection / Control System

Industrial Applications

Installation and Maintenance

1. Install the probe according to the mechanical arrangement of the monitored shaft and target surface.
2. Maintain the required probe-to-target relationship throughout the operating range.
3. Secure the sensor mounting to prevent movement caused by machine vibration.
4. Route the sensor cable separately from high-power cables where practical.
5. Avoid excessive bending or mechanical stress on the sensor cable.
6. Check connector and terminal conditions before commissioning.
7. Verify the CON031 signal converter connections against the monitoring system wiring arrangement.
8. Confirm that the monitoring system receives a stable signal after installation.
9. Compare sensor readings with known machine operating conditions during commissioning.
10. Inspect the probe mounting and cable routing during scheduled machinery maintenance.
11. Investigate sudden signal changes before assuming that the rotating machine itself has developed a fault.
12. When replacing the sensor assembly, verify the model, sensing arrangement, converter connection, and monitoring-system configuration before returning the equipment to service.

Related Components

Recommended Related Models

Key Advantages

• Non-contact measurement eliminates physical contact with the rotating shaft.
• 8 mm probe configuration suits rotating machinery measurement applications.
• Integrated PR6423/010-111 + CON031 arrangement simplifies the sensor-to-converter measurement chain.
• Suitable for shaft displacement, relative movement, and vibration monitoring.
• Applicable to machinery protection and condition monitoring systems.
• Practical for critical rotating equipment where continuous shaft information is required.

Technical FAQs

What does the CON031 add to the PR6423/010-111 sensor assembly?

The CON031 serves as the signal converter/interface associated with the eddy current sensor. It allows the sensor measurement to be conditioned and transferred to the downstream machinery monitoring equipment in a usable form.

What should be checked if the measured shaft signal becomes unstable?

Start with the mechanical probe installation, probe-to-shaft relationship, sensor cable, connectors, and CON031 connections. If these are satisfactory, check whether the instability follows actual machine vibration or shaft movement rather than assuming that the sensor is defective.

Can this sensor assembly be used for shaft displacement monitoring?

Yes. The PR6423/010-111 uses non-contact eddy current measurement and can be applied to monitoring relative movement between the probe and a conductive rotating shaft. The exact measurement application depends on the installation arrangement and the monitoring system receiving the signal.

What should be verified before replacing a PR6423/010-111+CON031 assembly?

Verify the complete model identification, sensor configuration, probe arrangement, converter interface, cable connections, and the input requirements of the existing machinery monitoring system. The replacement should also be checked against the original installation position so that the measurement characteristics remain consistent.