Product Overview

The Epro PR6423/019-111+CON031 8mm Eddy Current Sensor+Eddy Current Signal Converter combines an eddy current sensor with a CON031 signal converter for non-contact measurement of conductive targets in rotating machinery applications. The combination covers both the sensing point and the associated signal-conversion stage of the measurement channel.

The PR6423/019-111 sensor is positioned close to a conductive shaft or target. Relative movement between the sensing head and target changes the eddy current response, which is then handled by the CON031 converter. This arrangement allows mechanical movement to be represented as an electrical signal for downstream monitoring equipment.

The combined configuration is suited to machinery where shaft displacement, axial position, radial movement, or vibration-related movement needs to be monitored without physical contact. Typical installations include turbines, compressors, generators, motors, pumps, and other critical rotating equipment.

For maintenance work, the sensor and converter should be evaluated together with the complete monitoring channel. Probe positioning, target characteristics, installation gap, mechanical stability, wiring, converter operation, and receiving equipment all influence measurement performance.

Technical Specifications

Product Features

• Combined PR6423 Series eddy current sensor and CON031 signal converter.
• Non-contact detection of movement relative to a conductive target.
• Supports shaft displacement and position measurement.
• Suitable for radial and axial movement monitoring.
• Can be used for vibration-related monitoring of rotating machinery.
• Provides a dedicated signal-conversion stage for the associated sensor.
• Suitable for integration with compatible machinery monitoring equipment.
• Applicable to turbines, compressors, generators, motors, pumps, and other rotating machinery.
• Useful for replacement of compatible sensor and converter combinations.

Working Principle

The PR6423/019-111 sensing element generates an electromagnetic field at the monitored target. When a conductive shaft moves relative to the sensing head, the eddy current response changes with the target-to-sensor relationship.

The CON031 Eddy Current Signal Converter receives the sensor response and converts it into a signal suitable for the associated monitoring system. The downstream equipment can then use the measurement for shaft position, displacement, or vibration-related monitoring functions.

Rotating Shaft / Conductive Target → PR6423/019-111 Sensor → CON031 Signal Converter → Monitoring System → Alarm / Protection

The sensor measures relative movement rather than independently determining machine condition. Any unwanted movement of the probe mounting can therefore influence the signal. Proper mechanical installation and correct sensor-to-target positioning are essential to obtain a meaningful measurement.

Role in an Epro Eddy Current Monitoring Architecture

The combined PR6423/019-111+CON031 occupies both the sensing and signal-conversion stages of the machinery monitoring channel. The sensor detects the physical change at the monitored target, while the converter prepares the resulting response for the receiving monitoring equipment.

Rotating Machinery → PR6423/019-111 → CON031 → Monitoring Input → Machinery Protection / Control

The sensor, converter, and monitoring input should be checked as a complete signal path when troubleshooting abnormal readings.

Industrial Applications

Installation and Maintenance

1. Confirm the complete PR6423/019-111+CON031 configuration before installation.
2. Verify compatibility between the PR6423 sensor, CON031 converter, monitoring input, and associated wiring.
3. Isolate the monitored machinery and follow applicable safety procedures before working near rotating equipment.
4. Inspect the sensor head, converter, connectors, and cable assembly for visible damage.
5. Ensure the sensor mounting arrangement is mechanically secure and resistant to unwanted movement.
6. Position the sensing head correctly relative to the conductive shaft or target surface.
7. Establish the required sensor-to-target gap according to the applicable monitoring-system requirements.
8. Route the sensor wiring to minimize mechanical stress, excessive bending, and avoidable electrical interference.
9. Check all sensor and converter connections for secure attachment and contamination.
10. Verify the CON031 output and receiving monitoring input after commissioning the measurement channel.
11. If the signal becomes unstable, check the probe position, target condition, cable, converter, and monitoring input before replacing components.
12. After replacement, verify the complete sensor-to-monitoring path and confirm normal machinery monitoring operation before returning the equipment to service.

Compatible System Components

Recommended Related Models

Key Advantages

• Combines an 8mm eddy current sensor with a CON031 signal converter.
• Provides non-contact measurement of conductive shaft movement.
• Supports shaft displacement, position, and vibration-related monitoring.
• Integrates sensing and signal conversion into one defined measurement configuration.
• Suitable for continuous monitoring of critical rotating machinery.
• Applicable to turbines, compressors, generators, motors, pumps, and other rotating equipment.
• Supports connection to compatible machinery monitoring and protection systems.

Technical FAQs

What is the advantage of using the PR6423/019-111 with a CON031 converter?

The combination covers both the eddy current sensing stage and the associated signal-conversion stage. This gives the monitoring channel a defined sensor-to-converter arrangement rather than requiring the components to be selected independently.

Why can a stable sensor still produce an unstable monitoring signal?

The issue may originate from the probe mounting, target movement, sensor-to-target gap, cable connections, CON031 converter, or receiving monitoring input. The complete signal path should be checked before identifying the sensor as the failed component.

What type of target is required for this eddy current sensor?

The sensing principle requires a suitable conductive target. Target material, geometry, surface condition, and the relative position of the target and sensing head should be considered when establishing or modifying an installation.

Should the PR6423/019-111+CON031 be replaced as a complete combination?

When servicing an existing installation, the complete part designation should first be compared with the installed configuration. If either the sensor or converter is replaced separately, compatibility and the resulting measurement characteristics should be verified before returning the monitoring channel to service.