Product Overview

The Epro PR6423/10R-111+CON031 combines an 8 mm PR6423 eddy current sensor with a CON031 signal converter to form a complete sensing and signal-conditioning channel for rotating machinery monitoring. The sensor measures relative movement between the probe and a conductive shaft or target without physical contact.

The PR6423/10R-111 sensor is installed close to the monitored mechanical target, while the CON031 handles the signal-conditioning stage between the sensor and the downstream monitoring equipment. This arrangement is suitable for applications where shaft displacement, axial position, radial movement, or vibration-related motion needs to be transferred into a usable monitoring signal.

The combined configuration is useful on turbines, compressors, generators, motors, pumps, and other rotating equipment. Keeping the sensor and converter as a defined combination also simplifies identification of the intended measurement channel when maintaining an existing Epro monitoring installation.

Measurement performance depends on more than the probe itself. Probe alignment, target material and surface condition, installation gap, mechanical stability, cable condition, converter operation, and receiving-system compatibility should all be considered when commissioning or troubleshooting the channel.

Technical Specifications

Product Features

• Combined PR6423 8 mm eddy current sensor and CON031 signal converter.
• Supports non-contact measurement of conductive rotating machinery targets.
• Suitable for shaft displacement, position, and vibration-related movement monitoring.
• Integrates sensing and signal-conditioning functions into a defined measurement channel.
• Applicable to turbines, compressors, generators, motors, pumps, and other rotating equipment.
• Suitable for continuous machinery condition-monitoring installations.
• Can be used as part of machinery alarm and protection measurement systems.
• Useful for replacement of compatible Epro PR6423 measurement channels.
• Requires matching of the sensor, converter, cable arrangement, and receiving monitoring equipment.

Working Principle

The PR6423/10R-111 sensor generates an electromagnetic field around the sensing area. When a conductive shaft or target moves relative to the probe, the eddy current response changes according to the distance between the sensor and target.

The resulting sensor signal is passed to the CON031 signal converter, which performs the associated signal-conditioning function before the measurement reaches the monitoring system. The downstream equipment can then use the conditioned signal to evaluate shaft position, displacement, or vibration-related movement.

Conductive Shaft / Target → PR6423/10R-111 Sensor → CON031 Signal Converter → Monitoring Input → Machinery Monitoring System → Alarm / Protection

The measurement channel depends on the mechanical and electrical relationship between all stages. Incorrect probe positioning, unstable mounting, unsuitable target conditions, damaged cabling, converter faults, or an incompatible monitoring input can all produce abnormal measurement behavior.

Role in an Epro Eddy Current Monitoring Architecture

The PR6423/10R-111+CON031 occupies the field sensing and signal-conditioning portion of an Epro eddy current monitoring system. The PR6423 sensor establishes the non-contact measurement point, while the CON031 prepares the resulting signal for the receiving monitoring equipment.

Rotating Shaft → PR6423/10R-111 → CON031 → Monitoring Input → Machinery Monitoring System → Alarm / Protection

The sensor and converter form a defined measurement combination, but the complete output interface should still be checked against the receiving monitoring system before installation.

Industrial Applications

Installation and Maintenance

1. Verify the complete PR6423/10R-111+CON031 part number before installation or replacement.
2. Confirm that the PR6423 sensor, CON031 converter, and receiving monitoring equipment are compatible with the existing measurement channel.
3. Isolate the rotating equipment and follow the applicable site safety procedure before working on the sensing installation.
4. Inspect the sensor tip, housing, converter, and accessible cable connections for physical damage or contamination.
5. Confirm that the probe mounting arrangement allows the sensor to be positioned correctly relative to the conductive target.
6. Establish the required probe-to-target relationship according to the applicable Epro measurement-system requirements.
7. Check probe alignment and ensure that the mounting structure remains secure during machine operation.
8. Route sensor and converter wiring to minimize mechanical stress, excessive bending, heat exposure, and avoidable electrical interference.
9. Verify the sensor-to-CON031 connection and confirm that all terminations are correctly seated.
10. Check the conditioned measurement output after installation and compare the signal with expected machine operating conditions.
11. If abnormal readings occur, inspect the probe position, target surface, cabling, converter operation, and monitoring input before replacing the sensor.
12. After replacement, perform a complete measurement-channel and monitoring-system functional test before returning the machinery to normal operation.

Compatible System Components

Recommended Related Models

Key Advantages

• Combines an 8 mm PR6423 eddy current sensor with a CON031 signal converter.
• Provides a defined non-contact measurement path for compatible monitoring equipment.
• Supports shaft position, displacement, and vibration-related monitoring.
• Suitable for critical rotating machinery applications.
• Integrates sensor and signal-conditioning stages within one configured channel.
• Useful for replacement and maintenance of compatible Epro eddy current monitoring installations.

Technical FAQs

What is the advantage of using the PR6423/10R-111 with a CON031 converter?

The combination establishes both the non-contact sensing stage and the associated signal-conditioning stage as one defined measurement channel. This can simplify installation and maintenance when the receiving monitoring equipment is matched to the complete configuration.

How should the probe be positioned relative to the monitored shaft?

The probe must be mounted so that its sensing relationship with the conductive target remains within the applicable measurement requirements. Alignment, mechanical stability, target surface condition, and the required probe-to-target relationship should all be checked during commissioning.

What could cause an unstable signal even when the PR6423 sensor is functioning?

An unstable signal can result from probe movement, incorrect target relationship, damaged or poorly connected cabling, converter problems, electrical interference, or an issue at the receiving monitoring input. The complete measurement chain should be checked before replacing the sensor.

When replacing a PR6423/10R-111+CON031, can the sensor and converter be substituted independently?

Independent substitution should only be made after confirming the compatibility of the replacement components with the existing measurement architecture. The sensor configuration, converter type, cable arrangement, and downstream monitoring input should be considered as one complete channel.