Product Overview

The Epro PR6423/015-010+CON021 combines an 8 mm eddy current sensor with an eddy current signal converter for non-contact monitoring of relative shaft movement. The PR6423 sensor provides the sensing point, while the CON021 handles the associated signal-conditioning function before the measurement is transferred to downstream monitoring equipment.

This combination is suited to rotating machinery where shaft displacement, radial movement, axial position, or vibration-related motion needs to be monitored continuously. The non-contact sensing method allows the probe to operate near the conductive target without mechanically contacting the rotating component.

In operation, the PR6423/015-010 sensor is installed toward the monitored shaft or another suitable conductive target. Movement of the target changes the sensor response, and the CON021 processes this response into a usable signal for the machinery monitoring system.

The combined configuration is useful in turbine, compressor, pump, generator, motor, and other rotating equipment monitoring arrangements. Correct probe positioning, installation gap, wiring, and compatibility between the sensor, CON021 converter, and monitoring equipment are important during commissioning and replacement.

Technical Specifications

Product Features

• Combined PR6423 8 mm eddy current sensor and CON021 signal converter
• Non-contact sensing of conductive shaft movement
• Suitable for shaft displacement and vibration-related measurements
• Integrates the sensing and signal-conditioning stages of the measurement chain
• Suitable for continuous rotating machinery monitoring
• Applicable to turbines, compressors, pumps, generators, and motors
• Supports connection to compatible machinery monitoring equipment
• Useful for machinery protection and condition monitoring systems

Working Principle

The PR6423/015-010 sensor detects changes in the distance between the sensor head and a conductive target using an eddy current sensing principle. When the shaft moves relative to the stationary probe, the electromagnetic response of the sensing circuit changes.

The CON021 Eddy Current Signal Converter receives the sensor response and conditions it for use by the monitoring system. This allows the physical shaft movement detected at the probe to be represented as an electrical measurement suitable for downstream machinery monitoring.

Conductive Shaft / Target → PR6423/015-010 Sensor → CON021 Signal Converter → Machinery Monitoring System → Alarm / Protection

The two components perform complementary functions. The sensor detects the physical movement, while the converter processes the sensor response. Alarm evaluation, machine protection, and shutdown decisions remain functions of the downstream monitoring and protection system.

Role in an Eddy Current Machinery Monitoring Architecture

The PR6423/015-010+CON021 occupies the sensing and signal-conditioning stages of the machinery monitoring chain. It connects mechanical shaft movement with the electrical measurement interface required by the monitoring system.

Rotating Shaft → PR6423/015-010 → CON021 → Monitoring Module → Alarm / Trip → Machine Protection

This arrangement places signal conditioning directly after the sensing stage, allowing the resulting measurement to be transferred to compatible machinery monitoring equipment.

Industrial Applications

Installation and Maintenance

1. Verify the complete PR6423/015-010+CON021 model designation before installation.
2. Confirm that the sensor and CON021 converter match the intended measurement arrangement.
3. Isolate the monitored machinery before installing or replacing the sensing assembly.
4. Inspect the PR6423 sensor head for physical damage or contamination.
5. Check the probe mounting position relative to the conductive shaft or target.
6. Establish the probe-to-target gap according to the requirements of the associated measurement system.
7. Maintain correct alignment between the sensor and monitored target.
8. Inspect the sensor cable, converter connections, and terminations for damage or looseness.
9. Verify that the CON021 output is correctly connected to the downstream monitoring equipment.
10. Check the conditioned measurement signal during commissioning and confirm stable operation.
11. Investigate abnormal readings by checking probe position, target condition, wiring, converter operation, and monitoring inputs.
12. After replacement, verify the complete sensor-to-converter-to-monitoring chain before returning the machinery to normal service.

Compatible System Components

Recommended Related Models

Key Advantages

• Combines an 8 mm eddy current sensor with a CON021 signal-conditioning interface.
• Provides non-contact measurement of conductive shaft movement.
• Suitable for displacement, position, and vibration-related monitoring.
• Integrates sensing and signal conditioning into a defined measurement chain.
• Suitable for continuous machinery monitoring and protection architectures.
• Applicable to critical rotating equipment in industrial and power-generation facilities.

Technical FAQs

What does the PR6423/015-010 contribute to the combined assembly?

The PR6423/015-010 provides the physical eddy current sensing function. It detects changes in the relationship between the sensor and conductive target, while the CON021 processes the resulting sensor response.

What is the role of the CON021 signal converter?

The CON021 conditions the response from the PR6423 sensor so that the measurement can be transferred to compatible downstream machinery monitoring equipment.

What should be checked when the combined assembly gives an incorrect displacement signal?

Check the probe-to-target gap, alignment, mounting stability, target condition, sensor wiring, CON021 connections, and monitoring-system input. A fault at any stage can affect the final measurement.

Is the PR6423/015-010+CON021 suitable as a complete machinery protection device?

No. The combination provides the sensing and signal-conditioning stages of the measurement chain. Alarm evaluation, protection logic, and shutdown functions require compatible downstream machinery monitoring and protection equipment.