Product Overview

The Epro PR6424/002-010+CON021 combines a PR6424 series 16 mm eddy current sensor with a CON021 eddy current signal converter, forming a complete sensing interface for non-contact measurement of relative movement between a rotating machine component and the stationary probe.

The PR6424/002-010 operates at the machine side of the measurement chain. It generates an electromagnetic field around the sensing area and responds to changes in the conductive target, typically a rotating shaft or other metallic machine component. The CON021 receives the sensor signal and provides the corresponding interface for the machinery monitoring system.

This sensor-and-converter combination is useful where the probe alone is not sufficient for direct integration into the plant monitoring architecture. Keeping the sensing element and signal-conditioning/interface electronics as a matched pair helps establish a defined signal path from the machine to the monitoring system.

Technical Specifications

Product Features

• Combines a PR6424/002-010 eddy current sensor with a CON021 signal converter.
• Uses non-contact electromagnetic sensing for conductive machine targets.
• Suitable for monitoring relative movement between a probe and rotating machinery components.
• Separates the sensing element from the signal conversion and interface stage.
• Supports integration of eddy current measurements into machinery monitoring systems.
• Useful for applications where continuous shaft-related measurement is required.
• Suitable for rotating equipment condition monitoring and machinery protection architectures.
• Provides a complete sensor-to-converter measurement path rather than relying on the probe alone.
• Can be incorporated into established Epro machinery monitoring installations.

Working Principle

The PR6424/002-010 and CON021 operate as two connected stages of the same measurement chain.

1. Electromagnetic field generation

The PR6424 sensor establishes an electromagnetic field in the area immediately in front of its sensing surface. The probe does not need to physically contact the monitored machine component.

2. Interaction with the conductive target

When the probe is positioned near a conductive metallic target, such as a rotating shaft, eddy currents are induced in the target. The electrical response of the sensing circuit changes according to the relationship between the probe and target.

3. Signal conversion

The electrical signal from the PR6424 sensor is transferred to the CON021. The converter provides the required signal-conditioning/interface stage so that the measurement can be incorporated into the wider machinery monitoring system.

4. Monitoring-system integration

The converted measurement is then available to the associated monitoring or control architecture. Changes in the measured shaft-related movement can be observed and evaluated as part of machinery condition monitoring.

Sensor → Electromagnetic sensing → Conductive target interaction → CON021 → Machinery monitoring system

Because the measurement is non-contact, the sensing arrangement can monitor rotating components without introducing mechanical contact between the probe and the shaft.

Role in an Epro Machinery Monitoring Control Architecture

The PR6424/002-010+CON021 occupies the front end of an Epro machinery measurement chain. The sensor establishes the physical measurement relationship with the machine, while the CON021 provides the signal conversion/interface stage before the measurement reaches the monitoring system.

Industrial Applications

Installation and Maintenance

1. Verify that the PR6424/002-010 sensor and CON021 converter are compatible with the intended Epro monitoring architecture before installation.
2. Isolate the relevant machinery and electrical circuits according to the plant maintenance procedure before working on the sensing system.
3. Position the sensor so that its sensing relationship with the conductive machine target matches the applicable installation requirements.
4. Inspect the probe body, sensing surface, cable, and converter connections for mechanical or environmental damage.
5. Keep the sensing area clean and free from contamination that could interfere with the intended probe-to-target relationship.
6. Route the sensor cable away from unnecessary mechanical stress and potential sources of electrical interference.
7. Secure the sensor and associated wiring so that vibration does not cause unintended movement of the measurement arrangement.
8. Verify the connection between the PR6424/002-010 and CON021 before applying operating power to the monitoring system.
9. Check the complete signal path from the sensor through the converter to the monitoring equipment during commissioning.
10. Compare the initial measurement with the expected machine operating condition and investigate abnormal readings before placing the channel into service.
11. During maintenance, check for changes caused by probe mounting, cable condition, connector integrity, or machine mechanical movement.
12. Record the installed sensor, converter, machine location, and monitoring channel information for future troubleshooting and replacement work.

Related Components

Recommended Related Models

Key Advantages

• Combines an eddy current sensing element with a dedicated signal converter.
• Provides a defined measurement path from the rotating machine to the monitoring system.
• Uses non-contact sensing for conductive metallic machine targets.
• Suitable for shaft-related machinery monitoring applications.
• Supports integration with established Epro monitoring architectures.
• Useful for maintenance, condition monitoring, and machinery protection applications.

Technical FAQs

What is the function of the CON021 in this sensor combination?

The CON021 serves as the signal conversion and interface stage associated with the PR6424/002-010 sensor. It allows the sensor measurement to be integrated into the applicable machinery monitoring architecture rather than treating the probe as a standalone component.

Why is an eddy current sensor used for rotating machinery?

Eddy current sensing allows the measurement relationship with a conductive rotating target to be established without physical contact. This makes the technology suitable for monitoring shaft-related movement in rotating equipment.

What should be considered when installing the PR6424/002-010?

The probe-to-target relationship, sensor mounting, cable routing, converter connection, and compatibility with the monitoring system should all be checked. Mechanical vibration and changes in the sensor mounting position should also be considered during commissioning and maintenance.

What can cause an abnormal measurement from the sensor and converter combination?

Potential causes include incorrect probe positioning, changes in the mechanical relationship between the sensor and target, damaged or poorly connected cabling, connector problems, or issues elsewhere in the monitoring signal chain. Troubleshooting should therefore examine the sensor, wiring, CON021 interface, and monitoring input as a complete measurement path.