Epro PR6423/002-041 Eddy Current Displacement Probe

Product Overview

The PR6423/002-041 is a non-contact eddy current displacement probe manufactured by Epro (Emerson), developed for precise monitoring of shaft movement in high-speed rotating machinery. It is designed for integration into vibration protection systems where accurate measurement of shaft vibration and axial position is required.

This probe is widely applied in turbomachinery environments and is compatible with standard Epro signal conditioning and monitoring platforms.

Operating Principle

The sensor operates using eddy current technology, generating a high-frequency electromagnetic field at the probe tip. Changes in the distance between the probe and conductive target surface are converted into proportional electrical signals representing shaft displacement and vibration.

This non-contact method eliminates mechanical wear and ensures stable long-term measurement performance.

Technical Specifications

Model: PR6423/002-041
Manufacturer: Epro (Emerson)
Product Type: Eddy Current Displacement Probe

Measurement Function: Shaft vibration, displacement, and position monitoring
Operating Principle: Eddy current proximity sensing

Measurement Range: Typically up to ±2 mm (depends on system calibration and target material)
Frequency Response: Up to 10 kHz

Cable Specification:

• Length: 2 meters (code 002)

• Connector Type: Industrial connector variant 041

Sensor Construction:

• Rugged probe body for industrial environments

• High temperature and vibration resistant materials

Operating Conditions:

• Suitable for continuous operation in harsh mechanical environments

• Resistant to EMI and electrical noise

System Compatibility:

• Compatible with Epro CON0xx signal converters

• Works with MMS and MMA series vibration monitoring modules

• Designed for API 670 aligned protection systems

Engineering Characteristics

• High-resolution non-contact displacement measurement

• Stable performance in high-speed rotating machinery

• Long-term durability with no mechanical contact wear

• Compatible with standardized industrial monitoring architectures

• Designed for precise shaft vibration trend analysis

• Suitable for continuous condition monitoring systems

Application Areas

• Steam and gas turbine shaft monitoring

• Centrifugal and axial compressors

• Industrial pump systems

• Marine propulsion and auxiliary machinery

• Power generation rotating equipment

• Predictive maintenance and vibration diagnostics systems

FAQ

What does this probe measure?
It measures shaft displacement and vibration using eddy current sensing technology.

Does it require physical contact with the shaft?
No, it operates completely without contact.

What systems can it be connected to?
It is compatible with Epro CON series converters and MMS/MMA monitoring systems.

Is it suitable for high-speed machinery?
Yes, it is designed for high-frequency response up to 10 kHz.

What factors affect accuracy?
Probe gap distance, target material, and proper installation alignment are critical.