Introduction

The Epro PR6424/117-000 is a 16mm eddy current proximity sensor used for precise monitoring of shaft movement in high-performance rotating machinery. As part of the PR6424 series, it provides reliable, non-contact measurement performance for industrial systems requiring continuous condition monitoring and protection.

By utilizing electromagnetic induction, the sensor delivers stable and accurate real-time displacement signals without mechanical wear, making it ideal for turbines, compressors, and other mission-critical rotating equipment in demanding industrial environments.

Technical Specifications

Parameter	Specification
Product Model	PR6424/117-000
Sensor Type	Eddy current non-contact probe
Sensor Head Diameter	16 mm
Measurement Type	Shaft displacement, vibration, position
Operating Principle	Electromagnetic induction
Compatible Systems	EPRO CON series signal converters
Target Shaft Range	≥80 mm diameter systems
Operating Temperature	-35°C to +180°C
Shock & Vibration Resistance	Up to 5g @ 60 Hz
Linearity	±1.5%
Long-term Drift	<0.3%
Target Material	Ferromagnetic steel
Weight	0.2 kg / 0.44 lb

Applications

The Epro PR6424/117-000 16mm Eddy Current Sensor is designed for high-accuracy, non-contact measurement of shaft displacement, vibration, and positional changes in critical rotating machinery. It is widely deployed in industrial environments where continuous reliability and signal integrity are essential for machinery protection and performance optimization.

Typical use cases include:

Steam, gas, and hydro turbines
Centrifugal and axial compressors
Heavy-duty pump and feedwater systems
Industrial fan and blower assemblies
Turbomachinery radial and axial vibration monitoring
Shaft eccentricity and dynamic position tracking
Speed reference and keyphasor monitoring systems

This model is commonly integrated into API 670-compliant condition monitoring architectures for high-value rotating assets.

Advantages

Non-contact eddy current sensing eliminates mechanical wear and extends operational life
High signal stability for continuous industrial monitoring environments
Excellent resistance to vibration, thermal cycling, and harsh industrial conditions
High linearity ensures precise diagnostic-level measurement output
Compatible with EPRO CON series signal conditioning systems
Supports both static displacement and dynamic vibration measurement
Optimized for large shaft turbomachinery applications (≥80 mm shaft systems)
Reliable long-term performance with minimal signal drift

Technical FAQs

Q1: What is the primary function of this sensor?
It measures shaft displacement, vibration, eccentricity, and positional changes in rotating machinery.

Q2: What sensing principle is used?
It operates using eddy current non-contact electromagnetic induction technology.

Q3: Does the sensor require physical contact with the target shaft?
No, it operates completely without physical contact, preventing wear and mechanical damage.

Q4: What equipment is it typically paired with?
It is commonly used with EPRO CON series signal converters such as CON021, CON031, or CON041.

Q5: Can it be used for continuous monitoring applications?
Yes, it is designed for 24/7 industrial condition monitoring systems.

Q6: What types of signals does it measure?
It measures both static shaft position and dynamic vibration signals.

Q7: Is it suitable for harsh industrial environments?
Yes, it is built for high-vibration, high-temperature, and contaminated industrial conditions.

Q8: Does it support predictive maintenance systems?
Yes, it is widely used in predictive maintenance and machinery protection systems.

Q9: What industries commonly use this sensor?
Power generation, oil & gas, petrochemical, and heavy manufacturing industries.

Q10: Is long-term signal drift a concern?
No, the sensor is designed for long-term stability with minimal drift characteristics.

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