Introduction

The EPRO PR6423/012-100 8 mm Eddy Current Sensor Head is a precision-engineered probe used for accurate monitoring of shaft displacement and vibration in critical rotating machinery. Its compact 8 mm design, combined with robust industrial construction, makes it suitable for turbines, compressors, and heavy-duty equipment. When paired with a compatible signal converter, it delivers reliable real-time data essential for predictive maintenance and machinery protection systems.

Technical Specifications

Technical Parameter	Specification
Product Model	PR6423/012-100
Brand	EPRO
Sensor Type	Eddy Current Displacement Sensor Head
Sensor Diameter	8 mm
Measurement Principle	Non-contact eddy current induction
Measured Parameters	Vibration, displacement, shaft position, eccentricity
Linear Measurement Range	Up to 2 mm (system dependent)
Target Material	Conductive metals (steel shafts)
Output Signal	Requires external signal converter (CON series)
Operating Temperature	-35°C to +180°C
Housing Material	Stainless steel sensor body
Cable Type	Shielded industrial cable
Weight	0.1 kg (0.22 lb)
Mounting Type	Threaded probe installation
Protection Rating	Industrial-grade housing (system dependent IP rating)

Applications

The EPRO PR6423/012-100 8 mm Eddy Current Sensor Head is a high-precision, non-contact probe designed for continuous monitoring of rotating machinery. It is widely used in condition monitoring systems where stable measurement of shaft vibration and displacement is critical for equipment safety and performance.

Typical applications include:

Steam, gas, and hydro turbines
Industrial compressors and turbo-compressors
Pump and pump train monitoring systems
Gearbox shaft vibration analysis
Power generation machinery protection systems
Condition monitoring and predictive maintenance platforms
Shaft eccentricity and axial displacement measurement
Heavy-duty industrial rotating equipment diagnostics

Advantages

Non-contact measurement technology: Eliminates mechanical wear and extends service life
High measurement stability: Reliable performance under vibration, heat, and pressure conditions
8 mm compact probe design: Standard size for turbomachinery applications
Strong signal consistency: Ensures accurate displacement and vibration readings
Industrial-grade durability: Built for harsh environments and continuous operation
System compatibility: Designed for integration with EPRO/Emerson CON series converters
High-frequency response: Suitable for dynamic shaft vibration monitoring

Technical FAQs

What is the operating principle?
It uses eddy current induction to measure the distance between the probe tip and a conductive metal target.
What equipment is it typically used with?
It is used in turbines, compressors, pumps, and other rotating machinery systems.
Does it require contact with the shaft?
No, it operates completely without physical contact.
What materials can it measure?
Conductive ferromagnetic materials such as steel shafts.
Is it suitable for continuous monitoring?
Yes, it is designed for 24/7 industrial condition monitoring.
What is the sensor diameter?
8 mm.
Does it support vibration measurement?
Yes, it measures both vibration and static displacement.
Is a signal converter required?
Yes, it must be used with a compatible CON series signal conditioner.
Can it operate in harsh environments?
Yes, it is designed for high-temperature and high-vibration industrial conditions.
Is calibration necessary?
Yes, system-level calibration is required for accurate measurement performance.