Introduction

The EPRO PR6423/012-120 8 mm Eddy Current Sensor Head is a precision-engineered probe designed for accurate, non-contact measurement of shaft vibration and displacement in critical rotating machinery. Its robust stainless-steel construction and compact 8 mm design make it ideal for turbines, compressors, and industrial drive systems. When integrated with a compatible signal converter, it provides reliable real-time data essential for condition monitoring, predictive maintenance, and machinery protection.

Technical Specifications

Technical Parameter	Specification
Product Model	PR6423/012-120
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

Applications

The EPRO PR6423/012-120 8 mm Eddy Current Sensor Head is a high-precision non-contact probe used for continuous monitoring of rotating machinery in demanding industrial environments. It is widely applied in systems where reliable shaft vibration and displacement measurement is essential for operational safety and predictive maintenance.

Typical applications include:

Steam, gas, and hydro turbines
Centrifugal and axial compressors
Industrial pump systems and pump trains
Gearboxes and high-speed rotating shafts
Power generation machinery monitoring
Condition monitoring and protection systems
Shaft eccentricity and axial displacement measurement
Heavy-duty industrial rotating equipment diagnostics

Advantages

Non-contact eddy current technology: Eliminates mechanical wear and ensures long service life
High measurement accuracy: Stable and repeatable readings in harsh environments
Compact 8 mm probe design: Standard size for turbomachinery monitoring systems
Strong environmental resistance: Performs reliably under vibration, heat, and pressure conditions
High-frequency response: Suitable for dynamic vibration and shaft movement detection
Seamless system integration: Compatible with EPRO / Emerson CON series signal conditioning systems
Industrial-grade durability: Built for continuous 24/7 operation in critical applications

Technical FAQs

What is the operating principle of this sensor?
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 industrial rotating machinery systems.
Does it require physical contact with the shaft?
No, it is a non-contact measurement device.
What materials can it measure?
Conductive ferromagnetic metals such as steel shafts.
Is it suitable for continuous monitoring?
Yes, it is designed for 24/7 industrial condition monitoring applications.
What is the sensor diameter?
8 mm.
Can it measure vibration and displacement?
Yes, it measures both dynamic vibration and static displacement.
Does it require a signal converter?
Yes, it must be paired with a compatible CON series signal conditioner.
Is it suitable for harsh environments?
Yes, it is designed for high temperature and high vibration conditions.
Is calibration required?
Yes, system-level calibration is required for accurate measurement performance.