Emerson EPRO PR6423/004-010 8mm Eddy Current Sensor

The Emerson EPRO PR6423/004-010 is an 8mm eddy current sensor designed for non-contact measurement of material thickness and machinery shaft displacement. It precisely monitors radial and axial dynamic displacement, shaft position, eccentricity, and speed in turbines, compressors, gearboxes, pumps, and fans.

Key Features

Non-contact measurement eliminates wear and ensures highly accurate thickness or displacement readings.
8mm sensor tip diameter allows for compact installation in tight machinery spaces.
Rugged IP66-rated construction protects against dust, water, and industrial contaminants.
Wide linear measurement range of 2 mm (80 mils) provides flexibility for various applications.
Initial air gap of 0.5 mm maintains consistent sensor performance across installation environments.
High incremental scale factor of 8 V/mm (±5%) guarantees precise conversion of displacement to electrical signal.
Certifications include CE, ATEX, IEC-Ex, and CSA, allowing use in hazardous locations worldwide.
Compatible with armored or standard cable configurations and optional adapter plugs for versatile integration.

Technical Specifications

Parameter	Specification
Manufacturer	Emerson (EPRO)
Model Number	PR6423/004-010
Product Type	8mm Eddy Current Sensor
Linear Measurement Range	2 mm (80 mils)
Initial Air Gap	0.5 mm (20 mils)
Incremental Scale Factor (ISF)	8 V/mm (203.2 mV/mil) ±5% @ 0–45°C
Deviation from Best-Fit Line (DSL)	±0.025 mm (±1 mil) @ 0–45°C
Operating Temperature	Sensor incl. 1m cable: -35 to +200°C; Cable & connector: -35 to +150°C
Protection Class	IP66, IEC 60529
Sensor Tip Material	PEEK (Polyether Ether Ketone)
Case Material	Stainless Steel
Cable Material	PTFE (Polytetrafluoroethylene)
Connector Material	Brass, nickel-plated
Weight	Approx. 100 g (3.53 oz)
Certification	CE, ATEX, IEC-Ex, CSA

Applications

Radial and axial shaft displacement monitoring in turbines, compressors, and gearboxes
Non-contact measurement for metal, plastic, or composite material thickness
Vibration and eccentricity monitoring for pumps and industrial fans
Critical turbomachinery performance measurement in harsh environments
Suitable for food processing, plastics manufacturing, and metalworking industries