Description
EPRO PR6423/008-110 Product Description
Product Overview
EPRO PR6423/008-110 is a high-precision 8 mm eddy current displacement sensor developed by EPRO (now part of Emerson’s machinery health monitoring portfolio) for non-contact measurement of rotating machinery shaft displacement, vibration, position, and eccentricity. As a core sensor component of the EPRO MMS 3000 and MMS 6000 machinery protection and monitoring systems, EPRO PR6423/008-110 is designed for critical turbomachinery applications requiring continuous and accurate condition monitoring.
The EPRO PR6423/008-110 operates based on the eddy current measurement principle, generating a proportional electrical signal according to the distance between the probe tip and the conductive target surface. This contactless measurement technology eliminates mechanical wear and allows stable operation under high-speed rotation, high temperature, oil contamination, and vibration conditions. The sensor is widely used for monitoring radial shaft vibration, axial displacement, shaft eccentricity, thrust bearing movement, and other dynamic parameters of rotating equipment.
As part of the EPRO PR6423 series, EPRO PR6423/008-110 provides a nominal 8 mm probe diameter and ±1 mm static measurement capability, offering an optimized solution for medium-size rotating shafts. When combined with compatible signal converters such as EPRO CON021 or EPRO CON041, the sensor forms a complete vibration and displacement measurement chain for integration with DCS, PLC, SCADA, and dedicated machinery protection systems.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | PR6423/008-110 |
| Manufacturer | EPRO / Emerson |
| Product Type | Eddy Current Displacement Sensor |
| Measurement Principle | Non-contact eddy current technology |
| Sensor Diameter | 8 mm |
| Measurement Range | ±1.0 mm position measurement |
| Dynamic Vibration Range | Approximately 0 to 500 μm peak-to-peak |
| Sensitivity | 8 V/mm (203.2 mV/mil) |
| Frequency Response | 0 to 20 kHz |
| Initial Air Gap | Approx. 0.5 mm |
| Target Material | Ferromagnetic steel (42CrMo4 / AISI 4140 standard) |
| Minimum Shaft Diameter | Approx. 25 mm |
| Operating Temperature | -35°C to +180°C (sensor with cable) |
| Protection Rating | IP66 |
| Cable Type | High-temperature industrial cable |
| Compatible Converters | CON021, CON041, MMS system converters |
| Standards Compliance | API 670, DIN 45670, ISO 10817-1 |
| Application System | EPRO MMS 3000 / MMS 6000 |

PR6423010-140+CON021
Application Areas
EPRO PR6423/008-110 is widely used in industrial machinery monitoring and protection systems where precise shaft displacement and vibration measurement are required.
In power generation plants, EPRO PR6423/008-110 is commonly applied to steam turbines, gas turbines, hydro turbines, generators, and auxiliary rotating equipment. It monitors shaft vibration and displacement conditions to support turbine protection and predictive maintenance strategies.
In oil and gas facilities, EPRO PR6423/008-110 is used for compressors, pumps, expanders, and rotating process equipment. Continuous vibration monitoring helps prevent mechanical failures and improves operational safety in demanding production environments.
In petrochemical and chemical industries, EPRO PR6423/008-110 supports machinery protection systems by detecting abnormal shaft movement, bearing problems, and rotor instability. It provides essential data for condition-based maintenance programs.
In marine and offshore installations, EPRO PR6423/008-110 is applied to propulsion systems, generators, compressors, and auxiliary machinery where reliability and continuous operation are critical.
In industrial manufacturing plants, EPRO PR6423/008-110 helps monitor high-speed motors, gearboxes, fans, and pumps, improving equipment reliability and reducing production interruptions.
Related Products
- EPRO CON021: Signal converter compatible with EPRO PR6423/008-110, used to process eddy current sensor signals.
- EPRO CON041: Advanced converter module for PR6423 series sensor applications.
- EPRO PR6423/010-110: Related 8 mm eddy current sensor model with different configuration.
- EPRO PR6424 Series: Larger measurement range eddy current sensor series for bigger shaft displacement applications.
- EPRO PR6422 Series: Smaller 5 mm probe sensor series for compact rotating machinery.
- EPRO MMS6000: Machinery monitoring and protection system supporting EPRO PR6423/008-110.
- EPRO MMS3000: Industrial vibration monitoring platform for rotating equipment.
- Emerson AMS 6500: Machinery health monitoring system compatible with EPRO sensor technology.
