EPRO PR6423/00B-030 Eddy Current Sensor

Overview

The EPRO PR6423/00B-030 is an 8mm eddy current sensor, coupled with a signal converter from Emerson Épro. It is designed for critical turbomachinery applications, including steam, gas, and hydro turbines, compressors, gearboxes, pumps, and fans. This sensor measures radial and axial shaft dynamic displacement, position, eccentricity, and speed. Its high accuracy and durability make it ideal for demanding industrial environments.

Key Features

High Accuracy and Repeatability: Achieves an accuracy of ± 0.025 mm and a repeatability of 40.196 for precise measurements.
Wide Operating Temperature Range: Operates efficiently within -40°C to +125°C and can handle harsh environmental conditions.
Rugged Construction: The sensor features a robust design, ensuring reliable performance even in challenging industrial settings.
Easy Installation: Simple installation process and user-friendly setup make the sensor highly accessible for various applications.

Applications

The EPRO PR6423/00B-030 is ideal for monitoring the following systems:

Steam, gas, and hydro turbines
Compressors
Gearboxes
Pumps
Fans

It provides valuable measurements for dynamic displacement, shaft position, and eccentricity in these critical machines.

Technical Specifications

Parameter	Value
Linear Measurement Range	2 mm (80 mils)
Initial Air Gap	0.5 mm (20 mils)
Incremental Scale Factor (ISF)	ISO: 8 V/mm (203.2 mV/mil) ± 5% @ 0 to 45°C
Deviation from Best Fit Line (DSL)	± 0.025 mm (± 1 mil) @ 0 to 45°C
Measuring Target	Ferromagnetic Steel
Minimum Shaft Diameter	25 mm (0.79”)
Target Material	42CrMo4 (AISI/SAE 4140) Standard
Protection Class	IP66, IEC 60529
Operating Temperature Range	Sensor: -35 to +180°C (-31 to +356°F)
	Cable & Connector: -35 to +150°C (-31 to +302°F)
Materials	Sensor Tip: PEEK (Polyether Ether Ketone)
	Case: Stainless Steel
	Cable: PTFE (Polytetrafluoroethylene)
	Connector: Brass, Nickel-plated
Weight (with 1m Cable)	Approx. 100 grams (3.53 oz)
Dimensions	16 cm x 16 cm x 12 cm
Tip Diameter	8 mm
Case Threads	M10 x 1
Armored Cable	No
Output Signal	4-20 mA or 0-10 V DC
Accuracy	± 0.025%
Repeatability	40.196
Operating Temperature Range	-40°C to +125°C (-40°F to +257°F)
Storage Temperature Range	-55°C to +150°C (-67°F to +302°F)
Humidity	95% RH non-condensing
Vibration	20g peak to peak, 10-2000 Hz
Shock	50g peak, 11 ms, half-sine

How It Works

The EPRO PR6423/00B-030 sensor utilizes eddy current technology to detect dynamic movements and position changes in rotating machinery. It transmits a signal that corresponds to the measured displacement, providing real-time data for precise monitoring. The signal converter ensures accurate output, either in the form of a 4-20 mA or 0-10 V DC signal. This allows seamless integration into control systems for efficient monitoring and diagnostics.

Conclusion

The EPRO PR6423/00B-030 is a high-performance sensor specifically designed for critical machinery applications. Its robust design, accurate measurements, and wide operating temperature range make it the ideal choice for turbomachinery and other demanding industrial environments. Whether used in turbines, compressors, or pumps, this sensor provides reliable data that enhances performance and reliability.