Overview of CON021

The EPRO CON021 is a precision signal converter developed by Emerson (formerly EPRO) for use with the PR642x series non-contact eddy current sensors. It converts the raw analog signals from the probes into standardized output signals (such as 4–20 mA or 0–10 V DC), allowing for seamless integration with control systems, protection relays, and condition monitoring platforms.

This converter is deployed across various critical applications such as steam and gas turbines, hydroelectric generators, and industrial compressors, where accurate shaft displacement and vibration measurements are essential for predictive maintenance and machine protection. Its high-frequency range and fast response time make it ideal for dynamic fault detection and high-speed applications.

The CON021 is built with a rugged design, wide operating temperature range, and an IP65-rated enclosure, ensuring reliable performance in harsh industrial environments. Furthermore, it is compatible with a wide range of sensor models, including PR6422, PR6423, PR6424, PR6425, PR6426, and PR6453, making it highly flexible and suitable for various asset types.

Overview

The EPRO PR6423/010-010 Eddy Current Displacement Sensor is part of Emerson’s AMS machinery protection and monitoring suite. It is engineered for critical turbomachinery such as steam turbines, gas turbines, hydro turbines, compressors, gearboxes, pumps, and fans. Moreover, the sensor operates on the non-contact eddy current principle, enabling accurate and reliable measurement of shaft dynamics without mechanical wear. In addition, its rugged stainless-steel construction and IP66 protection rating ensure dependable performance in harsh environments exposed to vibration, temperature extremes, and aggressive industrial media. Therefore, the PR6423/010-010 is widely used in industries requiring precise shaft monitoring, early fault detection, and predictive maintenance.

Technical Data

Typical Applications

• Shaft vibration monitoring in turbines, compressors, and high-power rotating equipment

• Axial and radial displacement measurement for predictive maintenance

• Shaft position, eccentricity, and runout detection in high-speed machinery

• Thrust bearing monitoring to prevent catastrophic failures

• Machinery diagnostics in chemical, petrochemical, and power generation industries

FAQ

Q1: What is the primary function of the PR6423/010-010 sensor?

A1: It measures shaft vibration, axial displacement, and position using a non-contact eddy current principle.

Q2: Can the sensor be used in harsh environments?

A2: Yes. Its IP66 protection rating and high-temperature tolerance up to +180 °C make it suitable for severe industrial conditions.

Q3: What target material does the sensor support?

A3: It is optimized for ferromagnetic steels such as 42CrMo4 (AISI 4140), which are standard shaft materials in turbomachinery.

Q4: Is the sensor compatible with monitoring systems?

A4: Yes. It integrates seamlessly with the CON021 converter and Emerson AMS machinery protection systems.

Q5: Which industries typically use this sensor?

A5: Power generation, oil & gas, chemical processing, and other heavy industrial sectors relying on large rotating machinery.