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 PR6423/003-110

The EPRO PR6423/003-110 sensor system, paired with the CON021 signal converter, is a high-performance solution for non-contact, eddy current measurement of dynamic shaft behavior in high-speed rotating machinery. Designed for gas turbines, steam turbines, compressors, gearboxes, hydroelectric generators, and fans, this system provides real-time, accurate data on critical parameters like shaft vibration, displacement, and eccentricity.

The PR6423 sensor detects dynamic movement, while the CON021 converter processes and outputs standardized analog signals, enabling integration into existing control systems such as Emerson’s MMS 6000 and MMS 3000 platforms. This system supports predictive maintenance by offering real-time diagnostics and trend analysis, helping prevent unexpected equipment failures and reducing downtime.

With a wide frequency range (0 to 20,000 Hz) and modular design, the system is suitable for both new installations and retrofits, offering flexible integration options and easy maintenance. Moreover, it operates reliably in harsh industrial environments, including explosive atmospheres and high-temperature conditions, thanks to its ATEX and IECEx certifications.

Technical Data

Typical Applications

• Gas and Steam Turbines: Provides critical monitoring of shaft vibration, displacement, and eccentricity to detect early faults and support trip logic for emergency shutdowns.

• Hydroelectric Generators: Tracks rotor position, eccentricity, and shaft displacement, preventing mechanical failures and maintaining operational stability.

• Compressors and Pumps: Detects imbalance, misalignment, and bearing wear in high-speed equipment, helping to optimize efficiency and extend machinery life.

• Gearboxes and Fans: Monitors gear mesh vibration and shaft movement under dynamic loads, ensuring smooth operation and avoiding costly mechanical breakdowns.

• Predictive Maintenance Systems: Supports real-time diagnostics and trend analysis for rotating machinery, enabling proactive maintenance actions.

For example, in power plants, this system is used to monitor turbine shafts during startup and shutdown processes, preventing damage from mechanical stress and vibrations. Its seamless integration with Emerson MMS platforms enhances the reliability of the control and protection systems, providing a comprehensive monitoring solution.

FAQ

Q: What does the PR6423/003-110 sensor measure?
A: It measures shaft vibration, displacement, and position using eddy current technology, providing accurate and real-time data for predictive maintenance and machine protection.

Q: Is the system compatible with Emerson MMS platforms?
A: Yes, it integrates seamlessly with Emerson MMS 6000 and MMS 3000 systems, ensuring compatibility with existing control and protection setups.

Q: Can it be used in hazardous environments?
A: Absolutely. The system is certified for use in ATEX and IECEx zones, making it suitable for explosive and high-temperature environments.

Q: What is the typical sensing range of the system?
A: The PR6423/003-110 sensor typically measures within a range of 2 mm to 4 mm, depending on the specific configuration and application.