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 PR6423/11R-131

The EPRO PR6423/11R-131 is a high-precision eddy current sensor designed for critical turbomachinery applications, paired with the CON031 signal converter. This system is used to measure radial and axial shaft displacement, vibration, and position, providing high accuracy for predictive maintenance and early fault detection in rotating machinery.

The PR6423 sensor features an 11R reverse-mount configuration, allowing installation from behind the target surface. This makes it ideal for environments where space is limited or when access to the target surface is restricted, such as tight or rear-access installations.

The CON031 converter processes the analog signal from the sensor and outputs standardized data, which is compatible with control systems and protection platforms such as Emerson’s MMS 6000 and MMS 3000. This ensures seamless integration into monitoring architectures and effective machinery protection.

The system’s rugged design, wide frequency range, and ability to operate in extreme temperatures and hazardous zones make it perfect for power generation, oil & gas, and heavy industrial applications where equipment reliability and continuous operation are crucial.

Technical Data

Typical Applications

• Gas and Steam Turbines: Monitors shaft vibration and displacement, helping prevent faults and enabling trip logic for safe operation.

• Compressors and Pumps: Detects issues like imbalance, misalignment, and bearing degradation, preventing mechanical failures in high-speed equipment.

• Gearboxes and Fans: Measures gear mesh vibration and rotor movement to monitor operational stability under dynamic loads.

• Hydroelectric Generators: Tracks rotor eccentricity and position, ensuring safe and efficient turbine operation.

• Predictive Maintenance Systems: Supports real-time diagnostics and trend analysis for rotating machinery, improving reliability and extending service life.

For instance, power plant operators use this system to monitor shaft behavior during startup and shutdown, preventing mechanical failures and increasing operational longevity. The system’s compatibility with Emerson platforms guarantees seamless integration into existing monitoring frameworks.

FAQ

Q: What does the PR6423/11R-131 sensor measure?
A: It measures shaft vibration, displacement, and position using non-contact eddy current technology.

Q: What is the benefit of the reverse-mount design?
A: The reverse-mount configuration allows for installation from behind the target surface, making it ideal for constrained or rear-access environments.

Q: Is the system compatible with Emerson MMS platforms?
A: Yes, it integrates with Emerson MMS 6000 and MMS 3000 systems for control and protection.

Q: Can it operate in hazardous environments?
A: Yes, the system is certified for ATEX and IECEx zones and operates reliably in temperatures up to +100°C.