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 PR6423/00R-010

The EPRO PR6423/00R-010 is part of Emerson’s PR6423 series, designed for non-contact measurement of dynamic shaft behavior using eddy current technology. Paired with the CON021 signal converter, this system converts the raw analog signal into standardized outputs (e.g., 4-20 mA or 0-10 V DC), which can be easily integrated into control and protection systems such as Emerson’s MMS 6000 and MMS 3000.

This high-precision sensor is used extensively in gas turbines, steam turbines, compressors, gearboxes, and pumps, providing accurate readings of radial and axial shaft movement. It is essential for detecting early signs of imbalance, misalignment, and bearing wear, making it a crucial component in predictive maintenance programs. The sensor’s high sensitivity and reliable performance in challenging industrial environments help reduce unplanned downtime and enhance machinery lifespan.

Moreover, the PR6423/00R-010 sensor meets international standards like ISO 10816 and API 670, making it suitable for safety-critical applications in power generation, oil & gas, and other demanding industries. Its robust construction and wide operating temperature tolerance ensure it performs reliably even in harsh environments.

Technical Data

Typical Applications

• Gas and Steam Turbines: Monitors shaft vibration and displacement for early fault detection and integration with trip logic systems to ensure safe operation.

• Compressors and Pumps: Identifies imbalance, misalignment, and bearing wear, which helps maintain smooth, efficient operation of high-speed equipment.

• Gearboxes and Fans: Measures gear mesh vibration and shaft movement under dynamic loads, preventing mechanical breakdowns and ensuring continuous operation.

• Industrial Motors: Tracks rotor position and eccentricity, providing real-time data for critical motor systems to avoid mechanical failures.

• Predictive Maintenance Systems: Enables real-time diagnostics and trend analysis, offering predictive insights to reduce unscheduled maintenance and extend equipment life.

For example, in gas turbines, this sensor system monitors shaft displacement during startup and shutdown, preventing vibration damage and increasing reliability. It seamlessly integrates with Emerson’s MMS platforms to ensure continuous monitoring and protection across the entire system.

FAQ

Q: What does the PR6423/00R-010 sensor measure?
A: It measures shaft vibration, displacement, and position using eddy current technology, providing real-time data for critical rotating machinery.

Q: What is the mounting style of this model?
A: The sensor features a standard front-mount design (00R), making it ideal for direct access installations on rotating shafts.

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

Q: Can it be used in high-temperature environments?
A: Yes, the sensor operates reliably in temperatures up to +100°C, making it suitable for harsh industrial conditions.