Product Overview

The Emerson PR6423/011-130 CON021 is a high-precision non-contacting eddy current sensor designed for critical machinery protection and condition monitoring. As a core component of the EPRO product line, this sensor is engineered to measure shaft displacement, vibration, and eccentricity in high-speed rotating equipment. By utilizing the eddy current principle, the sensor provides real-time data on the position of a metal target (typically a machine shaft) relative to the sensor tip, ensuring the mechanical integrity of turbines, compressors, and pumps.

The CON021 designation indicates the integrated signal converter or driver requirements, ensuring the raw impedance changes are translated into a standardized linear voltage signal compatible with Distributed Control Systems (DCS) and AMS 6500 monitoring racks. Even though this specific model reached its official end-of-life status in late 2018, it remains a critical spare part for maintaining legacy vibration monitoring infrastructures where precision and reliability are paramount.

Technical Characteristics

• Non-Contact Measurement: Captures high-frequency mechanical data without physical contact, eliminating wear and tear on both the sensor and the monitored shaft.

• High-Resolution Signal Conditioning: Provides superior linear output over a specific measuring range, allowing for the detection of micron-level shaft movements.

• EMI/RFI Resistance: Built with advanced shielding to operate effectively in environments with high electromagnetic interference, common in large motor and generator housing.

• Environmental Sealing: The sensor head and cable are designed to withstand exposure to industrial lubricants, high pressure, and extreme temperature fluctuations.

• Dynamic Monitoring Support: Capable of measuring both static (radial/axial position) and dynamic (vibration) components of shaft motion.

Specifications

• Manufacturer: Emerson (Epro)

• Model Number: PR6423/011-130

• Converter Type: CON021

• Product Series: EPRO / AMS 6500

• Measurement Principle: Eddy Current (Inductive)

• Weight: 0.42 kg

• Dimensions: 27.0 x 24.0 x 4.0 cm

• HS Code: 8537101190

• Origin: USA

• Condition: Brand New (Legacy Stock)

• System Application: DCS / Machinery Protection System (MPS)

Application Field

The PR6423/011-130 CON021 is essential for the predictive maintenance of high-value assets, including:

• Steam and Gas Turbines: Monitoring axial thrust and radial vibration.

• Centrifugal Compressors: Detecting shaft instability and surge conditions.

• Power Plant Generators: Measuring thermal expansion and shaft runout.

• Industrial Gearboxes: Early detection of bearing wear and misalignment.