EPRO PR6424/011-140+CON021

Product Overview

PR6424/011-140 + CON021 is a fully integrated high-performance eddy current measurement system of Emerson's EPRO brand, specifically designed for continuous non-contact monitoring of critical rotating machinery. This configuration is specifically designed for applications that require powerful performance and long-distance measurement.

PR6424/011-140 sensor: This is a 16-millimeter diameter eddy current probe. The order code "011-140" indicates that the sensor adopts an M18x1.5 threaded interface, does not come with armored cable, has a 50mm housing length, is equipped with a 14-meter-long cable, and features a LEMO connector.

CON021 Signal converter: This is the intelligent interface of the system. It powers the sensor, generates a high-frequency oscillating magnetic field, and converts the raw signal into a stable, industry-standard DC voltage output, which is linearly proportional to the distance between the probe tip and the target axis.

PR6424/011-140 + CON021 together form a complete channel for precisely measuring the vibration, axial position and eccentricity of the shaft. The 14-meter-long cable makes this configuration particularly suitable for large machinery, such as large power plants or offshore platforms, where the distance between the monitoring panel and the measurement point is usually quite far.

Function Features

The main feature of this model is the 14-meter-long cable, which extends the measurement range. The long and high-quality PTFE cable enables it to be flexibly installed on large mechanical devices, thus allowing the converter to be installed in a central position far from the measurement point in a harsh environment, ensuring safety.

Adopting the eddy current principle, it ensures no physical contact with the shaft, thereby eliminating wear. Through non-contact high-reliability measurement, it provides excellent long-term stability for continuous monitoring.

The system's wide frequency range (0-20 kHz) and fast rise time (<15 µs) enable it to precisely capture slow rolling position changes and high-frequency vibration events, offering excellent dynamic response. This is crucial for detecting imbalance, misalignment and other mechanical faults.

The sensor is a robust design specifically designed to withstand the harsh operating conditions in turbomachinomachy, suitable for extreme environments, including high temperatures (up to 150°C), high pressures (145 psi), and erosion by oil and chemicals.

This system is intrinsically safe with global certifications (ATEX, IECEx, CSA) and is suitable for use in hazardous areas. After being integrated with a safety barrier of appropriate rated value, it can be safely installed in Class I Zone 1 / Zone 0 hazardous locations to prevent the sensor from becoming a potential ignition source.

The comprehensive linearity of this system is ≤1.5%, and the temperature error complies with the API 670 standard. It can provide the accuracy and reliability required for mechanical protection (in compliance with the API 670 standard) and predictive maintenance procedures.