EPRO PR6423/002-030+CON021

Product Overview

PR6423/002-030 + CON021 is a high-performance, non-contact eddy current displacement measurement solution designed for small and medium-sized critical rotating machinery or applications requiring high-precision vibration monitoring. It is provided by Emerson.

PR6423/002-030 is an eddy current sensor with an 8mm probe diameter. The compact probe size enables the sensor to generate a concentrated and highly sensitive sensing field, making it ideal for installation in space-constrained locations and capable of accurately capturing minute shaft movements.

CON021 is a universal eddy current signal converter. This converter is responsible for providing high-frequency excitation signals to the sensor and linearly converting the weak impedance changes sensed by the sensor into standard -2V to -18V or -4V to -20V direct current voltage signals for monitoring, protection, or control systems.

This combination is an ideal choice for monitoring shaft vibration, eccentricity, and rotational speed in gearboxes, high-speed motors, small compressors, pumps, fans, and auxiliary bearings on large equipment. Its core value lies in high resolution, high sensitivity, and compact installation dimensions, providing critical data related to the health status of the equipment within limited space.

Product Function Features

Ultra-high Sensitivity and Resolution

The ultra-high sensitivity of 8 V/mm means that for every 1 micrometer the axis moves, the output signal changes by 8 millivolts. This extremely high resolution enables it to detect extremely weak vibration signals caused by early bearing wear, slight imbalance, or misalignment, providing the most advanced data guarantee for predictive maintenance.

Compact Installation Size

The 8mm probe diameter and M10x1 standard thread allow the PR6423/002-030+CON021 to be easily installed in extremely limited spaces, such as the bearing housing of a compact gearbox, the intermediate bearing position of a multi-stage pump, or when retrofitting and adding to existing equipment, without requiring large-scale modifications to the equipment itself.

Outstanding Dynamic Performance

The 20kHz frequency bandwidth and <15µs rise time ensure that it not only can accurately measure low-frequency shaft deflections, but also can fully capture the high-frequency fault characteristic frequencies of bearings, making it an ideal sensor for advanced vibration analysis.

Sturdy and Reliable, Adapted to Harsh Environments The IP66 protection level, the working temperature range of -35°C to +180°C, and the robust material combination of PEEK/steel/PTFE ensure that the sensor can operate stably and reliably for a long time even in industrial environments filled with oil mist, dust, high temperatures or humidity.

Product Evolution and Technological Development

The 8mm eddy current sensor, as a mature technology, follows a similar evolution path to other sizes.

Miniaturization and integration

The volume of the probe and preamplifier is constantly shrinking to fit into more compact modern devices. At the same time, the functions of the preamplifier are being integrated into more intelligent I/O modules.

Digital interface

Although analog output is still the mainstream, intelligent preamplifiers with digital communication capabilities are emerging, capable of transmitting diagnostic information.

Intelligent data analysis

The future value does not lie in the hardware itself, but in how to utilize the high-quality raw data collected by PR6423. Through cloud platforms and AI algorithms, it is possible to achieve from simple alarms to complex fault root cause analysis and remaining life prediction, which is the ultimate manifestation of the product's technological development.