Epro CON021+PR6423/010-040-CN Eddy Current Proximity Sensor System

Product Description

The PR6423/010-040-CN + CON021 assembly is a precision shaft monitoring solution developed for continuous condition measurement in rotating machinery. It utilizes eddy-current technology to detect displacement without physical contact, ensuring consistent performance even in high-speed and high-temperature environments.

This configuration integrates a robust proximity probe with a dedicated signal conditioning unit, enabling accurate conversion of mechanical movement into a stable electrical output for protection and control systems.

System Composition

PR6423/010-040-CN Probe Unit
The PR6423/010-040-CN is part of the PR6423 series, featuring an 8 mm sensing tip optimized for industrial applications requiring durability and measurement stability. The CN version reflects a regional configuration aligned with specific connector and compliance standards.

The “010-040” code typically corresponds to calibration pairing and a medium-length cable configuration, commonly around 4 meters.

Measurement capabilities include:

• Radial vibration detection of rotating shafts

• Axial displacement tracking

• Rotor position monitoring

• Gap voltage reference measurement

CON021 Signal Conditioning Module
The CON021 module supplies high-frequency excitation to the probe and converts the returned signal into a linear analog voltage. It ensures signal integrity, minimizes noise interference, and enables seamless integration with machinery monitoring systems.

Technical Specifications

PR6423/010-040-CN Proximity Probe

• Sensing Principle: Eddy current, non-contact measurement

• Tip Diameter: 8 mm

• Measuring Range: ±1.0 mm to ±2.0 mm (dependent on calibration)

• Sensitivity: 8 mV/µm (with matched driver)

• Frequency Response: Up to 10 kHz

• Linearity Deviation: ≤ ±1% FS

• Resolution: < 1 µm

• Operating Temperature Range: –35 °C to +180 °C

• Protection Level: IP65 or higher

• Housing Material: Corrosion-resistant stainless steel

• Cable Length: Approx. 4 m integrated coaxial cable

• Connector Type: Standard Epro coaxial connector

• Mounting Options: Threaded installation or bracket mounting

CON021 Driver Module

• Device Role: Signal conditioning and probe excitation

• Compatible Sensors: PR6422, PR6423, PR6424, PR6426

• Power Input: 24 V DC

• Excitation Method: Internal high-frequency oscillator

• Output Signal: Linear voltage proportional to displacement (typically 0–20 V)

• Sensitivity: 8 mV/µm (system matched)

• Bandwidth: Up to 10 kHz

• Accuracy: ≤ ±1% FS

• Diagnostic Capabilities:

• Probe status monitoring

• Cable fault detection

• Gap voltage supervision

• Operating Temperature: –20 °C to +70 °C

• Installation: DIN rail or rack-mounted system

Performance Overview

• Sensitivity: 8 mV/µm

• Linear Range: Up to ±2 mm

• Frequency Bandwidth: Up to 10 kHz

• Accuracy: ≤ ±1% FS

• Output Format: Analog voltage signal

Typical Applications

• Steam and gas turbine shaft monitoring

• Compressor and blower condition analysis

• High-speed motor and generator protection

• Gearbox vibration monitoring

• Petrochemical rotating equipment diagnostics

Key Functional Advantages

• Contact-free sensing eliminates mechanical wear

• High resistance to electromagnetic interference and temperature variation

• Consistent measurement accuracy over long service periods

• Compatible with MMS 6000, MMS 3000, and VM600 monitoring platforms

• Modular architecture simplifies installation and maintenance

FAQ

Q: What does the “040” designation indicate?
A: It generally refers to the probe’s cable length, typically around 4 meters, though exact specifications may vary by configuration.

Q: Can this system be integrated into existing monitoring setups?
A: Yes, it is designed for compatibility with common Epro and third-party vibration monitoring systems using standard analog inputs.

Q: What type of output does the driver provide?
A: The CON021 delivers a linear voltage signal proportional to shaft displacement, commonly within a 0–20 V range.