EPRO CON021+PR6423/010-140 Eddy Current Sensor System

Overview

The PR6423/010-140 sensor paired with the CON021 pre-amplifier is a precision eddy current displacement and vibration measurement solution. This non-contact system is engineered for high-reliability monitoring of rotating machinery, including turbines, compressors, and generators. It provides accurate shaft vibration, axial displacement, and rotor speed detection for predictive maintenance and operational safety.

Technical Specifications

PR6423/010-140 Sensor Probe

• Measurement Method: Non-contact eddy current displacement and vibration detection

• Linear Measurement Range: 0–1.4 mm (±0.7 mm)

• Sensitivity: 7.87 mV/μm (factory standard calibration)

• Frequency Response: 0–10 kHz (–3 dB)

• Operating Temperature: –40 °C to +150 °C (short-term exposure up to +220 °C with thermal protection)

• Target Material: Ferromagnetic steels (42CrMo4 / AISI 4140)

• Protection Rating: IP66 (dust-tight and protected against powerful water jets)

• Housing Material: Stainless steel for high-temperature and corrosion resistance

CON021 Pre-Amplifier

• Function: Signal conditioning and linear amplification for PR6423 probe

• Power Requirement: –24 V DC

• Output Signal: ±5 V linear (corresponding to full sensor range)

• Load Impedance: ≥10 kΩ

• Operating Temperature: –30 °C to +70 °C

• Protection Rating: IP40

• EMC Compliance: EN 61326

• Calibration: Adjustable gain potentiometer for on-site tuning

Typical Applications

Power Generation

• Turbine shaft vibration monitoring

• Generator air-gap measurement to prevent rotor-stator contact

Petrochemical & Process Industry

• Centrifugal compressor vibration protection (API 670 compliant)

• Axial displacement monitoring of pump thrust bearings

Manufacturing & Metallurgy

• Gearbox condition monitoring in rolling mills

• Vibration harmonic detection to identify gear wear

Comparison & Related Models

FAQ

Q: Can the sensor operate at high temperatures continuously?
A: The probe is rated for –40 °C to +150 °C continuous operation. With thermal protection, it can tolerate short-term exposure up to +220 °C.

Q: Is the system compatible with other monitoring modules?
A: Yes, the CON021 pre-amplifier provides a standard ±5 V linear output for integration into most industrial vibration and displacement monitoring systems.

Q: What materials can the sensor measure?
A: The probe is optimized for ferromagnetic steel shafts, rotors, and impellers. Other conductive metals require calibration verification.

Summary Table