EPRO CON021+PR6424/010-100 Eddy Current Sensor System

Overview

The PR6424/010-100 sensor combined with the CON021 converter module is a high-precision, non-contact eddy current system designed for monitoring critical rotating machinery. This solution delivers accurate measurement of shaft radial vibration, axial displacement, eccentricity, and rotational speed, making it suitable for turbines, compressors, pumps, and heavy-duty gearboxes. Engineered for larger shafts, the PR6424 series extends the measurement range beyond standard PR6423 sensors.

Technical Specifications

PR6424/010-100 Sensor Probe

• Measurement Principle: Non-contact eddy current

• Probe Tip Diameter: 10 mm

• Linear Range: 2 mm (80 mils)

• Initial Air Gap: 1.0 mm (39 mils)

• Scale Factor: 8 V/mm (±5% at 0–45 °C)

• Linearity: ±0.025 mm (±1 mil)

• Minimum Shaft Diameter: 35 mm

• Operating Temperature: –40 °C to +150 °C

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

• Protection Rating: IP66 (IEC 60529)

• Applications: Radial vibration, axial displacement, eccentricity, and rotational speed detection

CON021 Converter Module

• Function: Signal conditioning and linear output for integration into monitoring systems

• Frequency Response: 0–20 kHz (–3 dB)

• Rise Time: <15 µs

• Supply Voltage: –23 V to –32 V DC

• Output Signal: –4 V to –20 V (configurable)

• Operating Temperature: –30 °C to +100 °C

• Protection Rating: IP20

• Housing Material: LMgSi alloy

Applications

• Power Generation: Steam and gas turbine shaft vibration monitoring

• Petrochemical Industry: Compressor and pump axial displacement tracking

• Industrial Machinery: Gearbox vibration monitoring, fan rotor eccentricity detection

• Heavy Equipment: Large shaft monitoring requiring extended measurement range

FAQ

Q: How does PR6424 differ from PR6423?
A: PR6424 features a larger tip (10 mm vs. 8 mm), higher linear range, and is optimized for heavier shafts, providing improved accuracy in larger machinery.

Q: What materials can be measured?
A: The sensor is designed for conductive ferromagnetic targets such as 42CrMo4 / AISI 4140 steel.

Q: Can the system be integrated with existing monitoring platforms?
A: Yes, the CON021 module outputs a stable, linear signal compatible with most vibration monitoring and predictive maintenance systems.