EPRO CON021+PR6423/015-110 Eddy Current Shaft Vibration Sensor System

Overview

The EPRO CON021 + PR6423/015-110 system delivers precise non-contact monitoring of shaft displacement and vibration, engineered for high-performance rotating machinery such as turbines, compressors, pumps, and gearboxes. It is designed for predictive maintenance, early fault detection, and compliance with API 670 standards.

This solution combines the PR6423/015-110 Eddy Current Probe with the CON021 Signal Converter to provide accurate, linear outputs suitable for integration into machine protection and monitoring systems.

PR6423/015-110 Sensor Probe

• Type: Eddy current displacement and vibration sensor

• Measurement Tip Diameter: 8 mm

• Linear Range: 2 mm (80 mils)

• Initial Air Gap: 1.1 mm (43 mils)

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

• Linearity (DSL): ±0.025 mm within 0–45 °C

• Minimum Shaft Diameter: 25 mm (0.98 in)

• Operating Temperature: –40 °C to +150 °C (sensor body)

• Protection Rating: IP66 (IEC 60529)

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

• Typical Applications: Shaft vibration, axial displacement, eccentricity, and speed measurement in sleeve-bearing machines

CON021 Converter Module

• Function: Signal conditioning and conversion for PR6423 probes

• Frequency Range: 0–20 kHz (–3 dB)

• Rise Time: <15 μs

• Supply Voltage: –23 V to –32 V DC

• Output Voltage Range: –4 V to –20 V

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

• Protection Class: IP20

• Housing Material: LMgSi alloy

• Mounting: Panel mount with four M5x20 screws

Applications

• Power Generation: Steam and gas turbine shaft vibration monitoring

• Petrochemical: Axial displacement detection in pumps and compressors

• Industrial Machinery: Gearbox vibration, fan rotor eccentricity, and high-speed rotating shafts

Technical Comparison / FAQ

Q: Can the sensor measure non-ferrous shafts?
A: The PR6423/015-110 is optimized for ferromagnetic steel. Non-ferrous targets may require alternative probe types.

Q: What is the maximum shaft diameter for accurate readings?
A: The system is suitable for shafts ≥25 mm in diameter; larger diameters may require recalibration.

Q: Are the converter outputs compatible with standard PLCs?
A: Yes, the CON021 provides linear voltage outputs that integrate with most machine protection and monitoring systems.

Summary Table