EPRO CON021+PR6423/013-030 Eddy Current Shaft Vibration Sensor System

Overview

The EPRO PR6423/013-030 Sensor paired with the CON021 Converter Module delivers a high-precision, non-contact solution for measuring shaft vibration and displacement on critical rotating equipment. This system is engineered for turbines, compressors, pumps, and gearboxes, providing reliable predictive maintenance data in compliance with API 670 standards.

Technical Specifications

PR6423/013-030 Sensor Probe

• Type: Non-contact eddy current displacement and vibration sensor

• Measurement Tip: 8 mm

• Linear Measurement Range: 2 mm

• Nominal Air Gap: 3.0 mm

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

• Linearity: ±0.025 mm within 0–45 °C

• Minimum Shaft Diameter: 25 mm

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

• Protection Class: IP66 (IEC 60529)

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

• Applications: Shaft radial vibration, axial displacement, eccentricity, speed measurement

• Use Case: Ideal for sleeve-bearing machinery where case-mounted probes are ineffective

CON021 Converter Module

• Function: Signal conditioning and linear conversion for PR6423 probes

• Frequency Range: 0–20 kHz (–3 dB)

• Response Time: Rise time <15 μs

• Supply Voltage: –23 V to –32 V DC

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

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

• Protection Class: IP20

Applications

• Power Generation: Monitoring turbine shafts in steam and gas turbines

• Petrochemical: Compressor and pump axial displacement tracking

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

FAQ

Q: What type of materials can the sensor measure?
A: The PR6423/013-030 is optimized for ferromagnetic steel, such as 42CrMo4 and AISI 4140.

Q: Can this system measure both vibration and displacement simultaneously?
A: Yes, it provides high-resolution monitoring of radial vibration, axial displacement, and shaft eccentricity.

Q: What is the recommended mounting method for the converter?
A: The CON021 is panel-mounted using four M5 screws, providing secure installation in control cabinets.

Q: How does this system compare to case-mounted probes?
A: Non-contact eddy current measurement allows precise monitoring even where sleeve-bearing machines prevent case-mounted sensor use.

Summary Table