EPRO CON021+PR6423/014-030 Eddy Current Vibration Sensor System

Overview

The EPRO PR6423/014-030 sensor paired with the CON021 converter provides a high-precision, non-contact solution for measuring shaft vibration, radial displacement, and eccentricity in critical rotating machinery. Engineered for demanding applications such as turbines, compressors, pumps, and gearboxes, this system supports predictive maintenance, machine protection, and API 670 compliance.

PR6423/014-030 Sensor Probe

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

• Tip Diameter: 8 mm

• Measurement Range: 2 mm (0–0.08 in)

• Initial Air Gap: 3.0 mm (0.118 in)

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

• Linearity: ±0.025 mm (±1 mil)

• Minimum Shaft Diameter: 25 mm (0.98 in)

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

• Ingress Protection: IP66

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

• Applications: Ideal for sleeve-bearing machinery where traditional case-mounted sensors cannot provide accurate measurements

CON021 Converter Module

• Function: Signal conditioning and linear output conversion for PR6423 sensors

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

• Rise Time: <15 μs

• Supply Voltage: –23 V to –32 V DC

• Output Voltage: –4 V to –20 V, configurable

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

• Ingress Protection: IP20

• Housing Material: LMgSi aluminum alloy

• Mounting: Panel mount via four M5x20 screws

Applications

• Power Generation: Steam and gas turbine shaft monitoring

• Petrochemical Industry: Compressor and pump axial displacement detection

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

• Maintenance & Safety: Supports predictive maintenance and API 670-compliant monitoring

FAQ

Q: What materials can the sensor measure?
A: The PR6423/014-030 is optimized for ferromagnetic steel such as 42CrMo4 or AISI 4140.

Q: Can the system handle high temperatures?
A: Yes, the sensor operates up to 150 °C, and the converter up to 100 °C.

Q: Is the output compatible with standard monitoring systems?
A: The CON021 provides a linear voltage output (–4 V to –20 V) suitable for integration with industrial monitoring and protection systems.

Q: Are similar sensors available for smaller shafts?
A: Yes, the PR6423 series includes probes suitable for shafts as small as 10 mm in diameter, with proportional scaling of measurement range and air gap.

Technical Specifications Table