EPRO CON021+PR6424/007-010 Eddy Current Shaft Sensor Probe

Overview

The EPRO PR6424/007-010 sensor combined with the CON021 converter provides a high-precision, non-contact eddy current displacement and vibration measurement solution. Engineered for large rotating machinery, including steam and gas turbines, compressors, pumps, and gearboxes, this system delivers accurate radial vibration, axial displacement, eccentricity, and rotational speed monitoring. It supports predictive maintenance and machine protection in accordance with API 670 standards, optimized for larger shafts and applications requiring extended measurement range compared to the PR6423 series.

Technical Specifications

PR6424/007-010 Sensor Probe

• Sensor Type: 10 mm eddy current displacement and vibration probe (PR6424 series)

• Linear Measurement Range: 2 mm

• Initial Air Gap: 1.0 mm

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

• Linearity: ±0.025 mm (±1 mil)

• Minimum Shaft Diameter: 35 mm (optimized for heavy-duty rotors)

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

• Protection Class: IP66

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

CON021 Converter Module

• Function: Signal conditioning with stable, linear output

• 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 (configuration-dependent)

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

• Protection Class: IP20

• Housing Material: LMgSi alloy

Applications

• Power Generation: Shaft vibration monitoring for steam and gas turbines

• Petrochemical Industry: Axial displacement monitoring for compressors and pumps

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

• Heavy Rotating Equipment: Optimized for larger shafts where PR6424 is preferred over PR6423

FAQ

Q: What parameters does the PR6424/007-010 measure?
A: Radial shaft vibration, axial displacement, eccentricity, and rotational speed.

Q: What is the operating temperature range?
A: Sensor: –40°C to +150°C; Converter: –30°C to +100°C.

Q: How does PR6424 compare to PR6423 series?
A: PR6424 supports larger shaft diameters, extended measurement range, and maintains high linearity and sensitivity for heavy-duty rotating equipment.