Emerson EPRO CON021+PR6424/010-140 Eddy Current Sensor Probe

Product Description

The EPRO PR6424/010-140 system provides high-precision, non-contact displacement and vibration monitoring for critical rotating machinery. Designed for larger shafts and heavy-duty applications, this solution delivers accurate measurements of radial vibration, axial displacement, shaft eccentricity, and rotational speed. Combined with the CON021 converter module, it ensures stable and linear signal output suitable for integration into advanced monitoring systems.

Sensor Probe – PR6424/010-140

• Measurement Type: Eddy current displacement and vibration

• Probe Tip: 10 mm

• Linear Measurement Range: 2 mm (80 mils)

• Initial Air Gap: 1.4 mm (55 mils)

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

• Linearity (DSL): ±0.025 mm (±1 mil) within 0–45 °C

• Minimum Shaft Diameter: 35 mm (optimized for larger rotors)

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

• Protection Class: IP66 (IEC 60529)

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

• Applications: Shaft radial vibration, axial displacement, eccentricity, rotational speed measurements

Converter Module – CON021

• Function: Signal conditioning and linear conversion for PR6424 probes

• Frequency Response: 0–20,000 Hz (–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

• Protection Class: IP20

• Housing Material: LMgSi alloy

Applications

• Steam and gas turbine shaft vibration monitoring

• Axial displacement measurement in pumps and compressors

• Gearbox vibration and fan rotor eccentricity detection

• Monitoring of larger shaft diameters where PR6424 probes are preferred over PR6423

FAQ

Q: Can this probe measure non-ferrous shafts?
A: The sensor is optimized for ferromagnetic materials; non-ferrous targets may require calibration or different probe types.

Q: How does PR6424/010-140 differ from PR6423 series?
A: PR6424 probes provide a longer linear range and are suited for larger shafts, while PR6423 is designed for smaller-diameter rotors and lighter-duty applications.