Epro PR6423/003-031-CN Eddy Current Shaft Vibration Probe Sensor

Product Description

The PR6423/003-031-CN is an eddy-current proximity sensing probe developed for continuous monitoring of rotating machinery dynamics. When used with a CON021 signal conditioning unit, it provides accurate measurement of shaft vibration, axial displacement, and rotor position in critical equipment such as turbines, compressors, and large rotating drives.

The probe operates without physical contact, converting variations in the electromagnetic field into a stable electrical signal proportional to shaft movement. It is designed for reliable performance in harsh industrial environments where temperature fluctuation, oil contamination, and mechanical vibration are common.

Key Technical Specifications

• Product Type: Eddy-current proximity displacement probe

• Model: PR6423/003-031-CN

• Measurement Principle: Non-contact electromagnetic eddy-current sensing

• Probe Diameter: 8 mm

• Cable Length: 3 m integrated shielded cable

• Measurement Range: 0 – 2 mm (typical configuration)

• Linearity: ≤ ±1% full scale

• Sensitivity: approx. –7.87 V/mm (–200 mV/mil)

• Calibration Standard: Steel DIN 1.7225 / 42CrMo4

• Frequency Response: DC to 10 kHz (-3 dB)

• Operating Temperature: –35 °C to +180 °C

• Environmental Protection: IP67 (probe housing)

• Shock Resistance: 500 m/s²

• Continuous Vibration Resistance: 100 m/s²

• Certifications: CE, ATEX, IECEx, CSA

• Compliance Standards: API 670, ISO 10817-1, DIN 45670

System Integration

• Designed for use with CON021 signal conditioning module

• Provides stable analog output for vibration monitoring systems

• Suitable for integration into turbine and compressor protection systems

• Supports predictive maintenance and machinery condition diagnostics

Key Engineering Features

• Non-contact measurement eliminates mechanical wear and signal drift

• High linear accuracy ensures reliable vibration and displacement tracking

• Stable operation under oil mist, dust, and high-temperature environments

• Stainless steel probe construction for extended service life

• Suitable for continuous operation in demanding rotating machinery

Industrial Applications

• Gas and steam turbine shaft monitoring

• Centrifugal compressor vibration and displacement tracking

• Generator rotor position measurement

• Industrial pump imbalance and misalignment detection

• Heavy rotating machinery protection and condition monitoring systems

FAQ

Q1: Is this probe compatible with CON021 systems?
Yes, it is designed to operate with CON021 signal conditioners for complete measurement systems.

Q2: Can it withstand high-temperature environments?
Yes, the probe is rated up to 180 °C and is suitable for turbine-grade applications.

Q3: What is the advantage of the 3 m cable version?
It is optimized for installations where the converter is located at a moderate distance from the measurement point.