Epro CON021+PR6424/002-030 Eddy Current Shaft Vibration Sensor

Product Description

The PR6424/002-030 paired with the CON021 signal converter is an eddy-current based proximity measurement solution developed for continuous monitoring of rotating machinery behavior. It is engineered for radial vibration detection, axial displacement tracking, and thrust position supervision in turbines, compressors, and similar high-speed rotating assets.

The system operates on a non-contact measurement principle, providing stable analog output proportional to shaft movement. It is designed for environments where thermal stress, oil contamination, and mechanical vibration are present, ensuring consistent signal integrity for protection and condition monitoring systems.

Key Technical Specifications

• System Type: Eddy-current proximity displacement monitoring system

• Probe Model: PR6424/002-030

• Converter Model: CON021

• Measurement Principle: Non-contact eddy-current induction

• Sensor Tip Diameter: 16 mm

• Measurement Range: 0 – 2 mm

• Linearity: ≤ ±1% full scale

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

• Nominal Gap Voltage: –12 V DC

• Output Signal: –4 V to –20 V DC linear range (extended: –1 V to –22 V DC)

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

• Supply Voltage: –24 V DC (operating range –18 V to –30 V DC)

• Cable Length: 1 m integrated lead (optional extensions available)

• Calibration Material: Steel DIN 1.7225 / 42CrMo4

• Operating Temperature (Probe): –35 °C to +180 °C

• Operating Temperature (Converter): –25 °C to +70 °C

• Environmental Protection: IP65 (probe), IP20 (converter)

• Shock Resistance: 500 m/s²

• Vibration Resistance: 100 m/s² continuous

• Weight: 0.32 kg

• Certifications: CE, ATEX, IECEx, CSA

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

System Architecture Overview

• Eddy-current probe installed close to rotating shaft surface without physical contact

• CON021 module processes raw sensor signal into standardized analog output

• Enables continuous measurement of vibration and axial displacement

• Designed for integration into machinery protection and condition monitoring systems

• Ensures stable signal transmission under harsh mechanical and thermal conditions

Key Engineering Features

• Non-contact sensing eliminates mechanical wear and signal drift

• High resolution measurement suitable for predictive maintenance applications

• Stable performance in oil mist, dust, and high vibration environments

• Stainless steel probe construction for durability in harsh operating conditions

• Compatible with monitoring platforms such as VM600, MMS6000, and CSI 6500

Industrial Applications

• Gas and steam turbine shaft monitoring

• Centrifugal compressor vibration and position tracking

• Generator rotor displacement measurement

• Industrial pump condition monitoring

• Gearbox and rotating equipment protection systems

FAQ

Q1: What role does the CON021 module play?
It converts and conditions the probe signal into a standardized analog output for monitoring and protection systems.

Q2: Can this system operate in high-temperature environments?
Yes, the probe supports up to 180 °C and is designed for turbine and compressor applications.

Q3: Is it compatible with third-party monitoring systems?
Yes, it is widely used with systems such as VM600, MMS6000, and CSI 6500.