Epro CON021+PR6424/002-031 Eddy Current Vibration Sensor System

Product Description

The PR6424/002-031 paired with the CON021 signal converter is an eddy-current proximity measurement system designed for continuous monitoring of rotating machinery conditions. It is widely applied in turbines, compressors, and pump assemblies where accurate tracking of shaft vibration, axial displacement, and thrust position is required.

The system operates on a non-contact electromagnetic principle, converting changes in the eddy-current field into a stable analog signal proportional to shaft movement. It is engineered for harsh industrial environments, maintaining measurement stability under high temperature, vibration, and contamination exposure.

Key Technical Specifications

• System Type: Eddy-current proximity vibration and displacement monitoring system

• Probe Model: PR6424/002-031

• Converter Model: CON021

• Measurement Principle: Electromagnetic eddy-current non-contact sensing

• Probe Diameter: 16 mm

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

• 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)

• Cable Length: 3 m integrated shielded cable

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

• Calibration Material: Steel DIN 1.7225 / 42CrMo4

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

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

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

• Shock Resistance: 500 m/s²

• Vibration Resistance: 100 m/s² continuous

• Certifications: CE, ATEX, IECEx, CSA

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

System Overview

• Non-contact eddy-current probe positioned near rotating shaft surface

• CON021 module conditions raw signal into standardized analog output

• Enables continuous monitoring of vibration and axial displacement

• Designed for integration into machinery protection and condition monitoring systems

• Ensures stable performance under thermal and mechanical stress conditions

Key Engineering Features

• Non-contact operation eliminates mechanical wear and signal degradation

• High linearity enables precise vibration and displacement measurement

• Stable output under oil mist, dust, and high-vibration environments

• Stainless steel probe construction for long service life

• Compatible with VM600, MMS6000, CSI 6500 and similar monitoring systems

Industrial Applications

• Gas and steam turbine shaft monitoring

• Centrifugal and axial compressor protection systems

• Generator rotor displacement measurement

• Industrial pump condition monitoring

• Gearbox and rotating machinery diagnostics

FAQ

Q1: What is the role of CON021 in this system?
It converts the raw probe signal into a standardized analog output for monitoring and protection systems.

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

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