Emerson EPRO CON021+PR6423/010-120 Eddy Current Sensor System

⚡ Emerson EPRO CON021+PR6423/010-120 Eddy Current Sensor System

The Emerson EPRO CON021+PR6423/010-120 represents a complete eddy current measurement solution combining the CON021 signal converter with the PR6423/010-120 proximity probe. This integrated system delivers non-contact displacement measurement for rotating machinery monitoring, enabling predictive maintenance strategies that prevent catastrophic failures in critical assets.

🔬 Technical Specifications

CON021 Signal Converter:

• Output Signal: 4-20mA or -10V to +10V configurable
• Frequency Response: DC to 10 kHz (-3dB)
• Linearity: ±0.5% of full scale
• Power Supply: 24V DC ±10%
• Operating Temperature: -20°C to +70°C
• Housing: DIN rail mountable enclosure with LED diagnostics

PR6423/010-120 Proximity Probe:

• Measurement Range: 0-120 mil (0-3.0 mm)
• Thread Size: M18 × 1.5 or 3/4"-16 UNF
• Cable Length: 10 meters standard (custom lengths available)
• Target Material: Ferrous metals (steel, iron)
• Temperature Range: -40°C to +125°C probe tip
• Protection Rating: IP67 sealed construction

🏭 Industrial Applications

Turbomachinery Monitoring: Track radial shaft position and vibration in steam turbines, gas turbines, and compressors where bearing health directly impacts plant availability and safety margins.

Pump & Motor Diagnostics: Detect misalignment, bearing wear, and rotor eccentricity in high-speed pumps, motors, and generators before minor issues escalate into forced outages.

Thrust Position Measurement: Monitor axial shaft movement in rotating equipment to prevent thrust bearing failures and maintain optimal clearances in multi-stage machinery.

💡 Advanced Solutions

✅ Dual-Channel Capability: Deploy multiple probe/converter pairs for XY radial position mapping and orbit analysis, revealing rotor dynamics invisible to single-point measurements

✅ API 670 Compliance: Meets petroleum industry standards for machinery protection systems, ensuring acceptance in refineries, petrochemical plants, and offshore platforms

✅ Self-Diagnostic Features: Built-in OK relay and fault detection identify cable breaks, probe damage, and out-of-range conditions before they compromise safety systems

✅ Retrofit Compatibility: Direct replacement for legacy Bently Nevada and other eddy current systems, preserving existing mounting hardware and cabling infrastructure

🔧 System Integration

The CON021 converter interfaces seamlessly with DCS, PLC, and SCADA systems via industry-standard analog outputs. Configurable scaling allows direct engineering unit display without external signal conditioning. The system supports both grounded and isolated installations, adapting to diverse electrical environments without ground loop interference.

📊 Measurement Principle

Eddy current technology generates a high-frequency electromagnetic field at the probe tip. When a conductive target (shaft surface) enters this field, induced eddy currents create a secondary field that opposes the primary field. The resulting impedance change is linearized and converted to a proportional output signal representing gap distance with micrometer-level resolution.

📦 Complete Package Includes

• 1 × CON021 Signal Converter with DIN rail mounting kit
• 1 × PR6423/010-120 Proximity Probe (10m cable, 120 mil range)
• Installation manual with calibration procedures
• Factory calibration certificate traceable to NIST standards

Protect your critical rotating assets with proven Emerson EPRO measurement technology. The CON021+PR6423/010-120 system delivers the accuracy and reliability your predictive maintenance program demands.

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