Emerson PR6423/10R-030-CN Eddy Current Sensor (8mm Tip)

Emerson PR6423/10R-030-CN Eddy Current Sensor – Precision Displacement Monitoring

The Emerson PR6423/10R-030-CN is an industrial-grade eddy current proximity sensor engineered for high-accuracy displacement and vibration monitoring in demanding DCS environments. Featuring an 8mm sensing tip with reverse mount configuration, this sensor delivers reliable non-contact measurement for rotating machinery, turbine monitoring, and critical process control applications.

Technical Specifications

• Model: PR6423/10R-030-CN
• Sensing Tip Diameter: 8mm
• Cable Length: 3.0 meters
• Measurement Range: 2mm (0-2mm linear range)
• Mount Type: Reverse mount (10R configuration)
• Operating Temperature: -40°C to +125°C
• Output Signal: Analog voltage proportional to gap distance
• Frequency Response: DC to 10 kHz
• Thread Size: M18 x 1.5
• Housing Material: Stainless steel (corrosion-resistant)

Application Scenarios

This eddy current sensor excels in multiple industrial monitoring contexts:

• Turbomachinery Monitoring: Real-time shaft displacement and radial vibration measurement in steam turbines, gas turbines, and compressors
• Bearing Condition Monitoring: Detect bearing wear, misalignment, and abnormal clearances before catastrophic failure
• Rotor Dynamics Analysis: Capture critical speed transitions, unbalance, and rotor eccentricity in rotating equipment
• Process Control Systems: Integrate with Emerson Ovation DCS and EPRO monitoring systems for predictive maintenance strategies
• Quality Assurance: Non-contact thickness measurement and gap control in manufacturing processes

Innovative Solutions & Benefits

The PR6423/10R-030-CN incorporates advanced design features that set it apart:

• Reverse Mount Design: Enables installation in space-constrained environments where traditional forward-mount sensors cannot fit
• Extended Cable Length: 3-meter integral cable reduces installation complexity and eliminates connection points that could introduce noise
• Wide Temperature Range: Operates reliably in extreme thermal environments from cryogenic to high-temperature applications
• High-Frequency Response: Captures transient events and high-speed vibration phenomena up to 10 kHz
• Stainless Steel Construction: Withstands corrosive atmospheres in chemical processing, offshore platforms, and power generation facilities

Integration & Compatibility

Designed for seamless integration with Emerson EPRO monitoring systems including CON021, CON041, and TM0181 proximitor modules. Compatible with Ovation DCS I/O cards and third-party vibration monitoring systems supporting standard eddy current probe interfaces. The sensor pairs with driver modules to provide linearized 4-20mA or -10V to +10V outputs for PLC and SCADA integration.

Installation & Calibration

The reverse mount configuration allows installation through threaded bores with limited access. Factory calibration against AISI 4140 steel targets ensures measurement accuracy within ±1% of full scale. Field calibration kits available for site-specific target materials. Recommended installation torque: 40-50 Nm with thread sealant suitable for operating temperature range.

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Quality Assurance & Support

Every PR6423/10R-030-CN sensor undergoes rigorous factory testing including temperature cycling, vibration resistance, and EMI immunity verification. Backed by Emerson's global service network and comprehensive technical documentation. Long-term spare parts availability ensures lifecycle support for critical infrastructure projects.

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