Description

Product Overview

The Emerson PR6424/014-140 CON021 is a high-precision, non-contact 8mm eddy current proximity sensor developed under the industry-renowned epro machine monitoring product line. This sensor is specifically engineered to measure dynamic shaft vibration, axial position, radial displacement, and eccentricity in critical high-speed rotating machinery.

By utilizing a non-contact electromagnetic measurement principle, the PR6424/014-140 CON021 captures micron-level changes in gap distance between the sensor tip and the metallic shaft surface. Because it does not make physical contact with the shaft, it eliminates mechanical wear entirely, delivering long-term signal stability for predictive maintenance and automated machinery protection systems.

Advanced Capabilities and Functional Benefits

• Exceptional Signal Clarity: Advanced internal electronics are optimized to suppress high-frequency electrical noise and electromagnetic interference (EMI), ensuring a clean signal for critical DCS or machine protection monitoring.
• Micron-Level Position Tracking: Generates a stable eddy-current field capable of detecting subtle, high-frequency physical deviations, allowing operators to spot shaft misalignment before it damages bearings.
• Rugged Stainless Steel Construction: Fully hermetic housing protects the sensor’s delicate internal coils from high pressures, thermal cycling, and harsh chemical attack by synthetic turbomachinery lubricants.
• Moisture-Proof Junction Integrity: The CON021 configuration includes an specialized armored cable assembly and heavy-duty connector designed to block oil, water, and steam ingress at critical termination boundaries.
• Zero-Wear Diagnostics: The non-contact design allows the sensor to continuously evaluate steam or gas turbine shafts running at thousands of RPMs without degrading, minimizing scheduled maintenance downtime.

Technical Specifications

Measurement & Electrical Performance

• Sensor Tip Diameter: 8 mm
• Measurement Principle: Non-contact Eddy Current
• Target Material Compatibility: Ferromagnetic steel (Standard calibration profile)
• Signal Integration Compatibility: Optimized for Emerson MMS 6000 and AMS protection systems

Physical & Environmental Properties

• Enclosure Footprint Dimensions: 12.1 cm (W) x 5.2 cm (H) x 16.6 cm (D)
• Net Hardware Weight: 0.34 kg (approx. 340 grams)
• Housing Material: High-grade industrial stainless steel
• Ingress Protection Rating: IP67 or higher at the sensor head assembly
• Country of Origin: United States (USA)
• Hardware Lifecycle Status: Legacy Hardware Core (Discontinued by manufacturer Dec 31, 2018)

Industrial Applications

• Steam Turbine Eccentricity Analysis: Monitoring shaft bow and thermal growth during critical slow-speed turning gear operations before full run-up synchronization.
• Gas Turbine Axial Thrust Tracking: Constantly tracking horizontal shaft position inside high-temperature turbine casings to prevent catastrophic rotor-to-stator friction.
• Large Centrifugal Compressor Supervision: Capturing high-frequency radial shaft vibration parameters to warn control systems of aerodynamic surge conditions or unbalance.
• Industrial Gearbox Shaft Misalignment: Measuring shaft runout in heavy industrial gearboxes subjected to variable torque loads in power generation or oil and gas facilities.