Product Overview

• Part No: PR6423/002-041
• Brand: EMERSON / EPRO (Germany)

• Category: 8mm Eddy Current Proximity Probe PR6423/002-041 is an 8mm non-contact eddy current probe manufactured by EPRO, now part of Emerson. It must work together with the matching CON041 signal converter (proximitor) to form a complete measurement unit. Based on eddy current induction principle, it measures dynamic displacement between probe tip and metal target without physical contact. The model coding defines thread specification, cable configuration and cable length; the suffix -041 stands for 10 meters integrated PTFE cable. It transmits raw gap signals to AMS 6500 monitor modules such as A6110, A6210, A6220 for continuous turbomachinery protection, fully compliant with API 670 standard. Widely adopted as maintenance spare for power plant and petrochemical rotating equipment monitoring systems.

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Core Features

• 8mm standard probe head, M10×1 mounting thread
• Linear measurement range: 0–2 mm
• Nominal incremental scale factor: 8 V/mm (±5%)
• Integrated 10-meter high-temperature PTFE cable, corrosion-resistant
• Non-contact measurement, no mechanical wear on rotating shafts
• High immunity to oil mist, steam and vibration in turbine enclosures
• Calibrated for ferromagnetic steel target (42CrMo4 / AISI 4140)
• Compatible with CON041 proximitor and AMS6500 series monitor cards
• IP66 protection grade; stainless steel housing, PEEK probe tip

• Suitable for 24/7 continuous operation on critical turbomachinery

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Technical Specifications

• Probe Size: 8mm tip, M10×1 thread
• Linear Range: 2 mm
• Recommended Initial Air Gap: 0.5 mm
• Scale Factor: 8 V/mm ±5%
• Minimum target shaft diameter: 25 mm
• Cable Length: 10 m (defined by suffix -041)
• Sensor head temperature: -35°C ~ +200°C
• Cable operating temperature: -35°C ~ +150°C
• Matching Proximitor: CON041

• Protection Class: IP66

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Compatibility & Application

• Matched hardware: CON041 proximitor; AMS6500 modules A6110, A6210, A6220
• Typical measurements: shaft relative vibration, thrust position, shaft eccentricity
• Industry: thermal power plants, combined-cycle stations, oil & gas, petrochemical
• Equipment: steam turbines, gas turbines, centrifugal compressors, generators