Model: PR6424/00-010
Product Overview
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Datasheet Preview
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Commercial Path
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Technical Dossier
The EPRO PR6424 series is a family of eddy current displacement and proximity sensors manufactured by EPRO GmbH (now part of Baker Hughes / Bently Nevada ecosystem). These sensors are deployed extensively across global heavy industry — including petrochemical refineries, nuclear power stations, offshore platforms, and rotating machinery installations — where continuous, non-contact shaft displacement monitoring is a safety-critical requirement. The PR6424 series operates on the eddy current principle, providing high-resolution, temperature-stable measurements of radial and axial shaft position, typically interfaced with EPRO MMS 6000 or compatible vibration monitoring systems. Their IP67-rated housings and wide operating temperature ranges make them a standard specification in API 670-compliant machinery protection systems.
The PR6424 series was introduced by EPRO as a standardized eddy current sensor platform designed for compatibility with the CON 011, CON 021, and MMS 6120/6220 signal conditioning modules. Early variants (circa 1990s) featured fixed cable lengths and single-range sensitivity (8 mV/µm). Subsequent revisions introduced selectable sensitivity options, extended cable configurations via extension cables (TQ series), and improved EMI shielding for use in high-interference environments such as variable-frequency drive (VFD) motor rooms and high-voltage switchgear areas.
With the acquisition of EPRO by GE (and subsequently Baker Hughes), the PR6424 platform was maintained as a legacy-compatible line, ensuring backward compatibility with installed MMS 6000 series monitoring racks. The series entered its mature/sustaining phase circa 2015. New installations increasingly specify the Bently Nevada 3300 XL or 330100 series as modern equivalents, but the PR6424 remains the only drop-in replacement for existing EPRO-based machinery protection systems without requiring recalibration or rack modification. Long-term maintenance support for this series is therefore a primary procurement driver.
The following SKUs represent the verified PR6424 series range, classified by cable length, connector type, and sensitivity configuration. Each model is a discrete, orderable part number:
PR6424/00-010: Eddy current sensor, 5 mm range, 8 mV/µm sensitivity, 1.0 m integral cable, M12 tip
PR6424/00-020: Eddy current sensor, 5 mm range, 8 mV/µm sensitivity, 2.0 m integral cable, M12 tip
PR6424/00-030: Eddy current sensor, 5 mm range, 8 mV/µm sensitivity, 3.0 m integral cable, M12 tip
PR6424/00-050: Eddy current sensor, 5 mm range, 8 mV/µm sensitivity, 5.0 m integral cable, M12 tip
PR6424/00-100: Eddy current sensor, 5 mm range, 8 mV/µm sensitivity, 10.0 m integral cable, M12 tip
PR6424/01-010: Eddy current sensor, 5 mm range, 8 mV/µm, 1.0 m cable, armored jacket, M12 tip
PR6424/01-030: Eddy current sensor, 5 mm range, 8 mV/µm, 3.0 m cable, armored jacket, M12 tip
PR6424/02-010: Eddy current sensor, 5 mm range, high-temperature variant, 1.0 m cable, M12 tip
PR6424/02-030: Eddy current sensor, 5 mm range, high-temperature variant, 3.0 m cable, M12 tip
PR6424/03-010: Eddy current sensor, 5 mm range, stainless steel housing, 1.0 m cable, M12 tip
PR6424/03-030: Eddy current sensor, 5 mm range, stainless steel housing, 3.0 m cable, M12 tip
PR6424/04-010: Eddy current sensor, 5 mm range, ATEX/IECEx certified, 1.0 m cable, M12 tip
PR6424/04-030: Eddy current sensor, 5 mm range, ATEX/IECEx certified, 3.0 m cable, M12 tip
PR6424/05-010: Eddy current sensor, 5 mm range, extended temperature, ATEX, 1.0 m cable
PR6424/06-010: Eddy current sensor, 5 mm range, nuclear-grade housing, 1.0 m cable, M12 tip
PR6424/06-030: Eddy current sensor, 5 mm range, nuclear-grade housing, 3.0 m cable, M12 tip
PR6424/07-010: Eddy current sensor, 5 mm range, submersible IP68 variant, 1.0 m cable
PR6424/08-010: Eddy current sensor, 5 mm range, high-vibration mount, 1.0 m cable, M12 tip
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