Description
Product Overview
The EPRO PR6424/014-040 is a specific configuration of the industry-standard Eddy Current Proximity Transducer System from EPRO (Baker Hughes Bently Nevada), designed for the non-contact measurement of rotating shaft parameters. This part number represents a complete, ready-to-install sensor package. The PR6424 denotes the core 8mm eddy current system. The suffix
/014-040is a key code that precisely defines the physical and electrical characteristics of the included components: /014 specifies the probe assembly details (such as thread type, length, and temperature rating), and /040 specifies the extension cable assembly details (primarily its length). This system’s primary function is to continuously and accurately measure shaft relative vibration and axial position (thrust position), and to provide a Keyphasor® timing reference. It operates by generating an electromagnetic field at the probe tip; changes in the distance to the conductive shaft modulate this field, and the connected proximitor (signal conditioner) converts these changes into two isolated, calibrated output signals: a DC voltage proportional to average gap (position) and an AC voltage proportional to dynamic vibration.The value of the EPRO PR6424/014-040 lies in its precision, reliability, and application-specific configuration. It is the fundamental sensory element for online machinery protection systems on critical equipment. The predefined
/014-040configuration ensures that the installer receives the exact probe (with the correct length and thread for the mounting location) and the exact cable length needed to reach the junction box or monitor cabinet, eliminating guesswork and potential errors. This system provides the essential data that protection systems like the Bently Nevada 3500 or EPRO MMS 6000 use to generate alarms and trips, preventing catastrophic failures due to imbalance, misalignment, bearing wear, or rotor rub. For maintenance and reliability professionals, correct selection and installation of this transducer system is critical for ensuring machine safety, enabling condition-based maintenance, and maximizing asset availability.Technical Specifications
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Parameter Name
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Parameter Value
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Product Model
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EPRO PR6424/014-040
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Manufacturer
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EPRO (Baker Hughes Bently Nevada)
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Product Type
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Complete Eddy Current Proximity Transducer System (8mm)
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System Components
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1. Probe Assembly (defined by
/014), 2. Extension Cable Assembly (defined by /040). Note: The Proximitor (e.g., PR6424/000-030) is typically ordered separately under its own part number, unless this is part of a larger kit. |
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Probe Details (
/014) |
Specifies:
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Key Features and Advantages
EPRO PR6424/014-040 excels as a configured, reliable measurement solution. Its key advantage is the pre-defined combination of probe and cable, ensuring they are mechanically and electrically matched. The
/014probe code guarantees it has the correct length to reach the shaft from the mounting bracket and the correct thread to fit the installed holder or bushing. The /040cable length is chosen to optimally route from the probe to the termination point without excessive slack or tension, which is important for long-term reliability and noise immunity.High measurement integrity and robust construction are fundamental. The system is engineered for stable, accurate performance in harsh environments (heat, oil, steam, vibration). The use of high-quality, shielded cable (
/040) minimizes electrical noise pickup, which is critical for obtaining clean vibration signals. The probe (/014) is built to withstand the physical and thermal demands of its installation location. This robustness translates to minimal drift and long service life, which is essential for protection systems where sensor recalibration is highly undesirable.Global standardization and simplified procurement are significant benefits. The PR6424 system with its numerical suffix coding is an industry standard. Engineers can specify the exact needed configuration (
/014-040) on drawings, and procurement can order it as a single line item, knowing exactly what will be delivered. This eliminates compatibility issues between separately ordered probes and cables. For maintenance, keeping a spare PR6424/014-040on the shelf means having a ready replacement for a specific measurement point, drastically reducing downtime in case of a sensor failure. In summary, this configured system provides a dependable, off-the-shelf building block for machinery monitoring, reducing engineering and installation complexity while delivering trusted performance.Application Areas
The EPRO PR6424/014-040 is used for monitoring shaft radial vibration, axial position, and speed (Keyphasor) on virtually all types of high-speed rotating equipment in critical service.
Its primary application is in turbomachinery protection systems:
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Gas Turbines & Steam Turbines: For bearing cap vibration and shaft position monitoring.
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Centrifugal & Axial Compressors: Essential for mechanical protection and surge avoidance.
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Large Pumps & Fans: Such as boiler feed pumps, cooling water pumps, and ID/FD fans.
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Hydro Turbines, Generators, and Expanders.
The specific
/014-040configuration would be selected for points where the probe mounting geometry and cable run distance match this particular part number’s specifications. It is a ubiquitous component in power generation, oil & gas, petrochemical, and other heavy industries.Related Products
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PR6423/PR6424 Series Proximitor (e.g., PR6424/000-030): The signal conditioner required to power the probe and generate the output signals. This is often the third component purchased separately.
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Probe Mounting Hardware (Holders, Locknuts): Used to secure the probe in the machine casing.
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Bently Nevada 3500/42M or EPRO MMS 6000 Monitor: The system that accepts the signals from the transducer system for display, alarming, and protection.
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EPRO TK-3 Transducer Tester: A portable device for troubleshooting and verifying the health of the installed PR6424 system.
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Spare Probes and Cables: Available under their individual
/xxxcodes (e.g., a spare/014probe or a spare/040cable).
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