The EMERSON PR6424-011-140 is an eddy current sensor (also called a proximity probe) used for non-contact vibration and displacement measurement in industrial machinery.
Here are its key functions and applications:
1. Primary Functions
Vibration Monitoring:
Measures shaft vibration in rotating equipment (turbines, compressors, motors, pumps) to detect imbalance, misalignment, or bearing wear.
Converts mechanical vibration into an electrical signal (typically 0 to -20V DC or 4-20mA).
Displacement Measurement:
Detects axial/radial shaft position (e.g., thrust position in steam turbines).
Provides high-resolution measurements (microns/mils) for precise clearance monitoring.
Condition Monitoring & Protection:
Used in machinery protection systems (MPS) to prevent catastrophic failures.
Integrates with Bently Nevada 3500/3300 monitoring systems (or similar).
2. Key Features
Non-contact sensing (avoids mechanical wear).
Wide frequency response (0 to 10 kHz or higher).
High temperature tolerance (up to +180°C / 356°F with proper cabling).
Hazardous area certifications (ATEX/IECEx for explosive environments).
3. Typical Applications
Power generation (gas/steam turbines, generators)
Oil & gas (compressors, pumps, gearboxes)
Heavy industry (paper mills, steel plants)
Aerospace (engine testing)
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