Description
Product Description
Overview
The Emerson PR6423/010-040-CN Eddy Current Displacement Sensor paired with the CON021 Signal Converter provides a high-precision solution for monitoring critical rotating machinery. Designed for reliability in harsh industrial environments, this measurement chain enables non-contact detection of shaft vibration, axial displacement, and rotational position. Ideal for integration with Turbine Supervisory Instrumentation (TSI) systems, the setup ensures real-time monitoring of shaft dynamics to prevent mechanical failures.
How It Works
The system operates using the eddy current principle. The PR6423/010-040-CN sensor emits a high-frequency electromagnetic field. When a conductive shaft moves within this field, eddy currents are induced, altering the sensor coil’s impedance. The CON021 converter drives the sensor and translates these impedance variations into a stable, linear voltage signal suitable for PLCs or condition monitoring systems.
Key Features
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Linear output directly proportional to shaft displacement for accurate readings across the measurement range
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High-temperature resistance up to 180°C, suitable for turbine housings
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Pressure-sealed sensor housing to maintain integrity under high-pressure lubrication systems
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Wide frequency response up to 20 kHz to detect early-stage bearing faults
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Plug-and-play compatibility with matched cable lengths for consistent field performance
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Robust, IP68-rated sensor with IP20-rated cabinet-mount converter
Technical Specifications
| Feature |
Specification |
| Sensor Model |
PR6423/010-040-CN |
| Converter Model |
CON021 |
| Measuring Range |
4.0 mm (10 mm tip diameter) |
| Output Signal |
-2 V to -18 V standard voltage loop |
| Sensitivity |
4.0 V/mm (100 mV/mil) |
| Target Material |
Ferromagnetic steel (standard: 42CrMo4) |
| Frequency Response |
Up to 20 kHz |
| Temperature Rating |
-40°C to +180°C |
| Protection Class |
Sensor: IP68, Converter: IP20 |
| Cable/Connector |
Integrated with robust industrial connector |
Applications
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Radial Shaft Vibration Monitoring: Detects shaft orbiting within bearings
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Axial Shaft Positioning: Measures longitudinal displacement to prevent mechanical collisions
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Shaft Eccentricity Detection: Identifies bending or bow during startup
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Speed & Phase Reference (Keyphasor): Provides accurate RPM and phase timing for machinery diagnostics
FAQ
Q: Can the PR6423 sensor operate in high-temperature turbine environments?
A: Yes, the sensor tip is rated for continuous operation up to 180°C.
Q: Are CON021 and PR6423 interchangeable with other AMS/EPRO components?
A: They are designed for plug-and-play compatibility with matching cable lengths; mixing with other models may require recalibration.
Q: What shaft materials are compatible?
A: Standard calibration is for ferromagnetic steel such as 42CrMo4; non-ferrous targets require adjustments.
Q: What is the typical frequency response for vibration analysis?
A: The system reliably captures vibration signals up to 20 kHz, sufficient for early fault detection in bearings and rotors.
Q: Can the sensor be submerged in oil or other industrial fluids?
A: Yes, the PR6423 is pressure-sealed and rated IP68 for full immersion.
