Epro PR6424/018-021 16mm Eddy Current Sensor

Product Introduction

The Epro PR6424/018-021 16 mm Eddy Current Sensor is a high-precision non-contact displacement probe engineered for continuous vibration and shaft-position monitoring in demanding industrial environments. Utilizing advanced eddy-current measurement principles, it delivers accurate, drift-free measurements of both static and dynamic shaft movement, making it ideal for turbomachinery, compressors, motors, and pumps. Its rugged stainless-steel construction and exceptional thermal stability allow reliable operation in harsh process conditions for extended periods without recalibration.

Technical Specifications

Applications

• Turbomachinery Monitoring: Provides continuous measurement of shaft vibration and radial displacement for turbines and compressors.

• Bearing Gap and Rotor Position: Accurately detects shaft-to-bearing movement for predictive maintenance and early fault detection.

• Critical Pump & Motor Systems: Supports real-time protection against misalignment, imbalance, and cavitation.

• Industrial Condition Monitoring: Integrates seamlessly with Epro CON021 drivers and plant monitoring systems to supply actionable vibration data.

• Predictive Maintenance Programs: Supplies precise displacement signals for data historians and advanced diagnostic software in refineries and power plants.

Advantages

• High Accuracy and Stability: Maintains 8 mV/µm sensitivity with minimal temperature drift for reliable long-term measurements.

• Robust Construction: Stainless-steel, IP67-rated housing ensures excellent resistance to moisture, dust, and chemicals.

• Wide Operating Temperature: Performs consistently from −35 °C to +180 °C, suitable for high-temperature process areas.

• Fast Dynamic Response: DC to 10 kHz bandwidth captures rapid transient shaft movements and vibration events.

• Low Maintenance: Non-contact operation reduces wear, eliminates mechanical friction, and extends service intervals.

• Flexible Integration: Fully compatible with CON021 driver modules and most industrial vibration monitoring systems.

FAQ

1. What is the typical linear measuring range for this sensor?
   The PR6424/018-021 provides a linear range of about ±2 mm around its calibrated mid-gap, ideal for most standard vibration monitoring applications.

2. Which driver module is best suited for this sensor?
   The Epro CON021 driver is recommended, providing proper excitation, temperature compensation, and precise signal conditioning.

3. How is thermal stability maintained during extreme temperature changes?
   The sensor employs temperature-stable coil materials and relies on the CON021 driver’s compensation circuitry to maintain accuracy across −35 °C to +180 °C.

4. Can the sensor handle high vibration environments?
   Yes. It is designed to withstand continuous vibration levels up to 20 g within a 10–2 000 Hz frequency range without performance degradation.

5. Is this sensor compatible with monitoring systems other than Epro equipment?
   Yes, it can be integrated with third-party systems as long as proper impedance matching and calibration procedures are followed.

6. What is the importance of its frequency response capability?
   A DC to 10 kHz bandwidth allows the sensor to capture both slow shaft displacement and high-frequency vibration, essential for comprehensive diagnostics.

7. Does the PR6424/018-021 require field calibration?
   Field calibration is recommended during installation, using a micrometer gap reference to set the CON021 driver’s zero and gain.

8. Is the sensor suitable for use in hazardous or explosive areas?
   An ATEX-certified version is available, permitting safe operation in Zone 1 or Zone 2 hazardous environments when used with approved barriers.

9. How is electrical noise minimized in the signal output?
   The coaxial cable design, combined with the CON021 driver’s filtering, provides excellent immunity to electromagnetic interference.

10. What type of signal does the sensor output?
    It provides a voltage signal proportional to displacement (8 mV/µm), enabling direct interface with industrial vibration and condition monitoring systems.

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