Epro PR6424/017-121 16mm Eddy Current Sensor

Product Introduction

The Epro PR6424/017-121 16 mm Eddy Current Sensor is a high-accuracy, non-contact displacement probe engineered for continuous vibration and shaft-position monitoring in heavy-duty industrial environments. Built on Epro’s proven PR6424 platform, it uses advanced eddy-current technology to provide precise, drift-free measurement of dynamic and static shaft movements. Its 16 mm stainless-steel sensing head ensures superior stability, while its rugged design allows consistent operation under high temperatures, high vibration, and harsh process conditions.

Technical Specifications

Applications

• Turbomachinery Monitoring – Measures radial shaft displacement and vibration in turbines, compressors, and generators.

• Bearing Gap and Rotor Position – Provides real-time detection of rotor-to-bearing movement for predictive maintenance.

• Critical Pumps & Motors – Enables early warning of imbalance, misalignment, and cavitation.

• Industrial Condition Monitoring – Seamlessly integrates with Epro CON021 drivers and plant-wide vibration monitoring systems.

• Predictive Maintenance Programs – Supplies accurate displacement data for data historians and diagnostic software in refineries, power plants, and chemical facilities.

Advantages

• High Accuracy & Stability – Maintains 8 mV/µm sensitivity with minimal thermal drift for reliable long-term monitoring.

• Robust Construction – Stainless-steel IP67 housing offers exceptional resistance to dust, moisture, and process chemicals.

• Wide Temperature Capability – Performs consistently from −35 °C to +180 °C for extreme process environments.

• Fast Dynamic Response – DC to 10 kHz bandwidth captures rapid transient vibration and shaft movement.

• Low Maintenance – Non-contact operation eliminates mechanical wear, extending service life and reducing downtime.

• Flexible Integration – Fully compatible with Epro CON021 driver modules and most industrial monitoring systems.

FAQ

1. What is the recommended driver module for the PR6424/017-121?
   The Epro CON021 driver is the preferred companion, ensuring accurate excitation, calibration, and temperature compensation for this sensor.

2. How does the sensor maintain accuracy across large temperature changes?
   Temperature-stable coil materials and the CON021’s internal compensation circuits preserve measurement accuracy from −35 °C to +180 °C.

3. What frequency range can the sensor reliably capture?
   It provides a flat frequency response from DC to 10 kHz (−3 dB), enabling detection of both slow displacement and high-speed vibration events.

4. Can this sensor operate in areas with strong electromagnetic interference?
   Yes, its coaxial cable shielding and driver filtering deliver excellent immunity to electrical noise and EMI.

5. Is the sensor suitable for high-vibration installations?
   Absolutely. It withstands continuous vibration up to 20 g across the 10–2 000 Hz range without affecting signal integrity.

6. Does the PR6424/017-121 require field calibration after installation?
   Field calibration is recommended to fine-tune the driver gain and zero settings using a precision micrometer gap reference.

7. Can it be used in hazardous or explosive environments?
   An ATEX-certified variant is available, permitting safe deployment in Zone 1 and Zone 2 hazardous areas when paired with approved safety barriers.

8. What type of electrical output does the sensor provide?
   It outputs a voltage signal proportional to shaft displacement at 8 mV/µm, compatible with industrial vibration and monitoring equipment.

9. Is it possible to integrate this sensor into non-Epro monitoring systems?
   Yes. With correct impedance matching and calibration, the PR6424/017-121 integrates seamlessly with third-party vibration monitoring platforms.

10. How is mechanical wear avoided in continuous operation?
    The non-contact eddy-current principle means no physical friction with the shaft, eliminating mechanical wear and extending operational life.

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