Epro PR6424/116-021 16mm Eddy Current Sensor

The Epro PR6424/116-021 Eddy Current Sensor is a precision proximity probe designed for non-contact measurement of shaft vibration, displacement, and position in rotating machinery. As part of the widely adopted PR6424 series, this model is optimized for critical condition monitoring applications and integrates seamlessly with Epro’s CON series converters, ensuring accurate linearization and reliable signal transmission.

With a 16 mm sensor head diameter and robust stainless-steel body, the PR6424/116-021 is specifically engineered to perform in harsh industrial environments such as power plants, oil & gas facilities, and heavy machinery operations. Its high accuracy and frequency response make it indispensable in predictive maintenance and machinery protection systems.

Product Parameters

Product Applications

The PR6424/116-021 is suitable for a wide range of industrial monitoring and protection systems. Main applications include:

• Steam and Gas Turbines – Monitoring shaft vibration and axial displacement to detect instability and prevent mechanical damage.

• Compressors – Continuous measurement of shaft dynamics for imbalance, oil whirl, or surge conditions.

• Pumps – Identifying early signs of cavitation, rotor misalignment, or shaft deflection.

• Electric Motors & Generators – Ensuring stable shaft performance under varying loads.

• Bearing Monitoring – Tracking relative shaft movement to detect lubrication film failures.

• Condition Monitoring Systems – Integration with Epro MMS and third-party systems for predictive maintenance.

Product Advantages

• High Accuracy: Delivers reliable measurements with linearity within ±1% of full scale.

• Non-Contact Technology: Ensures zero mechanical wear and extended monitoring capability.

• Robust Design: Stainless-steel construction makes it resistant to corrosion and industrial stress.

• Temperature Resistance: Operates efficiently up to +180 °C at the probe tip.

• Wide Frequency Response: Suitable for both static displacement and dynamic vibration monitoring.

• System Compatibility: Fully compatible with Epro converters such as CON021 and CON041.

• Interference Protection: Shielded cable design minimizes electromagnetic disturbances.

• Proven Reliability: Used in critical rotating equipment worldwide for continuous operation.

FAQ

1. How does the PR6424/116-021 measure shaft vibration?

   It operates on the eddy current principle, where changes in the magnetic field induced by the shaft surface generate a voltage proportional to displacement.

2. Which converter is best suited for this sensor?

   The sensor pairs optimally with CON021 or CON041, which linearize the probe signal and provide standardized voltage outputs.

3. What is the maximum dynamic frequency response supported?

   The sensor provides a frequency response from DC to 20 kHz, suitable for detecting both static and dynamic shaft movements.

4. Can it be used for both radial and axial monitoring?

   Yes, depending on mounting orientation, the sensor can measure either radial shaft vibration or axial thrust position.

5. How does the probe maintain measurement linearity?

   The matched probe and converter combination ensures linearity within ±1% of the full-scale measuring range.

6. What materials are recommended for target shafts?

   The sensor is designed primarily for conductive materials, with steel being the most common application target.

7. Does the sensor require recalibration after installation?

   No, it is factory-calibrated with its converter, ensuring accurate operation without additional adjustments.

8. How is signal integrity preserved in electrically noisy environments?

   The integrated coaxial cable and shielding protect the output from EMI and RFI interference.

9. Can this sensor be integrated into third-party monitoring platforms?

   Yes, after conversion via CON modules, the standardized voltage output can interface with most condition monitoring systems.

10. What makes this sensor suitable for turbine and compressor applications?

    Its non-contact operation, wide frequency response, and thermal resilience ensure accurate measurements under the demanding conditions of high-speed rotating machinery.