Epro PR6424/119-121 16mm Eddy Current Sensor

The Epro PR6424/119-121 Eddy Current Sensor is a high-precision, non-contact sensor designed for monitoring shaft vibration, displacement, and relative movement in rotating machinery. With a 16 mm sensor head diameter and a weight of 0.2 kg, this sensor is ideal for heavy-duty industrial applications requiring high accuracy and reliable performance in harsh environments.

Part of the Epro PR6424 series, the PR6424/119-121 is specifically designed for high-temperature and high-dynamic applications. Utilizing the eddy current principle, it provides accurate measurements on conductive targets without physical contact, reducing wear and improving the longevity of both the sensor and the monitored equipment.

The sensor is fully compatible with Epro CON021 and CON041 converters, allowing integration into turbine protection systems, vibration monitoring setups, and distributed control systems for critical machinery.

Product Specifications

Product Applications

The PR6424/119-121 Eddy Current Sensor is used in a wide range of industrial applications that require precise monitoring of rotating equipment:

• Turbomachinery Monitoring – Shaft displacement and vibration monitoring in steam and gas turbines.

• Power Generation – Continuous monitoring of turbine-generator shafts for early fault detection.

• Oil & Gas Industry – Monitoring pumps, compressors, and rotating machinery in refineries and offshore platforms.

• Steel & Metallurgy – Condition monitoring for rolling mills, fans, and industrial drives.

• Marine & Offshore – Shaft line monitoring in propulsion systems and auxiliary machinery.

• Industrial Process Equipment – Vibration and displacement monitoring for compressors, mixers, and high-speed rotating equipment.

Product Advantages

The Epro PR6424/119-121 offers several technical advantages for industrial monitoring systems:

• Non-Contact Measurement: Ensures no mechanical wear and high reliability over long-term operation.

• High Precision: Provides accurate and linear measurements for both vibration and displacement.

• Rugged Design: Stainless steel housing with IP65 rating protects against dust, moisture, and industrial contaminants.

• Wide Frequency Range: Up to 10 kHz, allowing detection of both slow displacements and high-frequency vibrations.

• Seamless Integration: Fully compatible with CON021 and CON041 converters.

• Environmental Resilience: Operates reliably in temperatures ranging from -35°C to +180°C.

• Shielded Signal Transmission: Coaxial cable reduces interference and ensures accurate signal delivery.

• Proven Reliability: Suitable for turbine protection and other critical industrial applications.

Frequently Asked Questions (FAQ)

1. What principle does the PR6424/119-121 use for measurement?

   It operates on the eddy current principle, detecting changes in the electromagnetic field caused by movement of a conductive target. This allows precise non-contact measurement of both shaft displacement and vibration.

2. Which converters are compatible with this sensor?

   It is designed for use with Epro CON021 and CON041 converters, which provide power, signal conditioning, and standardized output for integration into monitoring systems.

3. What is the sensitivity of this sensor?

   The standard sensitivity is 4 mV/µm, which allows detection of fine displacement changes and small vibration amplitudes in rotating machinery.

4. What frequency range does it support?

   The sensor operates from DC to 10 kHz, suitable for static displacement measurement as well as dynamic vibration monitoring.

5. How is the sensor powered?

   It is powered through the connected converter (CON021 or CON041), which supplies excitation voltage and conditions the sensor signal for accurate output.

6. Can it measure both vibration and static displacement?

   Yes, the PR6424/119-121 is capable of capturing static shaft displacement as well as dynamic vibration signals due to imbalance, misalignment, or bearing defects.

7. Which materials can it measure?

   It measures conductive materials such as steel or metal shafts, as the eddy current principle requires a conductive target.

8. How does it maintain measurement accuracy in harsh environments?

   Its stainless steel housing, IP65-rated sensor head, and shielded coaxial cable protect against dust, moisture, and electromagnetic interference, ensuring reliable readings.

9. Is it suitable for turbine protection systems?

   Yes, it is widely used in turbine vibration and shaft monitoring applications, providing critical real-time data for protection and condition monitoring.

10. Does it support diagnostic features?

    When used with compatible converters, it enables monitoring of cable integrity and sensor signal validation, helping maintain continuous reliable operation.