The Epro PR6424/003-040+CON021 is a high-precision eddy current displacement sensor developed for industrial machinery monitoring, particularly for use in vibration and axial position measurements of rotating equipment. As part of the Epro PR6424 series, it features a 16mm diameter probe and is designed to work with the CON021 converter for optimal signal transmission. This sensor is known for its robust performance in harsh industrial environments, ensuring long-term stability and accurate measurements.

With non-contact sensing technology, this model is especially useful for measuring shaft displacements, thermal growth, and dynamic vibrations in turbines, compressors, motors, and pumps. Its integration into condition monitoring and protection systems makes it an essential component in predictive maintenance strategies.

Technical Specifications

Product Applications

The PR6424/003-040+CON021 sensor is widely applied in numerous industrial rotating machinery environments, such as:

• Steam and gas turbines – for shaft vibration and axial thrust monitoring

• Compressors – to measure radial and axial rotor movement

• Pumps – for condition-based maintenance and early fault detection

• Electric motors and generators – to ensure proper alignment and minimal vibration

• Gearboxes – for shaft displacement and casing vibration monitoring

• Refineries and chemical plants – where ATEX-certified sensors are required in hazardous areas

Its application ensures real-time protection, condition monitoring, and extended machinery life through early detection of anomalies.

Product Advantages

• Non-contact Measurement: Eliminates mechanical wear and enables high-speed operation monitoring.

• High Accuracy and Stability: Excellent linearity and long-term repeatability for precise diagnostics.

• Wide Temperature and Vibration Range: Designed for challenging environments with robust physical resistance.

• Integrated with CON021: Ensures signal integrity and conditioning for control system compatibility.

• Maintenance-Free Design: With no moving parts, reduces maintenance cost and frequency.

• Flexible Configuration: Customizable cable lengths and thread types to suit various installation setups.

• Certified for Hazardous Areas: Compatible with EX-rated environments with proper system configuration.

Frequently Asked Questions (FAQ)

1. Q: What is the measurement range of PR6424/003-040?

   A: It provides a standard measuring range of 4 mm, optimized for medium-to-large shaft displacements.

2. Q: What converter is compatible with this sensor?

   A: The sensor is designed to work with the CON021 converter, ensuring accurate signal conditioning.

3. Q: Can I use this sensor in high-temperature environments?

   A: Yes, the sensor can operate up to +180°C, making it suitable for turbine and compressor applications.

4. Q: What is the size of the probe?

   A: The probe has a 16 mm diameter and a length of approximately 75 mm depending on thread type.

5. Q: Is the sensor suitable for ATEX zones?

   A: Yes, when properly installed with certified components, it can be used in hazardous environments.

6. Q: How is the sensor mounted?

   A: It uses an M14 x 1.5 thread for secure mounting in proximity to the rotating shaft.

7. Q: What kind of cable is used?

   A: A Teflon-insulated coaxial cable is used, available in standard lengths of 5 meters and customizable.

8. Q: How durable is the sensor in high-vibration environments?

   A: It handles up to 20 g vibration and 100 g shock, ideal for heavy-duty machinery.

9. Q: Can this sensor be used underwater or in submerged locations?

   A: Yes, with its IP68 rating, it is fully protected against water ingress.

10. Q: What makes this sensor better than general displacement sensors?

    A: Its combination of robust mechanical design, high-frequency response, and long operational life in harsh conditions sets it apart from generic models.