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Overview
The Epro PR6426/000-010 is a 32 mm Eddy Current Sensor designed for non-contact measurement of shaft displacement, vibration, position, and eccentricity in large rotating machinery.
This sensor is developed for heavy-duty rotating equipment where accurate shaft monitoring and reliable condition measurement are required. With its larger sensing head design, the PR6426 series is suitable for applications involving large shaft systems and critical turbomachinery.
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | Epro |
| Model | PR6426/000-010 |
| Product Type | 32 mm Eddy Current Sensor |
| Sensor Type | Non-contact Eddy Current Displacement Sensor |
| Sensor Head Diameter | 32 mm |
| Weight | 0.8 kg |
| Measurement Principle | Eddy Current Technology |
| Main Function | Shaft Displacement, Vibration, Position and Eccentricity Measurement |
| Measurement Range | Large Shaft Position Measurement |
| Application | Heavy-duty Rotating Machinery Monitoring |
| Typical Equipment | Turbines, Compressors, Pumps, Fans and Generators |
Applications
Turbine Shaft Monitoring
The Epro PR6426/000-010 is widely used for monitoring shaft displacement and vibration in steam turbines, gas turbines, and hydro turbines to maintain stable operation.
Compressor Protection
The sensor provides accurate shaft movement measurement for large compressors, helping detect mechanical changes and prevent unexpected failures.
Generator Condition Monitoring
It supports generator protection systems by continuously monitoring shaft position and vibration behavior.
Large Pump Monitoring
The sensor is suitable for industrial pumps with large rotating shafts where reliable displacement measurement is required.
Fan and Rotating Equipment Monitoring
It helps monitor large fans and other rotating machines by providing accurate shaft condition data for maintenance decisions.
How It Works
The Epro PR6426/000-010 operates based on eddy current measurement technology.
The sensor generates a high-frequency electromagnetic field near the rotating shaft surface. When the distance between the sensor tip and the conductive shaft changes, the electromagnetic characteristics change accordingly.
The sensor converts these changes into electrical signals representing shaft displacement or vibration movement. The measurement signal can then be processed by a compatible converter or machinery monitoring system.
The typical working process is:
Rotating Shaft → PR6426 Eddy Current Sensor → Signal Converter → Machinery Monitoring System
Because the sensor performs measurement without physical contact, it avoids mechanical wear and provides stable operation in demanding industrial environments.
Key Advantages
| Feature | Benefit |
|---|---|
| Large 32 mm Sensor Design | Suitable for large shaft and heavy-duty machinery applications. |
| Non-contact Measurement | Eliminates mechanical wear between sensor and rotating components. |
| Accurate Shaft Detection | Provides reliable displacement and vibration monitoring. |
| Stable Long-Term Performance | Supports continuous machinery protection systems. |
| High Environmental Resistance | Suitable for demanding industrial operating conditions. |
| Predictive Maintenance Support | Helps detect equipment problems before serious damage occurs. |
Related Components
| Component | Function |
|---|---|
| PR6426/000-010 Sensor Probe | Measures shaft displacement and vibration changes. |
| Eddy Current Converter | Processes sensor signals and provides output data. |
| CON021 Converter | Provides signal conditioning for sensor applications. |
| Extension Cable | Connects the sensor to the converter system. |
| Machinery Protection System | Analyzes measurement data and provides alarms. |
| Monitoring Module | Supports equipment condition monitoring. |
Installation
The Epro PR6426/000-010 should be installed according to the requirements of the machinery monitoring system.
Before installation, verify:
- Correct sensor model
- Proper mounting position
- Shaft surface condition
- Sensor alignment
- Cable connection
- Converter compatibility
The sensor must be positioned correctly relative to the rotating shaft to achieve accurate measurement performance. Incorrect installation distance or alignment may result in unstable signals or inaccurate monitoring data.
After installation, calibration and system testing should be completed to confirm reliable operation.
Troubleshooting
| Problem | Possible Cause | Recommended Check |
|---|---|---|
| No Measurement Signal | Sensor connection problem or converter fault | Check wiring, connections, and converter operation. |
| Incorrect Displacement Reading | Incorrect sensor installation position | Verify sensor alignment and mounting condition. |
| Signal Instability | Cable interference or connection issue | Inspect cable routing and connection points. |
| False Machinery Alarm | Equipment vibration change or sensor problem | Check machine condition and sensor output. |
| Measurement Error | Calibration or configuration issue | Verify system settings and sensor parameters. |
Recommended Models
| Model | Product Type | Application |
|---|---|---|
| PR6426/000-010 | 32 mm Eddy Current Sensor | Large shaft displacement monitoring |
| PR6426/010-000 | 32 mm Eddy Current Sensor | Turbomachinery condition monitoring |
| PR6426/010-110+CON021 | 32 mm Eddy Current Sensor System | Complete vibration monitoring solution |
| PR6424/000-000+CON021 | 16 mm Eddy Current Sensor System | Medium shaft monitoring applications |
| PR6423 Series + CON021 | 8 mm Eddy Current Sensor System | Standard rotating machinery monitoring |
| CON021 | Signal Converter | Eddy current sensor signal processing |
Related Products
| Product / Series | Product Type | Main Use |
|---|---|---|
| Epro PR6426 Series | Eddy Current Sensor | Large shaft displacement measurement |
| Epro PR6424 Series | Eddy Current Sensor | Medium rotating equipment monitoring |
| Epro PR6423 Series | Eddy Current Sensor | General vibration monitoring |
| Epro CON021 Series | Signal Converter | Sensor signal conversion |
| Machinery Monitoring Modules | Protection Equipment | Equipment condition analysis |
| Turbomachinery Protection Systems | Monitoring Platform | Critical machine protection |
Technical FAQs
1. What is the main function of the Epro PR6426/000-010?
It is used for non-contact measurement of shaft displacement, vibration, position, and eccentricity in large rotating machinery.
2. Why does the PR6426 use a 32 mm sensor head?
The larger sensor head is designed for large shaft applications that require stable and accurate displacement measurement.
3. What equipment is suitable for this sensor?
It is commonly used in turbines, compressors, generators, pumps, fans, and other heavy-duty rotating equipment.
4. What is the role of a signal converter in this sensor system?
The converter processes the eddy current signal and provides a suitable output for machinery monitoring and protection systems.
5. What should be checked if the sensor signal is unstable?
Check the sensor installation position, cable connection, converter condition, system configuration, and surrounding operating environment.