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- PR6423/004-030+CON021
- 8mm Eddy Current Sensor + Eddy Current Signal Converter
- Germany
- 8 mm
- 0.22 kg
- Xiamen, China
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Product Overview
The Epro PR6423/004-030+CON021 Eddy Current Sensor System combines an 8mm PR6423 Eddy Current Sensor with a CON021 Eddy Current Signal Converter to provide a complete non-contact displacement monitoring solution for rotating machinery.
This sensor system is mainly used for measuring shaft displacement, radial vibration, and relative movement between the probe and rotating components. It is commonly applied in critical equipment where continuous mechanical condition monitoring is required to maintain operational safety and reduce unexpected downtime.
The PR6423/004-030 sensor detects changes in the distance between the probe tip and the conductive target through eddy current technology. The CON021 signal converter processes the sensor output and converts the measurement signal into a format suitable for connection with machinery monitoring and protection systems.
Compared with contact measurement methods, the eddy current principle allows the sensor to operate without mechanical contact with the rotating shaft, making it suitable for high-speed equipment such as turbines, compressors, and generators.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Epro |
| Model | PR6423/004-030+CON021 |
| Product Family | PR6423 Series |
| Product Type | Eddy Current Sensor + Signal Converter |
| Sensor Type | Non-contact Eddy Current Sensor |
| Sensor Diameter | 8 mm |
| Signal Converter | CON021 |
| Measurement Principle | Eddy Current Displacement Measurement |
| Application | Rotating Machinery Monitoring |
| System Role | Shaft Displacement / Vibration Measurement |
| Dimensions | Sensor Head Diameter: 8 mm |
| Weight | 0.22 kg |
Product Features
The Epro PR6423/004-030+CON021 provides integrated sensing and signal conversion for industrial machinery monitoring applications.
Key characteristics include:
- Epro PR6423 series 8mm eddy current sensor system
- Includes PR6423/004-030 sensor and CON021 signal converter
- Provides non-contact shaft displacement measurement
- Suitable for vibration and position monitoring
- Supports continuous rotating machinery condition monitoring
- Detects relative shaft movement with high sensitivity
- Suitable for high-speed rotating equipment
- Compatible with Epro monitoring architectures
- Supports machinery protection and predictive maintenance systems
- Designed for industrial environments requiring stable measurement signals
The sensor and converter should be installed as a matched pair to maintain correct measurement characteristics and signal performance.
Working Principle
The PR6423/004-030+CON021 operates by measuring changes in the electromagnetic field between the sensor probe and a conductive rotating target.
A simplified signal path is:
Rotating Shaft → PR6423 Eddy Current Sensor → CON021 Signal Converter → Monitoring System → Protection / Analysis Function
The PR6423 sensor generates an electromagnetic field around the probe tip. When the shaft moves closer or farther away from the sensor, the eddy current response changes.
These changes are converted into an electrical measurement signal representing the relative displacement of the shaft. The CON021 converter processes the sensor output and provides a standardized signal for use by monitoring and protection equipment.
The processed signal can be used for vibration analysis, shaft position monitoring, alarm generation, and machinery protection decisions.
Role in Machinery Condition Monitoring Architecture
The PR6423/004-030+CON021 functions as a complete displacement measurement section within a rotating equipment monitoring system.
A typical architecture is:
Rotating Equipment → Eddy Current Sensor → Signal Converter → Monitoring Module → Alarm / Shutdown System
| System Layer | Typical Function |
|---|---|
| Rotating Equipment | Produces mechanical movement |
| Sensor Layer | Detects shaft displacement changes |
| Signal Conversion Layer | Processes sensor measurement signals |
| Monitoring Layer | Evaluates vibration and position data |
| Protection Layer | Generates alarms or shutdown actions |
| Control System | Coordinates equipment operation |
The combination of sensor and converter allows monitoring systems to obtain stable mechanical condition data directly from rotating components.
Industrial Applications
The Epro PR6423/004-030+CON021 is suitable for applications requiring accurate non-contact shaft displacement measurement.
| Application | Typical Use |
|---|---|
| Steam Turbines | Rotor vibration and displacement monitoring |
| Gas Turbines | Shaft movement detection |
| Compressors | Mechanical condition monitoring |
| Generators | Shaft position analysis |
| Pumps | Rotating component monitoring |
| Power Plant Equipment | Machinery protection systems |
| Process Machinery | Predictive maintenance |
| Industrial Rotating Equipment | Continuous vibration monitoring |
The actual application depends on the machinery type, monitoring platform, and required protection strategy.
Installation and Maintenance
Correct installation of the sensor and signal converter is essential for maintaining measurement accuracy.
Recommended maintenance checks include:
- Confirm the complete PR6423/004-030+CON021 model.
- Verify sensor and converter compatibility.
- Check probe mounting location.
- Confirm correct sensor gap adjustment.
- Inspect sensor cable condition.
- Check converter wiring connections.
- Verify power supply conditions.
- Inspect connectors and terminals.
- Confirm monitoring system input configuration.
- Review vibration and displacement trends.
- Check alarm and protection parameters.
- Verify stable operation during equipment running conditions.
- Inspect the target surface condition.
- Confirm measurement signals remain within expected ranges.
If the displacement signal becomes unstable, the complete measurement path should be checked, including sensor installation, cable connections, converter operation, and monitoring system settings.
Related Components
The PR6423/004-030+CON021 is typically integrated with other machinery monitoring components.
| Component | Function |
|---|---|
| Epro PR6423/004-030 Sensor | Detects shaft displacement |
| CON021 Signal Converter | Converts sensor signals |
| Epro MMS Monitoring System | Provides vibration monitoring |
| Sensor Extension Cable | Connects sensor and converter |
| Protection Module | Handles alarm and shutdown logic |
| Rotating Machinery | Provides monitored target surface |
| Diagnostic Software | Supports condition analysis |
A complete monitoring solution requires correct matching between the sensor, converter, cable, and monitoring system.
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Epro PR6423/004-030+CON021 | Eddy Current Sensor System | Shaft displacement monitoring |
| Epro PR6423/004-010-CN+CON021 | Eddy Current Sensor System | Rotating machinery monitoring |
| Epro PR6423/003-131+CON041 | Sensor + Signal Converter | Complete displacement measurement |
| Epro PR6423 Series | Eddy Current Sensor | Non-contact vibration measurement |
| Epro CON021 | Eddy Current Signal Converter | Sensor signal processing |
| Epro MMS 6000 Series | Machinery Monitoring System | Equipment protection |
Selection should consider sensor type, converter compatibility, installation requirements, and the connected monitoring system.
Key Advantages
- Complete Epro PR6423 sensor measurement solution
- Combines 8mm eddy current sensor with CON021 converter
- Provides non-contact shaft displacement monitoring
- Suitable for rotating machinery protection
- Supports continuous vibration measurement
- Enables mechanical condition analysis
- Suitable for turbines, compressors, and generators
- Integrates with industrial monitoring systems
- Supports predictive maintenance applications
- Provides stable measurement performance
Technical FAQs
What makes the PR6423/004-030+CON021 different from a standalone eddy current sensor?
The system includes both the PR6423/004-030 sensor and CON021 signal converter, allowing the detected displacement signal to be processed before connection to a monitoring or protection system.
What type of machinery conditions can this sensor system help monitor?
It can be used to monitor shaft displacement, vibration trends, and relative mechanical movement in rotating equipment such as turbines, compressors, and generators.
Why is non-contact measurement important for rotating machinery?
Non-contact measurement avoids physical wear between the sensor and rotating shaft, allowing long-term monitoring of high-speed equipment while maintaining measurement stability.
What should be checked when replacing a PR6423 sensor system?
The sensor model, converter type, mounting position, probe gap, cable connections, and monitoring system configuration should be verified to ensure correct operation after replacement.