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- PR6423/011-000+CON011
- 8mm Eddy Current Sensor + Eddy Current Signal Converter
- Germany
- 8 mm
- 0.7 kg
- Xiamen, China
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Product Overview
The Epro PR6423/011-000+CON011 8mm Eddy Current Sensor+Eddy Current Signal Converter is a complete eddy-current measurement chain for monitoring mechanical movement in rotating machinery. The PR6423/011-000 acts as the non-contact sensing element, while the CON011 converts the probe signal into a conditioned electrical output for machinery monitoring and protection equipment.
The 8 mm sensor is positioned toward a conductive shaft, thrust collar, or other suitable metallic target. Instead of contacting the moving component, the probe detects changes in the electromagnetic field caused by variations in the distance between the sensor head and the target.
The CON011 contains the associated excitation and signal-conditioning electronics. It receives the probe signal, processes the eddy-current response, and produces an output proportional to the measured distance. This allows the complete sensor chain to be connected to a monitoring amplifier, machinery protection system, or other compatible instrumentation.
The combination is suited to applications involving shaft vibration, axial or radial displacement, eccentricity, and other rotating-machine measurements where continuous non-contact monitoring is required.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Eddy Current Sensor + Eddy Current Signal Converter |
| Product Series | PR6423 Series |
| Sensor Model | PR6423/011-000 |
| Signal Converter | CON011 |
| Sensor Type | 8 mm Eddy Current Sensor |
| Measurement Method | Non-Contacting Eddy Current Measurement |
| Sensor Head Diameter | 8 mm |
| Converter Application | Machinery Displacement and Vibration Monitoring |
| Typical Measurement | Shaft Displacement, Position, Eccentricity, Speed/Key |
| Application | Rotating Machinery Monitoring |
| Weight | 0.7 kg |
Product Features
- Combines the PR6423/011-000 8 mm sensor with the CON011 signal converter.
- Uses non-contact eddy-current measurement for conductive machine targets.
- Suitable for static and dynamic distance measurement.
- Supports shaft displacement and vibration monitoring.
- Can be used for radial and axial machine movement depending on installation.
- CON011 provides sensor excitation and signal conditioning.
- Provides a conditioned voltage output for downstream monitoring equipment.
- Suitable for turbines, compressors, pumps, fans, and other rotating machinery.
- Designed for continuous machinery monitoring and protection applications.
- Sensor and converter can be treated as a matched measurement chain during installation and maintenance.
Working Principle
The PR6423/011-000 and CON011 operate together as an eddy-current measuring chain. The converter supplies the excitation for the probe, causing a high-frequency signal to be generated at the sensor tip. When the electromagnetic field interacts with a conductive machine target, eddy currents are induced in the target.
The strength of this interaction changes with the distance between the sensor head and the target. The CON011 detects the resulting change, demodulates and conditions the signal, and produces an output proportional to the measured distance.
Conductive Machine Target → PR6423/011-000 → CON011 → Monitoring / Protection System
The resulting signal can contain both static displacement information and dynamic components associated with shaft vibration. The monitoring system can then evaluate the measurement for machine condition, alarm, or protection functions.
Role in a Machinery Monitoring Architecture
The combination forms the measurement front end between the rotating machine and the machinery monitoring electronics.
Rotating Shaft → PR6423/011-000 → CON011 → Machinery Monitor → Alarm / Protection Logic
| System Element | Function |
|---|---|
| Rotating Shaft / Target | Provides the conductive measurement target |
| PR6423/011-000 | Detects changes in target-to-probe distance |
| CON011 | Excites the sensor and conditions the measurement signal |
| Machinery Monitor | Processes the conditioned displacement signal |
| Protection System | Evaluates alarm and trip conditions |
| Control System | Uses machinery-status information for operating decisions |
| Operator Interface | Displays displacement, vibration, and machine condition |
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Monitors shaft displacement and dynamic rotor movement |
| Gas Turbines | Provides non-contact shaft condition measurements |
| Hydro Turbines | Monitors axial and radial movement of rotating components |
| Turbo Compressors | Measures shaft displacement and vibration-related movement |
| Centrifugal Compressors | Supports continuous rotor condition monitoring |
| Pumps | Detects abnormal shaft movement and mechanical conditions |
| Industrial Fans | Provides non-contact rotating-shaft monitoring |
| Generators | Monitors rotor position and dynamic movement |
| Process Machinery | Interfaces rotating-equipment measurements with protection systems |
Installation and Maintenance
- Confirm that the PR6423/011-000 and CON011 are the intended combination for the monitoring application.
- Verify the conductive material and geometry of the machine target before installing the probe.
- Position the sensor perpendicular to the target surface where the application requires radial measurement.
- For axial displacement applications, align the sensor with the appropriate axial target surface.
- Establish the specified operating gap between the sensor head and the machine target.
- Secure the sensor mounting arrangement so that vibration cannot change the probe position.
- Connect the probe to the CON011 using the appropriate sensor connection.
- Verify the converter supply voltage and output wiring before energizing the system.
- Keep signal wiring away from high-current conductors and other significant electromagnetic interference sources.
- Check the converter housing and electrical connections for proper grounding and mechanical security.
- During commissioning, compare the converter output with the known probe-to-target position.
- If the output is unstable, inspect the probe gap, target surface, cable connection, and converter before replacing components.
- If the output is completely absent, check converter power, sensor connection, and the complete measurement path.
- Inspect the probe tip and mounting hardware during scheduled machinery maintenance.
- After sensor or converter replacement, verify the complete measurement chain and configured alarm limits before returning the protection function to service.
The sensor and converter should be treated as a complete measurement chain during troubleshooting. Replacing only one component without checking the associated calibration and target conditions can introduce measurement errors.
Related Components
| Component | Function |
|---|---|
| PR6423/011-000 | Provides 8 mm non-contact eddy-current measurement |
| CON011 | Provides sensor excitation and signal conditioning |
| Machinery Monitoring System | Processes the converter output |
| Machinery Protection System | Provides alarm and trip functions |
| Monitoring Amplifier | Receives and evaluates the conditioned sensor signal |
| Probe Mounting Hardware | Maintains the sensor position |
| Sensor Cable | Connects the probe with the converter |
| Rotating Shaft | Provides the conductive measurement target |
| Monitoring Cabinet | Houses associated monitoring electronics |
| Grounding System | Supports proper electrical signal conditions |
Recommended Related Models
| Model | Product Family / Type | Typical Application |
|---|---|---|
| PR6423/011-000+CON011 | Epro PR6423 / CON011 Measurement Chain | 8 mm shaft displacement monitoring |
| PR6423 Series | Epro Eddy Current Sensor | Rotating machinery measurement |
| PR6423/010 Series | Epro 8 mm Eddy Current Sensor | Shaft displacement and vibration monitoring |
| CON011 | Epro Eddy Current Signal Converter | PR642x sensor signal conditioning |
| PR6422 Series | Epro Eddy Current Sensor | 5 mm non-contact measurement |
| PR6424 Series | Epro Eddy Current Sensor | 11 mm non-contact measurement |
| PR6425 Series | Epro Eddy Current Sensor | Extended-range machinery measurement |
| PR6426 Series | Epro Eddy Current Sensor | Large-target displacement measurement |
| MMS 6000 | Epro Machinery Monitoring System | Machinery protection and condition monitoring |
Key Advantages
- Complete measurement chain: Combines the PR6423 sensor and CON011 converter into one monitoring arrangement.
- Non-contact operation: Measures conductive machine targets without physical contact.
- Dynamic measurement capability: Suitable for shaft vibration as well as displacement monitoring.
- Multiple measurement applications: Can support radial movement, axial displacement, eccentricity, and speed-related measurements depending on installation.
- Dedicated signal conditioning: CON011 converts the sensor response into a usable monitoring signal.
- Rotating machinery compatibility: Suitable for turbines, compressors, pumps, fans, and generators.
- Maintenance-oriented architecture: The probe, converter, cabling, and monitoring equipment can be checked as separate stages of the measurement chain.
Technical FAQs
What is the difference between the PR6423/011-000 and the CON011 in this combination?
The PR6423/011-000 is the physical eddy-current sensor that detects the conductive target. The CON011 supplies the sensor excitation and performs the signal-conditioning function, producing the measurement output used by downstream monitoring electronics.
Can this measurement chain detect both shaft vibration and shaft displacement?
Yes. The eddy-current principle responds to changes in the probe-to-target distance. Depending on probe orientation and system configuration, the resulting signal can be used to monitor static position, slow displacement, and dynamic shaft movement such as vibration.
Why should the sensor and converter be treated as a matched system?
The measurement characteristics depend on the sensor, converter, target material, and operating gap. The PR6423 probe and CON011 are intended to operate together as an eddy-current measurement chain, so replacing one part requires checking the resulting measurement characteristics rather than treating the components as unrelated devices.
What should be checked if the CON011 output does not correspond to the actual shaft position?
Check the converter supply first, then verify the sensor connection, probe mounting, target material, and probe-to-target gap. Cable routing and electrical interference should also be inspected. If the mechanical installation is correct, the sensor and converter should be evaluated together before changing the monitoring-system configuration.