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- PR6423/010-000+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 PR6423/010-000+CON021 8mm Eddy Current Sensor + Eddy Current Signal Converter combines an eddy-current proximity sensor with its associated signal-conversion component to form a more complete displacement measurement arrangement.
The PR6423/010-000 serves as the sensing element, detecting changes in the distance between the probe tip and a conductive machine target. The CON021 forms the signal-conditioning and conversion portion of the measurement chain, allowing the electrical response generated by the proximity sensor to be converted into a usable output for downstream monitoring equipment.
This combination is particularly relevant to rotating machinery where shaft position, displacement, or vibration-related movement needs to be monitored without mechanical contact. Instead of treating the probe and converter as unrelated components, the combined configuration should be considered as one measurement channel consisting of sensor, signal conversion, and monitoring hardware.
For maintenance engineers, the complete assembly can simplify replacement identification when the existing installation uses the PR6423 probe together with the corresponding CON021 signal converter. During troubleshooting, however, the probe, converter, cabling, mounting, target surface, and monitoring channel should still be evaluated individually.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Epro |
| Model | PR6423/010-000+CON021 |
| Product Family | PR6423 |
| Product Type | 8mm Eddy Current Sensor + Eddy Current Signal Converter |
| Sensor Model | PR6423/010-000 |
| Signal Converter | CON021 |
| Measurement Technology | Eddy Current |
| Sensor Head Diameter | 8 mm |
| Primary Function | Non-Contact Displacement / Position Measurement |
| System Role | Proximity Measurement and Signal Conditioning |
| Application | Rotating Machinery Monitoring |
| Weight | 0.22 kg |
Product Features
The PR6423/010-000+CON021 combination integrates the sensing and signal-conditioning stages required by an eddy-current measurement channel.
Key characteristics include:
- Epro PR6423 eddy-current sensor system
- PR6423/010-000 8 mm proximity sensor
- CON021 Eddy Current Signal Converter
- 8 mm sensor head diameter
- Non-contact measurement principle
- Suitable for conductive rotating-machine targets
- Supports displacement and position monitoring
- Suitable for vibration-related shaft measurements
- Converts the sensor response into a usable measurement signal
- Suitable for rotating machinery condition-monitoring systems
- Useful for turbine and other critical machinery applications
- Practical for sensor-loop replacement and maintenance
The sensor and converter perform different functions, so both components should be checked when investigating an abnormal measurement.
Working Principle
The combined system operates through a sequence of electromagnetic sensing → signal conversion → monitoring.
A simplified measurement chain is:
Rotating Shaft → PR6423/010-000 → CON021 Signal Converter → Monitoring System
1. Eddy-Current Detection
The PR6423/010-000 generates an electromagnetic field at the probe tip. When positioned near a conductive target such as a rotating shaft, eddy currents are induced in the target.
2. Gap-Dependent Signal
As the shaft moves relative to the probe, the distance between the sensor and target changes. This alters the electrical response of the eddy-current sensing circuit.
3. Signal Conversion
The resulting probe signal is supplied to the CON021 Eddy Current Signal Converter, which conditions and converts the sensor response into a signal suitable for the next stage of the monitoring system.
4. Machinery Monitoring
The conditioned signal can then be processed by a machinery monitoring or protection system. Depending on the installation, the measurement may be used to observe shaft displacement, position, or dynamic movement.
The practical relationship is:
Shaft Movement → Probe Gap Variation → Eddy-Current Response → CON021 Conversion → Monitoring Signal
This arrangement allows the machine condition to be observed continuously without requiring the probe to physically contact the rotating shaft.
Role in a Machinery Monitoring System
The PR6423/010-000+CON021 combination forms the front-end measurement section of a proximity monitoring channel.
A typical architecture is:
Machine Shaft → Proximity Sensor → Signal Converter → Monitoring Module → Protection / Control System
| System Element | Function |
|---|---|
| PR6423/010-000 | Detects target-to-probe distance changes |
| CON021 | Conditions and converts the probe signal |
| Extension Cable | Provides connection between sensor and electronics where applicable |
| Monitoring Module | Processes the converted measurement |
| Protection System | Evaluates machine conditions |
| Rotating Shaft | Provides the conductive measurement target |
| Mounting Hardware | Maintains the probe position and gap |
The advantage of the combined configuration is that the sensing element and signal-conversion stage can be identified as part of the same measurement arrangement.
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Shaft displacement monitoring |
| Gas Turbines | Rotor movement monitoring |
| Compressors | Shaft position and vibration measurement |
| Generators | Rotating-shaft condition monitoring |
| Pumps | Shaft movement detection |
| Turboexpanders | Proximity measurement |
| Industrial Rotating Machinery | Continuous condition monitoring |
| Machinery Protection | Displacement measurement input |
The actual measurement parameter depends on the probe installation location and the configuration of the monitoring system.
Installation and Maintenance
The combined sensor and converter should be treated as a complete measurement channel during installation, while each component should remain individually identifiable for troubleshooting.
Recommended practices include:
- Confirm the complete PR6423/010-000+CON021 configuration.
- Verify the PR6423/010-000 probe model.
- Confirm the 8 mm sensor head diameter.
- Identify the corresponding CON021 converter.
- Verify the intended machine measurement point.
- Inspect the probe tip for damage.
- Check the probe mounting condition.
- Set the probe-to-target gap according to the applicable system requirements.
- Inspect the sensor cable and connectors.
- Verify the connection between the probe and CON021.
- Check converter installation and wiring.
- Inspect the rotating target surface.
- Verify the monitoring-channel configuration.
- Confirm the converted output under known machine conditions.
- Compare the measurement with expected shaft behavior.
- Investigate intermittent readings for mechanical and electrical causes.
- Record the installed sensor position and monitoring channel.
If the probe output appears abnormal, avoid replacing both components immediately. Isolating the probe, converter, cable, and monitoring channel can help determine where the measurement chain is actually failing.
Related Components
| Component | Function |
|---|---|
| Epro PR6423/010-000 | 8 mm Eddy Current Sensor |
| Epro CON021 | Eddy Current Signal Converter |
| Extension Cable | Connects sensing and signal-conditioning hardware where applicable |
| Monitoring Module | Processes the converted measurement |
| Machinery Protection System | Evaluates machine condition |
| Rotating Shaft | Conductive measurement target |
| Probe Mounting Hardware | Maintains sensor alignment |
| Control System | Uses monitored machine information |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Epro PR6423/010-000+CON021 | Sensor + Signal Converter | Complete proximity measurement channel |
| Epro PR6423/010-000 | 8mm Eddy Current Sensor | Shaft displacement measurement |
| Epro PR6423 Series | Eddy Current Sensor | Rotating machinery monitoring |
| Epro CON021 | Eddy Current Signal Converter | Probe signal conditioning |
| Epro Machinery Monitoring Systems | Monitoring Hardware | Turbine and rotating-equipment protection |
Key Advantages
- Epro PR6423/010-000+CON021 combination.
- 8 mm eddy-current sensor.
- Includes associated CON021 signal converter.
- Non-contact displacement measurement.
- Suitable for conductive rotating-machine targets.
- Supports shaft position and displacement monitoring.
- Suitable for vibration-related measurements.
- Provides a sensor-to-converter measurement arrangement.
- Useful for turbine and rotating-equipment monitoring.
- Practical for maintenance and replacement of proximity measurement channels.
Technical FAQs
What is the purpose of combining PR6423/010-000 with CON021?
The PR6423/010-000 performs the proximity sensing function, while the CON021 handles the associated signal-conversion stage. Together they form a more complete measurement channel between the rotating target and downstream monitoring equipment.
If the measurement fluctuates, how can the sensor and converter be distinguished as possible fault sources?
Start with the physical probe installation and target gap, then inspect the sensor cable and connections. If the probe-side conditions are normal, the CON021 and its output should be checked against the expected measurement behavior before replacing the entire assembly.
Why does the 8 mm sensor head matter when replacing this combination?
The sensor head is part of the physical measurement arrangement. Its dimensions affect installation space, mounting hardware, and the relationship between the probe and monitored target. Replacement should therefore match the specified sensor configuration rather than relying only on the electrical connection.
What should be checked after installing a PR6423/010-000+CON021 replacement?
Verify probe positioning and gap first, then confirm the connection to the CON021 and the converter’s output to the monitoring system. Representative machine operating conditions should be used to confirm that the resulting measurement follows expected shaft movement.