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- PR6423/012-111+CON031
- 8mm Eddy Current Sensor + Eddy Current Signal Converter
- Germany
- 8 mm
- 0.22 kg
- Xiamen, China
- New & In Stock
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Product Overview
The Epro PR6423/012-111+CON031 8mm Eddy Current Sensor+Eddy Current Signal Converter combines an eddy current sensing probe with the associated signal conversion electronics for non-contact monitoring of conductive machine components. The combination is suited to rotating machinery where shaft movement needs to be measured without physically contacting the rotating surface.
The PR6423 sensor is installed at the machine side, typically facing a conductive shaft or another monitored target. The CON031 signal converter forms the electronic interface between the probe and the machinery monitoring system, handling the sensor signal so that the measured movement can be transferred to downstream monitoring equipment.
This type of arrangement is useful for machinery condition monitoring because the sensing element remains close to the rotating component while the electronic conversion stage provides the interface required by the monitoring system. Depending on the mechanical installation and system configuration, the measurement channel can be used for shaft vibration, radial displacement, axial movement, or related proximity measurements.
The combined sensor and converter arrangement also simplifies channel-level replacement planning. When troubleshooting, both the mechanical probe installation and the associated converter should be considered, since an abnormal measurement can originate from either side of the sensing chain.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Epro |
| Model | PR6423/012-111+CON031 |
| Product Family | PR6423 Series |
| Product Series | PR6423 |
| Product Type | 8mm Eddy Current Sensor + Eddy Current Signal Converter |
| Primary Function | Non-contact displacement and position measurement |
| System Role | Eddy current sensing and signal conversion |
| Typical Application | Rotating machinery monitoring |
| Sensor Head Diameter | 8 mm |
| Weight | 0.22 kg |
Product Features
- Combines an 8 mm eddy current sensor with a CON031 signal converter
- Non-contact measurement of conductive machine targets
- Suitable for rotating shaft displacement monitoring
- Sensor and signal-conversion stages are included as a matched combination
- Can be integrated into machinery vibration monitoring channels
- Suitable for continuous monitoring of critical rotating equipment
- Supports the interface between machine-side sensing and monitoring electronics
- Applicable to turbine, compressor, pump, generator, and motor monitoring systems
Working Principle
The PR6423 sensor detects changes in the distance between its sensing head and the conductive machine target. When the target moves relative to the probe, the electromagnetic interaction around the sensing element changes.
The CON031 signal converter receives the probe response and converts the sensor information into a form suitable for the downstream machinery monitoring system. This allows the physical movement occurring at the machine to become an electrical measurement that can be evaluated by the monitoring equipment.
Rotating Shaft → PR6423 Sensor → CON031 Signal Converter → Machinery Monitoring System → Alarm / Protection
During operation, shaft movement changes the probe-to-target relationship. The probe detects this change, while the converter handles the corresponding signal interface. The monitoring system can then use the resulting measurement for vibration, displacement, or position supervision according to the installed channel configuration.
This arrangement separates the sensing point from the measurement-processing stage. The probe must therefore be mechanically stable and correctly positioned, while the converter and its connections must remain electrically sound for the complete measurement channel to operate correctly.
Role in a Machinery Monitoring Architecture
The combined PR6423/012-111+CON031 assembly forms a complete sensing and signal-conversion section within a rotating machinery monitoring channel. The sensor performs the proximity measurement at the machine, while the converter provides the electronic interface to the monitoring system.
Rotating Machine → PR6423 Sensor → CON031 → Monitoring / Protection System → Control System
| System Element | Function |
|---|---|
| Rotating Shaft | Provides the conductive target for proximity measurement |
| PR6423 Sensor | Detects changes in the target-to-probe relationship |
| CON031 Signal Converter | Converts and conditions the sensor response for downstream equipment |
| Monitoring System | Processes the measurement and evaluates machine condition |
| Protection System | Uses configured measurements for alarm or protective action |
| Control System | Uses available machinery information for operational supervision |
| Operator Interface | Presents configured vibration or displacement information |
The sensor and converter perform different functions within the same measurement channel. The probe should not be treated as a standalone monitoring system, and the converter does not replace the mechanical sensing function of the probe.
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Shaft vibration and displacement monitoring |
| Gas Turbines | Rotor movement and proximity measurement |
| Centrifugal Compressors | Shaft position and vibration monitoring |
| Large Pumps | Non-contact monitoring of rotating shafts |
| Generators | Rotor movement and condition monitoring |
| Large Motors | Shaft displacement supervision |
| Turboexpanders | High-speed rotating component monitoring |
| Machinery Protection Systems | Proximity measurement for alarm and protection channels |
Installation and Maintenance
- Confirm that the complete PR6423/012-111+CON031 combination is appropriate for the intended monitoring channel.
- Verify the sensor mounting location and the required relationship between the probe and conductive target.
- Check that the monitored shaft or target surface is suitable for eddy current measurement.
- Position the PR6423 sensor with the correct orientation toward the monitored target.
- Establish the required probe-to-target gap according to the applicable installation requirements.
- Secure the sensor so that machine vibration cannot alter its mechanical position.
- Install and connect the CON031 converter according to the applicable system arrangement.
- Inspect sensor and converter connections for loose terminals, damaged wiring, or contamination.
- Verify the measurement channel with the machine stopped before startup.
- Observe the converted signal as the machine reaches operating speed.
- Check the probe mounting, cable condition, and converter connections during scheduled maintenance.
- After replacing either the sensor or converter, verify the complete measurement channel and configured monitoring functions before returning the machine to service.
Compatible System Components
| Component | Function |
|---|---|
| Epro PR6423 Eddy Current Sensor | Detects relative movement of the conductive machine target |
| Epro CON031 Signal Converter | Provides the electronic interface for the eddy current sensor |
| Probe Extension Cable | Connects the probe with associated electronics where required |
| Machinery Monitoring Module | Receives and evaluates the converted measurement |
| Vibration Monitoring System | Processes shaft vibration and displacement information |
| Machine Protection System | Generates configured alarms or protective actions |
| Probe Mounting Hardware | Maintains sensor position and measurement alignment |
| Rotating Shaft | Provides the conductive target being monitored |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Epro PR6423/010 Series | 8mm Eddy Current Sensor | Shaft vibration and displacement monitoring |
| Epro PR6423/011 Series | 8mm Eddy Current Sensor | Non-contact shaft position measurement |
| Epro PR6423/012 Series | 8mm Eddy Current Sensor | Rotating machinery monitoring |
| Epro CON021 | Eddy Current Signal Converter | Sensor signal conversion |
| Epro CON031 | Eddy Current Signal Converter | PR6423 sensor signal interface |
| Epro MMS Series | Machinery Monitoring System | Machinery condition and protection monitoring |
Key Advantages
- Combines the machine-side sensing element and signal-conversion stage in one product combination.
- Enables non-contact monitoring of conductive rotating components.
- Reduces the need to source the probe and associated converter as unrelated components.
- Suitable for vibration, displacement, and position monitoring arrangements.
- Allows the sensing element to remain at the machine while the conversion stage interfaces with monitoring electronics.
- Useful for continuous monitoring channels on critical rotating equipment.
Technical FAQs
What is the relationship between the PR6423 sensor and CON031?
The PR6423 sensor performs the non-contact proximity measurement at the machine, while the CON031 serves as the associated signal-conversion stage. Both parts contribute to the complete measurement channel and should be considered together when checking compatibility.
Why might the converted signal be abnormal even when the probe is correctly installed?
A correct mechanical probe position does not eliminate problems in the sensor cable, converter connections, power or signal interface, or downstream monitoring equipment. Troubleshooting should therefore cover the entire sensor-to-monitoring path.
Can the probe and converter be replaced independently?
Replacement depends on the installed system configuration and compatibility requirements. When replacing either component, the complete channel should be checked to ensure that the sensor, converter, cabling, and monitoring equipment remain correctly matched.
What is the most important mechanical consideration during sensor installation?
The probe-to-target relationship must remain stable during machine operation. Incorrect positioning, excessive gap variation, probe movement, or an unsuitable target surface can affect the measurement before the signal even reaches the CON031 converter.