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- PR6423/10R-141+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 PR6423/10R-141+CON031 8mm Eddy Current Sensor+Eddy Current Signal Converter is a non-contact displacement measurement combination used for monitoring rotating machinery. The PR6423/10R-141 eddy current sensor detects changes in the distance between the probe tip and a conductive machine target, while the CON031 signal converter conditions the probe signal for use by a machinery monitoring or protection system.
The combination is suitable for applications where shaft movement, axial position, radial vibration, or other mechanical displacement needs to be monitored without physical contact. It can be used around turbine shafts, compressors, pumps, gearboxes, and other rotating equipment where direct mechanical contact with the monitored surface would be undesirable.
During operation, the probe is installed facing a suitable conductive target on the rotating machine. Changes in the probe-to-target distance alter the electrical characteristics of the eddy-current field. The signal converter processes this change and produces a usable measurement signal for the connected monitoring system.
For machinery protection applications, correct probe installation and signal-chain matching are important. The sensor, converter, extension cable arrangement, and monitoring input should be treated as one measurement chain during commissioning and troubleshooting.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Epro |
| Model | PR6423/10R-141+CON031 |
| Product Type | Eddy Current Sensor + Eddy Current Signal Converter |
| Sensor Model | PR6423/10R-141 |
| Signal Converter Model | CON031 |
| Measurement Principle | Eddy Current |
| Measurement Type | Non-contact displacement measurement |
| Typical Application | Rotating machinery monitoring |
| Sensor Head Diameter | 8 mm |
| Weight | 0.22 kg |
Product Features
- PR6423/10R-141 eddy current sensor for non-contact measurement
- CON031 signal converter for conditioning the probe measurement signal
- Suitable for monitoring relative shaft displacement and mechanical movement
- Non-contact measurement avoids mechanical wear at the sensing point
- Applicable to rotating machinery condition-monitoring systems
- Can be used in turbine, compressor, pump, gearbox, and other rotating-equipment applications
- Supports continuous measurement when integrated with an appropriate monitoring system
- Sensor and converter combination simplifies the signal path from the machine target to the monitoring input
- Suitable for machinery protection and predictive-maintenance applications
Working Principle
The PR6423/10R-141 operates by generating an electromagnetic field at the probe tip. When the probe faces a conductive shaft or other suitable metallic target, eddy currents are induced in the target.
The distance between the probe and target affects the probe’s electrical response. As the shaft moves relative to the stationary probe, the resulting change is detected and converted into a displacement-related signal.
The measurement path can be represented as:
Rotating Shaft → PR6423/10R-141 Probe → CON031 Signal Converter → Monitoring System → Machinery Protection / Control
The CON031 processes the raw probe response so that the connected monitoring equipment can interpret the measured mechanical movement. In a vibration-monitoring application, for example, repeated shaft movement produces a changing signal that can be evaluated for vibration amplitude, shaft position, or abnormal mechanical behavior.
Because the measurement is non-contact, the sensing point does not rely on a mechanical linkage between the probe and the rotating shaft. Probe gap, target material, mounting stability, and cable connections therefore have a direct effect on measurement quality.
Role in a Rotating Machinery Condition Monitoring Architecture
The PR6423/10R-141+CON031 combination forms the front-end measurement chain between the rotating machine and the machinery monitoring system.
Rotating Equipment → Eddy Current Probe → Signal Converter → Monitoring / Protection System → Alarm or Shutdown Logic
| System Element | Function |
|---|---|
| Rotating Shaft | Provides the conductive target for displacement measurement |
| PR6423/10R-141 | Detects changes in probe-to-target distance |
| CON031 | Conditions and converts the eddy-current measurement signal |
| Extension Cable | Connects the probe with the associated signal-conditioning circuit where applicable |
| Machinery Monitoring System | Processes and evaluates the measurement |
| Protection System | Generates alarms or protective actions when configured limits are exceeded |
| DCS / PLC | Receives relevant machinery data for process supervision or control |
| Operator Interface | Displays vibration, position, alarm, and equipment-status information |
| Maintenance System | Uses machinery-condition information for troubleshooting and maintenance planning |
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Shaft position and rotating-shaft condition monitoring |
| Gas Turbines | Non-contact measurement of shaft movement and machinery condition |
| Compressors | Monitoring shaft displacement and mechanical behavior |
| Centrifugal Pumps | Detection of abnormal shaft movement and vibration-related conditions |
| Gearboxes | Monitoring rotating components and mechanical displacement |
| Turboexpanders | Shaft movement and machinery protection applications |
| Generators | Monitoring rotating-shaft behavior in critical equipment |
| Industrial Fans | Condition monitoring of high-speed rotating assemblies |
| Process Machinery | Continuous mechanical-condition monitoring |
| Machinery Test Systems | Measurement of dynamic displacement during equipment testing |
Installation and Maintenance
- Verify the complete measurement chain before installation, including the PR6423/10R-141 probe and CON031 signal converter.
- Confirm the sensor mounting position and ensure that the probe is correctly aligned with the intended conductive target.
- Set the probe gap correctly according to the applicable system installation requirements before applying the measurement signal to the monitoring system.
- Inspect the target surface for excessive damage, contamination, deposits, or mechanical conditions that could affect measurement quality.
- Check probe mounting stability because vibration or movement of the stationary probe itself can introduce errors into displacement measurements.
- Inspect cables and connections for loose terminals, damaged insulation, excessive bending, or other conditions that may interrupt the measurement chain.
- Verify converter compatibility and confirm that the CON031 is correctly matched with the associated probe and monitoring input.
- Check signal polarity and wiring before connecting the converter output to the machinery monitoring or protection system.
- Compare the measured signal with the expected machine condition during commissioning rather than relying only on a single static reading.
- Monitor signal stability during normal machine operation and investigate sudden changes, intermittent readings, or unexplained signal fluctuations.
- Inspect the probe after machinery maintenance to ensure that its position and mounting have not changed during work on the shaft, bearing, or surrounding equipment.
- Maintain calibration and installation records so that future troubleshooting can distinguish sensor problems from mechanical changes in the monitored machine.
Related Components
| Component | Function |
|---|---|
| PR6423 Series Eddy Current Probe | Detects non-contact shaft displacement |
| CON031 Signal Converter | Conditions the eddy-current probe signal |
| Probe Extension Cable | Provides the connection between probe and signal-conditioning equipment |
| Machinery Monitoring System | Processes and displays machinery measurements |
| Vibration Monitoring Module | Evaluates shaft vibration and related dynamic signals |
| Shaft Position Monitoring Channel | Monitors relative axial or radial shaft movement |
| Proximity Probe Mount | Maintains the required probe position relative to the machine target |
| Machinery Protection System | Generates alarms and shutdown actions |
| DCS / PLC Interface | Transfers selected machinery information to the control system |
| Turbine / Compressor Monitoring System | Provides dedicated supervision of critical rotating equipment |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Epro PR6423 Series | Eddy Current Sensors | Non-contact shaft displacement and vibration measurement |
| Epro PR6423/10R | Eddy Current Sensor | Rotating machinery measurement |
| Epro CON031 | Eddy Current Signal Converter | Probe signal conditioning |
| Epro PR6424 Series | Eddy Current Sensors | Machinery displacement and condition monitoring |
| Epro PR6422 Series | Eddy Current Sensors | Non-contact proximity measurement |
| Epro Machinery Protection Systems | Monitoring System | Turbine and rotating-equipment protection |
| Epro Machinery Monitoring Components | Monitoring Hardware | Vibration, position, and machine-condition monitoring |
Key Advantages
- Combines eddy current sensing and signal conditioning in one measurement chain
- Non-contact measurement minimizes mechanical wear at the sensing point
- Suitable for critical rotating machinery
- Supports shaft displacement and condition-monitoring applications
- Useful for turbine, compressor, pump, and gearbox monitoring
- Can interface with machinery monitoring and protection systems
- Suitable for continuous machine-condition supervision
Technical FAQs
What does the PR6423/10R-141 measure?
The PR6423/10R-141 is an eddy current probe used for non-contact measurement of the relative movement between the probe and a conductive machine target. Depending on the installation, this can be used for shaft displacement, position, or vibration-related measurements.
What is the function of the CON031 in this combination?
The CON031 acts as the signal-conditioning component for the eddy current probe. It processes the probe’s electrical response into a measurement signal suitable for the connected machinery monitoring or protection equipment.
Why is probe gap important for the PR6423/10R-141?
The probe-to-target gap directly affects the eddy-current response. An incorrect gap can result in an inaccurate output, reduced measurement range, or abnormal signal behavior, so the probe should be positioned according to the applicable installation requirements.
How can an unstable eddy current measurement be diagnosed?
Start with the complete signal chain rather than replacing the probe immediately. Check probe mounting, target condition, probe gap, cable connections, converter operation, and the monitoring-system input. If the electrical signal remains unstable after these checks, the probe or converter can then be evaluated separately.