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- PR6423/13R-010+CON021
- 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 PR6423/13R-010+CON021 8mm Eddy Current Sensor+Eddy Current Signal Converter is a non-contact measurement combination for rotating machinery monitoring. The PR6423/13R-010 sensor detects changes in the distance between the probe and a conductive machine target, while the CON021 signal converter conditions the probe response for connection to a machinery monitoring or protection system.
This type of measurement is commonly used where shaft movement must be monitored without placing a mechanical sensor directly against the rotating component. Turbines, compressors, pumps, generators, gearboxes, and other high-speed machinery can use eddy current measurement to observe shaft position or dynamic movement.
The probe is normally positioned toward a suitable conductive target on the rotating assembly. Changes in the probe-to-target relationship alter the eddy-current response, which is then processed by the associated converter. The resulting signal can be evaluated by the connected monitoring system for machinery condition and protection purposes.
For maintenance work, the probe, signal converter, associated cabling, mounting arrangement, and monitoring input should be checked as a complete measurement chain. A fault in any part of this chain can appear as an abnormal displacement or vibration signal.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Epro |
| Model | PR6423/13R-010+CON021 |
| Product Type | Eddy Current Sensor + Eddy Current Signal Converter |
| Sensor Model | PR6423/13R-010 |
| Signal Converter Model | CON021 |
| 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
- PR6423/13R-010 eddy current sensor for non-contact machine measurement
- CON021 signal converter for processing the probe signal
- Suitable for monitoring relative movement between a probe and conductive target
- Non-contact sensing avoids direct mechanical contact with the rotating shaft
- Applicable to rotating machinery condition-monitoring systems
- Suitable for turbine, compressor, pump, generator, and gearbox applications
- Can be integrated with machinery monitoring and protection equipment
- Useful for continuous shaft-position and dynamic-movement monitoring
- Probe and converter combination forms a complete front-end measurement channel
Working Principle
The PR6423/13R-010 uses an eddy-current sensing principle to detect changes in the distance between the probe and a conductive target. The probe generates an electromagnetic field near the target surface, and the resulting eddy-current response changes as the target moves.
For a rotating shaft, small radial or axial movements change the probe gap. These changes are reflected in the electrical response of the sensing circuit and are passed to the CON021 signal converter.
The measurement path can be represented as:
Rotating Shaft → PR6423/13R-010 Probe → CON021 Signal Converter → Machinery Monitoring System → Alarm / Protection Logic
The converter conditions the probe signal so that the monitoring system can evaluate the measured machine movement. Depending on the monitoring channel, the resulting information can be used for shaft position, displacement, or vibration-related supervision.
Because the sensing method does not require physical contact with the rotating target, probe alignment, mounting rigidity, target condition, and probe gap become important installation factors.
Role in a Rotating Machinery Condition Monitoring Architecture
The PR6423/13R-010+CON021 combination operates at the machine measurement layer of a rotating-equipment monitoring system.
Rotating Equipment → Eddy Current Probe → Signal Converter → Monitoring System → Alarm / Shutdown → Operator Interface
| System Element | Function |
|---|---|
| Rotating Shaft | Provides the conductive target used for measurement |
| PR6423/13R-010 | Detects changes in probe-to-target distance |
| CON021 | Conditions the eddy-current probe signal |
| Extension Cable | Connects the sensing element with the associated signal-conditioning circuit |
| Machinery Monitoring System | Processes and evaluates the measurement |
| Vibration Monitoring Channel | Evaluates dynamic shaft movement where applicable |
| Shaft Position Channel | Monitors relative shaft displacement |
| Protection System | Generates configured alarms or shutdown actions |
| DCS / PLC | Receives selected machinery data for process supervision |
| Operator Interface | Displays machine condition and alarm information |
| Maintenance System | Uses condition data for troubleshooting and maintenance planning |
Industrial Applications
| Application | Typical Use |
|---|---|
| Steam Turbines | Monitoring shaft position and dynamic mechanical movement |
| Gas Turbines | Rotating-shaft condition and displacement monitoring |
| Centrifugal Compressors | Shaft movement and machinery protection |
| Pumps | Monitoring abnormal shaft movement and vibration-related conditions |
| Generators | Relative shaft movement and rotating-equipment supervision |
| Gearboxes | Monitoring rotating components and mechanical condition |
| Turboexpanders | Shaft displacement and machinery protection |
| Industrial Fans | Continuous monitoring of rotating assemblies |
| Process Machinery | Condition monitoring of critical rotating equipment |
| Machinery Test Rigs | Non-contact measurement of dynamic mechanical movement |
Installation and Maintenance
- Verify the complete sensor combination before installation, including the PR6423/13R-010 probe and CON021 signal converter.
- Confirm the probe mounting location and make sure the sensor is correctly positioned toward the intended conductive target.
- Set the probe gap correctly according to the applicable installation requirements before commissioning the measurement channel.
- Inspect the target surface for deposits, mechanical damage, excessive wear, or other conditions that could influence the eddy-current response.
- Secure the probe mounting to prevent movement of the stationary sensor during machine operation.
- Inspect all cable connections for looseness, damaged insulation, excessive bending, or other physical problems.
- Verify the probe and converter combination before connecting the output to the machinery monitoring system.
- Check signal wiring and polarity to ensure that the converter output is correctly connected to the designated monitoring input.
- Observe the measurement during commissioning and compare the signal behavior with the known operating condition of the machine.
- Monitor for signal fluctuations during normal operation and investigate sudden changes or intermittent readings.
- Recheck probe position after machine maintenance whenever work has been performed around the shaft, bearing housing, probe bracket, or associated cabling.
- Keep installation and maintenance records including probe replacement, converter replacement, and relevant measurement observations for future troubleshooting.
Related Components
| Component | Function |
|---|---|
| PR6423 Series Eddy Current Probe | Provides non-contact displacement measurement |
| CON021 Signal Converter | Conditions the eddy-current probe signal |
| Probe Extension Cable | Connects the probe to the associated signal-conditioning equipment |
| Machinery Monitoring System | Processes and displays machine measurements |
| Vibration Monitoring Module | Evaluates dynamic shaft movement |
| Shaft Position Monitoring Channel | Monitors relative shaft displacement |
| Probe Mounting Hardware | Maintains the required probe position |
| Machinery Protection System | Provides alarm and shutdown functions |
| DCS / PLC Interface | Transfers selected machinery information to the control system |
| Turbine Monitoring System | Supervises critical turbine operating conditions |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| Epro PR6423 Series | Eddy Current Sensors | Non-contact shaft displacement and vibration measurement |
| Epro PR6423/13R | Eddy Current Sensor | Rotating machinery monitoring |
| Epro CON021 | Eddy Current Signal Converter | Probe signal conditioning |
| Epro PR6423/10R | Eddy Current Sensor | Non-contact rotating-machine measurement |
| Epro PR6424 Series | Eddy Current Sensors | Machinery displacement monitoring |
| Epro PR6422 Series | Eddy Current Sensors | Non-contact proximity measurement |
| Epro Machinery Protection Systems | Monitoring System | Turbine and rotating-equipment protection |
Key Advantages
- Combines eddy current sensing and signal conversion in one measurement chain
- Non-contact measurement minimizes mechanical interaction with rotating components
- Suitable for critical rotating machinery
- Supports shaft displacement and condition-monitoring applications
- Applicable to turbines, compressors, pumps, generators, and gearboxes
- Can be integrated with machinery monitoring and protection systems
- Useful for continuous supervision of rotating-equipment condition
Technical FAQs
What type of measurement is the PR6423/13R-010 used for?
The PR6423/13R-010 is an eddy current sensor for non-contact measurement of movement between the probe and a conductive target. In rotating machinery, this principle can be used for shaft displacement, position, and vibration-related monitoring.
What does the CON021 signal converter do?
The CON021 processes the electrical response from the eddy current probe and conditions the measurement signal for use by the connected machinery monitoring or protection equipment.
What can cause an abnormal signal from an otherwise correctly operating probe?
An abnormal signal can result from incorrect probe positioning, unsuitable probe gap, target-surface contamination or damage, unstable mounting, cable problems, converter issues, or an actual change in shaft movement. The complete measurement chain should therefore be checked before replacing individual components.
Can this sensor combination be used for turbine and compressor monitoring?
Yes. Eddy current sensing is suitable for non-contact monitoring of rotating components, making this type of probe-and-converter combination applicable to turbine, compressor, pump, generator, and other rotating-machinery monitoring systems when the associated monitoring architecture is compatible.