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The Epro PR6424/001-100 is a 16 mm eddy current sensor for non-contact measurement of rotating machinery components. It belongs to the EPRO PR6424 sensor family and is used as the sensing element in machinery monitoring and protection arrangements.
The sensor operates by detecting changes in the electromagnetic relationship between its sensing element and a conductive metallic target. When installed near a rotating shaft, the probe can detect changes in the relative position between the sensor and the shaft without requiring physical contact.
In turbine, compressor, generator, and other rotating equipment applications, the PR6424/001-100 can form part of a complete measurement chain together with compatible EPRO measuring electronics and machinery monitoring equipment. Its role is focused on sensing rather than independent signal analysis or control.
| Parameter | Specification |
|---|---|
| Product Model | PR6424/001-100 |
| Product Type | Eddy Current Sensor |
| Product Family | PR6424 |
| Manufacturer | Epro / EPRO |
| Sensor Type | Non-Contact Eddy Current Sensor |
| Measurement Principle | Eddy Current Measurement |
| Target Type | Conductive Metallic Target |
| Measurement Method | Non-Contact |
| Primary Application | Rotating Machinery Monitoring |
| Typical Measurement | Shaft Position / Relative Movement |
| System Integration | EPRO Eddy Current Measurement System |
| Installation | Rotating Equipment |
| Sensor Head Diameter | 16 mm |
| Weight | 0.2 kg |
The PR6424/001-100 works according to the eddy current measurement principle. The probe establishes an electromagnetic field around its sensing area. When a conductive metallic target, such as a machine shaft, is positioned within this field, eddy currents are generated in the target material.
The electrical response of the sensing circuit changes as the distance or relative position between the probe and target changes. Compatible EPRO measuring electronics interpret this response and convert it into a measurement that can be used by the machinery monitoring system.
PR6424/001-100 → Conductive shaft / target → Eddy current response → Measuring electronics → Monitoring system
Because the probe does not need to contact the shaft, the measurement point remains isolated from direct mechanical contact with the rotating component. This makes the sensing method suitable for applications where continuous observation of shaft movement is required.
The sensor is therefore one part of a complete measurement chain. Proper installation depends on the relationship between the probe, target surface, mounting arrangement, cable connection, and associated measuring electronics.
The PR6424/001-100 functions as the sensing element in an EPRO eddy current measurement architecture. It detects changes at the machine interface and passes the corresponding sensor response to the compatible measuring electronics for further processing.
| System Layer | Typical Component | Function |
|---|---|---|
| Machinery Protection | EPRO Monitoring System | Evaluates machinery measurement information |
| Signal Processing | EPRO Eddy Current Measuring Electronics | Interfaces with the probe and processes the sensor response |
| Sensing | PR6424/001-100 | Detects relative movement between the probe and conductive target |
| Machine Interface | Shaft / Metallic Target | Provides the conductive surface being monitored |
| Mechanical System | Turbine / Compressor / Generator | Produces the rotating movement being measured |
| Maintenance System | Condition Monitoring Platform | Uses measurement information for machinery assessment |
| Application | Sensor Role |
|---|---|
| Steam Turbines | Provides non-contact sensing for shaft-related monitoring |
| Gas Turbines | Supports rotating shaft measurement within machinery monitoring systems |
| Compressors | Monitors relative shaft movement in rotating equipment |
| Generators | Provides a sensing point for rotating machinery condition monitoring |
| Pumps | Supports non-contact measurement of rotating components |
| Machinery Protection | Supplies sensor information to the associated monitoring electronics |
| Predictive Maintenance | Provides measurement data for tracking changes in machine behavior |
| Component | Function in the System |
|---|---|
| EPRO Eddy Current Measuring Electronics | Interfaces with and processes the sensor signal |
| EPRO Machinery Monitoring System | Receives and evaluates machinery measurement information |
| Sensor Extension Cable | Provides the connection between the probe and associated electronics |
| Shaft / Metallic Target | Provides the conductive target for eddy current sensing |
| Probe Mounting Hardware | Positions and secures the sensor near the monitored target |
| Machinery Protection System | Uses sensor measurements for monitoring and protection |
| Rotating Equipment | Provides the mechanical movement being measured |
| Model | Product Type | Typical Relationship |
|---|---|---|
| Epro PR6422 Series | Eddy Current Sensor | Related EPRO sensor family for machinery monitoring |
| Epro PR6423 Series | Eddy Current Sensor | Related non-contact eddy current sensor family |
| Epro PR6425 Series | Eddy Current Sensor | Related sensor family for rotating machinery applications |
| Epro PR6426 Series | Eddy Current Sensor | Related EPRO machinery monitoring sensor family |
| Epro CON 0xx Series | Eddy Current Measuring Electronics | Associated electronics family for EPRO eddy current sensors |
The PR6424/001-100 is an eddy current sensor used for non-contact measurement of relative movement between the probe and a conductive metallic target. In rotating machinery, this can include shaft position or displacement-related measurements.
The probe generates an electromagnetic field around its sensing area. Changes in the position of the conductive shaft alter the eddy current response, which is detected by the sensing circuit and interpreted by compatible measuring electronics.
No. The sensor is part of a larger measurement architecture. It normally works with compatible EPRO measuring electronics and a machinery monitoring system that processes and evaluates the resulting measurement.
Probe mounting, sensor-to-target positioning, target surface condition, cable integrity, and the associated measuring electronics can all affect the resulting measurement. The installation should therefore be checked as a complete measurement chain rather than evaluating the probe in isolation.