Introduction & Technical Overview
The Epro PR6423/003-130 is an 8 mm eddy current proximity sensor designed for high-precision, non-contact measurement of shaft displacement and vibration in rotating machinery. It is engineered for continuous condition monitoring in industrial environments where reliability and signal stability are critical.
Operating on the eddy current principle, the sensor detects changes in distance between the probe tip and a conductive target surface. These variations are converted into proportional electrical signals, enabling accurate monitoring of rotor dynamics even under harsh conditions such as oil contamination, high humidity, and mechanical vibration.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Epro |
| Model | PR6423/003-130 |
| Sensor Type | Eddy Current Displacement Sensor |
| Measurement Principle | Non-contact eddy current |
| Sensor Head Diameter | 8 mm |
| Application | Rotating machinery monitoring |
| Measured Parameters | Vibration, displacement, eccentricity, axial position |
| Operating Temperature | -35°C to 180°C |
| Mounting Type | Proximity probe system |
| Output Type | Requires compatible signal conditioning system |
| Dimensions | Probe-dependent configuration |
| Weight | 0.1 kg (0.22 lb) |
Applications
This sensor is widely used in condition monitoring systems for turbines, compressors, pumps, and generators. It is typically installed to measure radial vibration, axial displacement, shaft eccentricity, and rotor position during both transient and steady-state operating conditions.
In power plants, it supports turbine protection systems by continuously tracking rotor behavior. In oil and gas facilities, it is used for compressor health monitoring to detect early signs of imbalance or misalignment. It is also applied in predictive maintenance systems where long-term trend analysis helps reduce unplanned downtime and improve asset reliability.
Advantages
The PR6423/003-130 offers strong measurement stability due to its non-contact eddy current operating principle, which is unaffected by oil, dust, or non-conductive contamination. Its 8 mm probe design provides a balance between installation flexibility and measurement sensitivity.
The sensor delivers high linearity and repeatability, making it suitable for critical machinery protection and monitoring systems. It performs reliably under demanding industrial conditions, including elevated temperatures and high vibration environments.
Technical FAQs
1. What measurement principle does this sensor use?
It uses eddy current technology for non-contact displacement measurement.
2. Does it require direct contact with the shaft?
No, it operates without physical contact.
3. What parameters can it measure?
It measures vibration, displacement, eccentricity, and axial movement.
4. Is it suitable for turbine applications?
Yes, it is widely used in turbine monitoring and protection systems.
5. Can it operate in oily environments?
Yes, oil and non-conductive contaminants do not significantly affect performance.
6. What type of materials can it measure against?
It is calibrated for conductive metals such as steel.
7. Is it used in predictive maintenance systems?
Yes, it is commonly integrated into predictive maintenance architectures.
8. Does installation require calibration?
Yes, correct probe gap calibration is required for accurate output.
9. Can it handle high-frequency vibration signals?
Yes, it is designed for dynamic rotating machinery monitoring.
10. Is it suitable for continuous operation?
Yes, it is designed for 24/7 industrial monitoring.
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