Product Introduction
The EPRO PR6425/010-A20 Eddy Current Sensor is a precision non-contact displacement and vibration measurement device engineered for critical industrial applications. Part of EPRO’s renowned PR6425 series, this sensor is optimized for monitoring rotating machinery such as turbines, generators, compressors, and motors.
Using the eddy current principle, the PR6425/010-A20 generates an alternating electromagnetic field and detects changes in impedance caused by the movement of a conductive target. This allows for accurate, real-time measurement of shaft vibration, axial displacement, and radial movement without physical contact. Its rugged stainless-steel construction, combined with advanced electromagnetic shielding, ensures consistent operation even in harsh industrial environments.
This sensor is fully compatible with EPRO CON021 and CON041 transducer drivers and integrates seamlessly into the MMS6000 and MMS3000 condition monitoring systems, enabling precise data acquisition and early detection of mechanical anomalies.
Technical Specifications
| Parameter | Description |
|---|---|
| Product Model | PR6425/010-A20 |
| Type | Eddy Current Displacement Sensor |
| Measurement Principle | Eddy Current (Non-contact) |
| Sensor Head Diameter | 16 mm |
| Measurement Range | ±2 mm to ±4 mm (depending on setup and target material) |
| Sensitivity | 4 mV/µm (typical) |
| Frequency Response | DC to 10 kHz |
| Linearity | ≤ ±1% of full scale |
| Operating Temperature | -35°C to +180°C |
| Storage Temperature | -40°C to +200°C |
| Output Signal | Voltage proportional to displacement |
| Supply Voltage | Via CON021/CON041 transducer driver |
| Housing Material | Stainless Steel |
| Mounting Type | Threaded mounting |
| Insulation Resistance | ≥ 100 MΩ |
| Protection Class | IP67 |
| Connection Type | Coaxial connector (EPRO standard) |
| Compatible Systems | MMS6000, MMS3000, PR6423, PR6424 |
| Sensor Head Diameter | 16 mm |
| Weight | 0.5 kg |
Product Applications
The PR6425/010-A20 is designed for continuous condition monitoring in high-performance industrial machinery. Common applications include:
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Turbines: Monitoring shaft vibration and axial displacement to prevent imbalance and bearing failure.
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Compressors and Pumps: Detecting misalignment, vibration amplitude, and potential rotor faults.
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Motors and Generators: Ensuring stable shaft operation and early detection of mechanical issues.
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Industrial Fans and Blowers: Identifying excessive vibration or instability in high-speed rotors.
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Power Plants: Integrating into predictive maintenance systems for continuous reliability.
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Petrochemical and Process Plants: Providing real-time shaft displacement data under high-temperature, high-vibration conditions.
Product Advantages
The EPRO PR6425/010-A20 Eddy Current Sensor offers several advantages for industrial users:
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High Precision: Provides accurate, repeatable measurements across the full displacement range.
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Non-contact Measurement: Eliminates wear and tear, reducing maintenance and extending operational stability.
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Robust Design: Stainless steel housing resists mechanical stress, corrosion, and high temperatures.
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Electromagnetic Immunity: Advanced internal shielding ensures stable operation in electrically noisy environments.
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Compact Form Factor: 16 mm probe head fits tight installation spaces without compromising performance.
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Seamless System Integration: Works with EPRO transducer drivers and monitoring systems for easy setup.
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Wide Frequency Response: Measures both static displacement and dynamic vibration reliably.
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Stable Long-Term Output: Ensures consistent performance over extended operational periods.
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Low Signal Drift: Maintains signal integrity under changing environmental conditions.
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Field-Proven Reliability: Widely used in mission-critical applications where equipment uptime is essential.
FAQ
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What principle does the PR6425/010-A20 use to measure displacement?
It employs the eddy current principle, detecting variations in electromagnetic impedance caused by target movement. -
Which monitoring systems can this sensor integrate with?
It integrates with EPRO MMS6000, MMS3000, and works with transducer drivers CON021 and CON041. -
What type of output signal does the sensor provide?
It provides a linear voltage signal proportional to the measured displacement. -
How linear is the sensor across its measurement range?
The sensor maintains linearity within ±1% of the full-scale measurement range. -
Can the sensor operate in environments with high electromagnetic interference?
Yes, it features advanced shielding to minimize EMI impact and maintain measurement stability. -
Does this sensor require an external power supply?
No, it receives power through the compatible transducer driver module (CON021/CON041). -
Is this sensor suitable for high-vibration applications?
Yes, its mechanical robustness and signal stability allow reliable operation in high-vibration machinery. -
What frequency range is supported by the PR6425/010-A20?
The sensor supports DC to 10 kHz, allowing measurement of both static and dynamic displacement. -
How should the sensor be mounted for optimal performance?
It should be securely mounted using threaded fittings to maintain alignment and minimize vibration effects. -
Is recalibration required after installation?
The sensor is factory-calibrated, but system-level calibration may be performed during integration to match specific machinery conditions.
Recommended Related Models (Same Series or Similar Types)
| Model | Description | Sensor Diameter | Weight |
|---|---|---|---|
| PR6425/010-130 | Standard range eddy current sensor | 16 mm | 0.5 kg |
| PR6425/010-140 | Medium-range displacement sensor | 16 mm | 0.5 kg |
| PR6425/010-141 | High-precision model | 16 mm | 0.5 kg |
| PR6425/011-A20 | High-temperature resistant version | 16 mm | 0.52 kg |
| PR6425/012-130 | Enhanced frequency response sensor | 16 mm | 0.5 kg |
| PR6424/000-030 | General-purpose eddy current probe | 8 mm | 0.35 kg |
Popular Models from the Same Brand (EPRO)
| Model | Description | Measurement Type | Weight |
|---|---|---|---|
| MMS6000 | Multi-channel machinery monitoring system | Vibration and displacement | 5.2 kg |
| MMS3120/022-100 | Vibration measurement module | Dynamic condition monitoring | 0.8 kg |
| MMS3125/022-020 | Signal conditioner for proximity sensors | Converts sensor output to voltage | 0.9 kg |
| PR6423/10R-010 | Shaft vibration and displacement sensor | Non-contact eddy current measurement | 0.45 kg |
| CON021 | Single-channel transducer driver | Signal conversion and amplification | 0.35 kg |
| CON041 | Dual-channel transducer driver | Advanced monitoring interface | 0.36 kg |
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