Product Introduction
The Epro PR6426/010-020 32mm Eddy Current Sensor is a precision non-contact sensor designed to measure displacement, vibration, and shaft position in rotating and reciprocating machinery. It operates on the eddy current principle, detecting the distance between the probe tip and a conductive target surface, ensuring high accuracy and stability under a wide range of industrial conditions.
Developed as part of the Epro PR6426 series, this model provides outstanding performance for machinery protection and condition monitoring systems. It is typically used in conjunction with Epro’s CON021 converter, which processes and conditions the sensor’s analog signals into standardized outputs for monitoring systems. The PR6426/010-020 features a 32 mm probe head, delivering superior sensitivity, signal linearity, and operational reliability even in harsh environments exposed to heat, vibration, and contamination.
The sensor’s rugged construction and wide frequency response range make it ideal for continuous monitoring of turbines, compressors, pumps, and motors, where early detection of mechanical faults can prevent costly downtime.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | PR6426/010-020 |
| Manufacturer | Epro |
| Sensor Type | Eddy Current Displacement and Vibration Sensor |
| Measurement Principle | Non-contact eddy current induction |
| Measurement Range | 1.0 mm to 2.5 mm (depending on target material) |
| Sensor Head Diameter | 32 mm |
| Weight | 0.8 kg |
| Frequency Response | 0.5 Hz to 20 kHz |
| Output Signal | Differential AC voltage (via converter) |
| Power Supply (with converter) | +24 VDC nominal |
| Operating Temperature | -35°C to +180°C |
| Storage Temperature | -40°C to +200°C |
| Target Material | Ferromagnetic metals (steel, iron, nickel alloy) |
| Linearity Error | ≤ ±1% of full-scale measurement |
| Mounting Type | Threaded or flange mounting |
| Protection Rating | IP65 (sensor head and converter) |
| Typical Use | Shaft displacement, vibration, and position detection |
| Compliance | CE / ATEX Zone 2 certified |
Applications
The PR6426/010-020 Eddy Current Sensor is designed for precise, real-time monitoring of machinery health and movement in industrial and power generation environments. Its non-contact nature makes it ideal for measuring parameters that require high precision and durability in continuous operation.
Typical application areas include:
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Turbine and Compressor Monitoring: Measures shaft displacement, axial position, and vibration levels for machinery protection systems.
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Motor and Generator Monitoring: Detects rotor imbalance, eccentricity, and bearing wear to support predictive maintenance.
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Pumps and Fans: Monitors vibration amplitude and alignment in rotating equipment to prevent mechanical damage.
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Machinery Protection Systems: Integrates with Epro MMS monitoring platforms or PLC-based control systems for automated fault diagnostics.
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Industrial Automation: Provides precise feedback in automated production and motion control systems.
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High-Temperature Environments: Performs reliably in power plants, refineries, and heavy industrial installations exposed to heat and vibration.
Advantages
The Epro PR6426/010-020 offers several key advantages that make it one of the most trusted solutions in industrial condition monitoring:
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Non-Contact Precision Measurement: Eliminates mechanical wear, ensuring consistent accuracy over long operational periods.
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High Accuracy and Sensitivity: Provides precise displacement and vibration readings even under fluctuating conditions.
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Wide Frequency Range: Detects both low-frequency shaft movements and high-frequency vibrations for comprehensive monitoring.
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Temperature Resistance: Operates effectively up to +180°C, suitable for turbines and compressors.
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Excellent Signal Stability: Integrated shielding and signal conditioning minimize electromagnetic interference.
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Durable Industrial Design: Built for continuous use in harsh environments with exposure to vibration, dust, and oil.
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Easy Integration: Fully compatible with Epro’s CON021 converter and other monitoring systems.
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Low Maintenance: The non-contact principle and rugged design significantly reduce the need for recalibration or service.
FAQ
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What does this sensor measure?
It measures displacement, vibration, and shaft position using the non-contact eddy current principle. -
What materials can be used as measurement targets?
It is optimized for ferromagnetic metals such as steel, iron, and nickel alloys. -
What is the typical frequency response of the sensor?
The sensor has a wide frequency response range from 0.5 Hz up to 20 kHz, suitable for fast and slow rotating machinery. -
Is this sensor suitable for high-temperature environments?
Yes, it can operate reliably at temperatures up to +180°C, making it ideal for turbines, compressors, and power generation machinery. -
How is the sensor connected to the monitoring system?
It is connected via a shielded industrial cable to a compatible Epro CON021 converter, which outputs standardized analog signals. -
What is the linear accuracy of the measurement?
The sensor provides a linearity error within ±1% of the full-scale measurement range. -
Can the sensor measure both static and dynamic signals?
Yes, it can simultaneously detect static shaft displacement and dynamic vibration components. -
Is the sensor compatible with third-party monitoring systems?
Yes, the conditioned output from the CON021 converter is compatible with most industrial monitoring and data acquisition systems. -
Does the sensor require frequent recalibration?
No, recalibration is rarely needed due to its stable electronic design and non-contact measurement method. -
How does the sensor ensure signal stability in noisy environments?
It employs differential signal transmission and electromagnetic shielding to minimize the effects of electrical noise and interference.
Related and Series Models
| Model Number | Description |
|---|---|
| PR6426/000-000 | Standard 32mm eddy current probe for displacement measurement |
| PR6426/001-010 | Extended temperature version for high-heat machinery |
| PR6426/005-010 | Short-range sensor with enhanced linearity and accuracy |
| PR6426/008-000 | Compact probe for limited installation spaces |
| PR6426/010-000 | 32mm probe combined with signal conditioning converter |
| PR6426/012-000 | Explosion-proof variant for hazardous industrial environments |
Popular Epro Models
| Model Number | Description |
|---|---|
| PR6423/002-030+CON021 | Standard eddy current probe for vibration monitoring |
| PR6423/005-010 | Compact high-sensitivity displacement probe |
| PR6424/01CS | Precision proximity sensor for turbine shaft monitoring |
| PR6424/014-040+CON021 | Advanced eddy current sensor for machinery protection systems |
| MMS3120/022-100 | Multi-channel condition monitoring and protection module |
| PR6423/001-010-CN | Industrial eddy current sensor with signal conditioning output |
Company Information
E-mail: [email protected]
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Add: Alishan Building, 2 Lvling Rd, Siming District, Xiamen, Fujian, China, 361006
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