Excellent PLC
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| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Epro PR6426/000-031 32mm Eddy Current Sensor is a high-precision, non-contact measurement device designed for the monitoring of rotating machinery. It provides accurate measurement of shaft vibration, axial displacement, and rotational position, making it an essential tool for predictive maintenance and condition monitoring in industrial environments.
The sensor employs the eddy current principle, where an electromagnetic field is induced at the sensor tip and variations caused by conductive targets are measured. This ensures high accuracy without mechanical contact, reducing wear and maintenance requirements. The PR6426/000-031 is particularly robust, built with stainless-steel housing and hermetic sealing to withstand high temperatures, oil, dust, and vibration.
This model is compatible with Epro’s standard signal conditioning converters, allowing linear output to monitoring systems for real-time analysis of shaft health. Its 32mm sensor head diameter provides enhanced detection capability for larger shafts or broader target surfaces, ensuring precise and reliable operation in critical machinery applications such as turbines, compressors, and generators.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | PR6426/000-031 |
| Sensor Type | Eddy Current Proximity Probe |
| Measuring Principle | Non-contact electromagnetic induction (eddy current) |
| Sensor Head Diameter | 32 mm |
| Measuring Range | 0.25 mm – 4.0 mm (typical, depends on target material) |
| Linearity | ≤ ±1% of full scale |
| Frequency Response | DC to 10 kHz (-3 dB) |
| Sensitivity | 4–8 mV/µm (depending on converter configuration) |
| Target Material | Ferromagnetic and conductive materials (e.g., steel, nickel alloys) |
| Operating Temperature | -35 °C to +180 °C |
| Storage Temperature | -40 °C to +200 °C |
| Housing Material | Stainless steel (AISI 316L) |
| Protection Class | IP67 (fully sealed, dust and moisture resistant) |
| Mounting Thread | M32 × 1.5 |
| Output Signal | Compatible with Epro converters (voltage or current output) |
| Weight | 0.8 kg |
| Compliance | CE, RoHS, ATEX Zone 2 (optional) |
Product Applications
The PR6426/000-031 is widely used for dynamic monitoring of critical rotating machinery. Applications include:
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Steam and gas turbines – Shaft vibration and axial displacement monitoring.
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Compressors and pumps – Rotor and bearing health monitoring.
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Generators and motors – Continuous shaft position and vibration analysis.
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Gearboxes and turboexpanders – Detection of eccentric motion and mechanical misalignment.
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Industrial process plants – Integration with predictive maintenance and condition monitoring systems.
The sensor’s robust design allows it to operate reliably in high-temperature, oily, and vibrating environments, ensuring accurate real-time data for protective and control systems.
Product Advantages
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Non-Contact Measurement – Reduces wear, increasing operational lifespan and reducing maintenance.
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High Accuracy and Linearity – Provides precise displacement and vibration readings over its entire measuring range.
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Wide Frequency Response – Captures both slow and high-speed vibration phenomena.
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Rugged Design – Stainless steel housing and IP67 sealing protect against dust, moisture, and mechanical stress.
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Enhanced Detection Range – 32mm sensor head allows wider coverage for larger shafts.
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Converter Compatibility – Integrates with standard Epro signal conditioning units for linear output.
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Stable Performance in Extreme Conditions – Maintains accuracy at high temperatures and under mechanical vibration.
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Industrial Proven Reliability – Used extensively in turbine, compressor, and generator monitoring worldwide.
FAQ
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What is the principle of operation of the PR6426/000-031 sensor?
It uses eddy current technology, detecting variations in the electromagnetic field caused by conductive targets. -
Which materials can this sensor measure?
The sensor is compatible with ferromagnetic and conductive materials such as steel and nickel alloys. -
Is the sensor suitable for high-speed rotating machinery?
Yes, with a frequency response up to 10 kHz, it captures both high and low-speed shaft vibrations. -
Can the sensor measure both radial and axial displacement?
Yes, depending on the installation orientation and configuration. -
How is the sensor integrated into monitoring systems?
It connects through Epro signal conditioning converters, providing linear voltage or current output. -
Does temperature affect sensor accuracy?
The sensor design includes compensation features to maintain stable measurement over a wide temperature range. -
Is the PR6426/000-031 suitable for harsh environments?
Yes, stainless steel housing and IP67 sealing ensure reliable performance in dusty, oily, and vibrating conditions. -
Is field calibration required after installation?
The sensor is factory-calibrated; however, field adjustment can be performed using Epro configuration tools if needed. -
Can the sensor be used in redundant monitoring setups?
Yes, it supports integration into dual-channel or redundant monitoring architectures. -
What is the weight and size of the sensor?
The sensor head has a diameter of 32 mm and a total weight of 0.8 kg, suitable for most standard installations.
Related Models (Same Series)
| Model | Description | Sensor Head Diameter | Weight |
|---|---|---|---|
| PR6426/000-000 | Standard eddy current probe | 32 mm | 0.8 kg |
| PR6426/000-010 | High-temperature variant | 32 mm | 0.8 kg |
| PR6426/000-020 | Pressure-resistant version | 32 mm | 0.8 kg |
| PR6426/000-030 | Converter compatible version | 32 mm | 0.92 kg |
| PR6426/000-040 | Compact housing version | 25 mm | 0.6 kg |
| PR6426/000-050 | Explosion-proof version | 32 mm | 0.9 kg |
Popular Models from the Same Brand (Epro)
| Model | Description | Measurement Type | Weight |
|---|---|---|---|
| PR6423/002-030 | Standard eddy current sensor | Vibration/Displacement | 0.6 kg |
| PR6424/014-040 | Proximity probe | Axial displacement | 0.7 kg |
| PR6425/010-030 | Shaft vibration probe | Vibration | 0.8 kg |
| PR6422/010-030 | Compact displacement sensor | Bearing displacement | 0.5 kg |
| MMS3120/022-100 | Vibration monitoring module | Condition monitoring | 1.2 kg |
| MMS6822 | Dual-channel vibration monitor | Shaft and casing vibration | 1.5 kg |
