Excellent PLC
Product Introduction
The Epro PR6424/103-100 16 mm Eddy Current Sensor is a high-precision, non-contact vibration and displacement probe designed for continuous monitoring of rotating machinery such as turbines, compressors, motors, and large industrial fans. Using proven eddy-current technology, it delivers real-time measurements of shaft vibration, radial displacement, and axial position without mechanical wear. Its rugged design and stable performance make it ideal for critical applications in power generation, petrochemical plants, steel mills, and other heavy industries where reliability and accuracy are essential.
Product Parameters
| Parameter | Specification |
|---|---|
| Sensor Type | Eddy Current Displacement / Vibration Sensor |
| Model | PR6424/103-100 |
| Sensor Head Diameter | 16 mm |
| Weight | 0.2 kg |
| Measurement Range | 0–4 mm (typical configurable range) |
| Linearity | ≤ ±0.25 % of full scale |
| Frequency Response | 0–10 kHz (–3 dB) |
| Operating Temperature Range | –35 °C to +180 °C (sensor head) |
| Storage Temperature Range | –40 °C to +200 °C |
| Power Supply (via driver) | –24 V DC nominal |
| Output Signal | Non-contact analog proximity signal compatible with CON021 or similar drivers |
| Insulation Resistance | ≥ 100 MΩ @ 500 V DC |
| Environmental Protection | IP67 |
| Mounting Thread | M16 × 1.5 or compatible adapter |
| Housing Material | Stainless steel probe body |
Applications
The PR6424/103-100 is engineered for continuous condition monitoring of demanding industrial equipment, including:
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Steam and Gas Turbines – detecting rotor vibration and axial displacement to prevent catastrophic failures.
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Compressors and Pumps – identifying imbalance, misalignment, and early bearing wear.
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Large Electric Motors and Generators – providing long-term vibration trending for predictive maintenance.
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Industrial Fans & Blowers – monitoring shaft stability in high-temperature environments.
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Petrochemical and Refinery Equipment – performing accurately in hazardous or explosive atmospheres.
Its wide temperature tolerance and robust construction enable installation in harsh zones, ensuring reliable measurements even under severe thermal and mechanical stress.
Advantages
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High Precision Measurement: Maintains excellent linearity and repeatability across the full measurement range.
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Robust Thermal Performance: Operates accurately from –35 °C to +180 °C without signal drift.
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Strong Electromagnetic Immunity: Shielded design resists interference in high-EMI industrial settings.
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Non-Contact Operation: Eliminates mechanical wear and minimizes maintenance.
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Seamless System Integration: Fully compatible with Epro CON021 drivers and common monitoring systems.
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Long-Term Stability: Ideal for permanent installation in safety-critical machinery protection setups.
FAQ
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What gap voltage range provides optimal linear output for the PR6424/103-100?
Typically maintained between 7 V and 11 V DC, adjustable through the driver module to match shaft material properties. -
How does the sensor maintain accuracy in areas with strong electromagnetic interference?
A shielded low-noise design and high-quality internal filtering ensure excellent immunity to EMI. -
What calibration process guarantees precise linearity across the measurement range?
Each sensor is factory calibrated using certified displacement standards to achieve ≤ ±0.25 % full-scale linearity. -
How can this probe be arranged to measure both radial and axial displacement on the same machine?
By installing two sensors at orthogonal angles and connecting them to a dual-channel monitoring system for simultaneous readings. -
Which shaft materials deliver the most reliable eddy-current response with this sensor?
Ferromagnetic alloys such as carbon steel and nickel-based alloys provide optimal signal strength without surface preparation. -
What internal features compensate for temperature-related measurement drift?
Temperature-compensated circuitry and high-grade materials stabilize output across the full operating range. -
What grounding practice is recommended to minimize electrical noise and avoid ground loops?
A single-point grounding scheme at the monitoring rack or driver interface is recommended for best signal integrity. -
What protective characteristics enable the probe to withstand aggressive industrial environments?
A stainless-steel body with IP67 protection guards against moisture, dust, and chemical exposure. -
How does the wide frequency response support high-speed machinery monitoring?
The 0–10 kHz bandwidth ensures accurate detection of rapid vibration changes in turbines and compressors. -
What precautions make the sensor suitable for installation in hazardous or explosive zones?
When paired with certified intrinsic-safety barriers and approved driver modules, it meets ATEX and comparable hazardous-area requirements.
Recommended Related Models (Same Series or Compatible)
| Model | Description |
|---|---|
| PR6424/001-030 | Standard 8 mm probe for general vibration monitoring |
| PR6424/002-031 | 5 mm probe variant with extended temperature capability |
| PR6424/003-031 | Compact probe designed for tight installation spaces |
| PR6424/005-010 | High-sensitivity version for small shaft displacement |
| PR6424/014-040 | Extended frequency response for high-speed rotating equipment |
| PR6424/01CS | Corrosion-resistant probe for offshore and marine use |
Popular Epro Models (Same Brand)
| Model | Description |
|---|---|
| MMS3120/022-100 | Advanced machinery monitoring module with high-speed processing |
| MMS3125/022-020 | High-performance vibration monitoring card |
| PR6423/005-010 | Eddy current sensor with compact probe head |
| CON021 | Proximity sensor driver and signal conditioner |
| CON041 | High-performance driver for eddy current probes |
| PR6425/010-120 | High-temperature eddy current sensor for extreme environments |
