Overview
The EPRO PR6426/000-030 + CON021 system is a high-performance, non-contact eddy current sensor designed for precise measurement of radial and axial shaft displacement, position, eccentricity, and speed. Manufactured by EPRO, a leader in automation control products, this system is ideal for critical turbomachinery applications such as steam, gas, and hydro turbines, compressors, pumps, and fans. With rugged construction and high durability, it ensures reliable performance even in demanding industrial environments.
Key Features
- Non-Contact Measurement: The EPRO PR6426/000-030 sensor offers non-contact measurement of shaft displacement, making it ideal for applications requiring minimal wear and tear.
- Wide Measurement Range: The sensor can measure static displacement from +4.0 mm (0.157”) and accommodates shaft diameters greater than 200 mm (7.87”).
- High Sensitivity: With a sensitivity of 2 V/mm (50.8 mV/mil) and maximum deviation of ±1.5%, the sensor provides high accuracy and reliable measurements.
- Wide Operating Temperature: The EPRO PR6426/000-030 sensor operates in extreme temperatures ranging from -35°C to +180°C (-31°F to 356°F), ensuring functionality in diverse conditions.
- Durable Construction: Built with stainless steel and a sturdy LMgSi 0.5 F22 housing material, the sensor ensures high resilience to mechanical stress and environmental exposure.
- Shock and Vibration Resistance: The sensor tolerates up to 5g at 60 Hz at 25°C (77°F), making it suitable for high-vibration environments.
Applications
- Turbomachinery: The EPRO PR6426/000-030 sensor is perfect for monitoring turbines, compressors, and pumps, tracking both radial and axial movements with high precision.
- Speed and Position Monitoring: It measures the radial and axial displacement, position, eccentricity, and speed, making it indispensable in rotating equipment diagnostics.
- Industrial Use: Suitable for a variety of industrial applications, such as those found in metalworking, plastics processing, and quality control in manufacturing.
Technical Specifications
| Parameter | Value |
|---|---|
| Sensitivity | 2 V/mm (50.8 mV/mil) ±1.5% max |
| Air Gap (Center) | Approx. 5.5 mm (0.22″) Nominal |
| Range | Static: +4.0 mm (0.157”) |
| Shaft Diameter | ≥200 mm (7.87”) |
| Operating Temperature | -35°C to +180°C (-31°F to 356°F) |
| Protection Class | IP65 |
| Shock and Vibration | 5g @ 60 Hz @ 25°C (77°F) |
| Weight (Sensor with 1m Cable) | Approx. 150 grams (5.29 oz) |
| Dimensions | 60 mm x 32 mm x 20 mm |
| Housing Material | Stainless Steel, LMgSi 0.5 F22 |
| Cable Length | 1 meter (non-armored) |
| Supply Voltage Range | -23V to -32V (Output Range -4V to -20V) |
| Output Range | -2V to -18V, -4V to -20V |
| Connector Type | Self-locking Lemo-plug |
| Operating Temperature of Signal Converter | -30°C to +100°C (-22°F to +212°F) |
| Housing Material (Signal Converter) | LMgSi 0.5 F22 |
Dynamic Performance
- Frequency Range: 0 to 20,000 Hz
- Rise Time: <15 μs
- Long-Term Drift: < 0.3%
- Max Surface Speed: 2,500 m/s (98,425 ips)
System Description
The EPRO PR6426/000-030 sensor, in combination with the CON021 signal converter, creates a robust system designed for precision monitoring in critical rotating machinery applications. The sensor uses the eddy current principle to measure the displacement of ferromagnetic materials, providing highly accurate readings without physical contact.
The CON021 signal converter processes the data from the sensor, amplifying the signal for further analysis. With its ability to measure a wide range of frequencies and its high sensitivity, this system delivers reliable and continuous measurements in real-time, helping prevent machine malfunctions and unplanned downtime.
Conclusion
The EPRO PR6426/000-030 + CON021 system provides a robust and reliable solution for measuring shaft displacement and other key parameters in critical industrial machinery. Its non-contact measurement technology, combined with high accuracy, durability, and a wide operating temperature range, makes it ideal for use in turbines, compressors, and various other rotating equipment. Whether you’re in power generation, oil & gas, or manufacturing, this system ensures the optimal performance of your machines.
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