High-Precision Vibration Monitoring for Critical Industrial Machinery
The Epro PR9268/017-100 Electrodynamic Velocity Sensor is designed for accurate absolute vibration velocity measurement in industrial machinery monitoring systems. It is widely used in turbomachinery applications to evaluate mechanical condition and support continuous performance monitoring of rotating equipment.
Based on an electrodynamic self-generating principle, the sensor converts mechanical vibration directly into a proportional electrical signal without requiring external power. Its stable signal behavior and proven industrial design make it suitable for long-term condition monitoring in demanding environments.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Epro |
| Model Number | PR9268/017-100 |
| Product Type | Electrodynamic Velocity Sensor |
| Measurement Function | Absolute vibration velocity monitoring |
| Operating Principle | Electrodynamic induction system |
| Sensitivity | 17.5 mV/mm/s ±5% |
| Frequency Range | 14 Hz – 1000 Hz |
| Natural Frequency | 14 Hz ±7% @ 20°C |
| Linearity | < 2% |
| Output Signal | Analog voltage proportional to vibration velocity |
| Measurement Range | Up to ±500 µm (typical application range) |
| Maximum Acceleration | 10 g continuous / 20 g intermittent |
| Transverse Sensitivity | < 0.1 @ 80 Hz |
| Coil Resistance | ~1723 Ω ±2% |
| Inductance | ≤ 90 mH |
| Active Capacitance | < 1.2 nF |
| Housing Material | Stainless steel |
| Mounting Type | Threaded industrial stud |
| Operating Temperature | -20°C to +100°C |
| Protection Class | IP65 (industrial sealed design) |
| Weight (Approx.) | 0.8 kg |
Application Areas
Turbomachinery Monitoring Systems
Used for vibration measurement in steam turbines, gas turbines, and hydro turbines.
Compressor Units
Supports continuous monitoring of mechanical condition in industrial compression systems.
Pumping Systems
Helps detect vibration trends and mechanical imbalance in rotating equipment.
Power Generation Facilities
Applied in generator and auxiliary machinery monitoring systems.
Industrial Rotating Equipment
Suitable for general-purpose vibration monitoring in heavy industrial environments.
Key Advantages
Stable Measurement Performance
Provides consistent vibration velocity output for long-term monitoring reliability.
Self-Powered Operation
No external excitation required, simplifying system integration.
Proven Industrial Design
Widely used in critical machinery protection and condition monitoring systems.
High Signal Integrity
Maintains stable output across varying industrial operating conditions.
Durable Construction
Designed for continuous use in harsh industrial environments.
Easy Integration
Compatible with standard vibration monitoring and protection systems.
Technical FAQs
1. What is the main function of this sensor?
It measures absolute vibration velocity in industrial machinery.
2. What technology does it use?
It uses an electrodynamic self-generating induction principle.
3. Does it require external power?
No, it operates without external power supply.
4. What equipment is it used with?
It is used with turbines, compressors, pumps, and industrial motors.
5. What type of signal does it output?
It outputs an analog voltage proportional to vibration velocity.
6. What is the operating temperature range?
It operates between -20°C and +100°C.
7. Is it suitable for continuous monitoring?
Yes, it is designed for continuous industrial monitoring applications.
8. What industries use this model?
Power generation, oil & gas, petrochemical, and heavy industry sectors.
9. Is it suitable for turbomachinery?
Yes, it is commonly used in turbine and compressor monitoring systems.
10. Why is this model widely used?
Because it provides stable, maintenance-friendly, and reliable vibration measurement for critical equipment.
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