High-Precision Vibration Monitoring for Critical Industrial Machinery
The Epro PR9268/601-000 Electrodynamic Velocity Sensor is designed for absolute vibration velocity measurement in critical industrial machinery systems. It is widely used in turbomachinery applications to evaluate mechanical condition and support continuous equipment performance monitoring.
Based on an electrodynamic self-generating principle, the sensor converts mechanical vibration into a proportional electrical signal without requiring external power. Its stable output characteristics and robust construction make it suitable for long-term operation in demanding industrial environments.
Technical Specifications
| Specification | Details |
|---|
| Manufacturer | Epro |
| Model Number | PR9268/601-000 |
| Product Type | Electrodynamic Velocity Sensor |
| Measurement Function | Vibration velocity monitoring |
| Operating Principle | Electrodynamic self-generating system |
| Sensitivity | 22.0 mV/mm/s ±5% / 16.7 mV/mm/s (multi-output load dependent) |
| Frequency Range | 10 Hz – 1000 Hz |
| Natural Frequency | 8 Hz ± 1.5 Hz |
| Linearity | < 2% |
| Output Signal | Analog voltage proportional to vibration velocity |
| Measurement Direction | Vertical (±60° orientation variant) |
| Maximum Acceleration | 10 g continuous / 20 g intermittent |
| Transverse Sensitivity | 0.10 @ 80 Hz |
| Resistance | 3270 Ω ±10% / 3770 Ω ±10% (channel dependent) |
| Inductance | ≤ 160 mH |
| Damping Factor | ~0.7 @ 20°C |
| Housing Material | Stainless steel |
| Cable Type | Armored industrial cable (typically 5 m) |
| Connector Type | Industrial plug (e.g., Harting-type) |
| Operating Temperature | -20°C to +200°C |
| Protection Class | IP65 (industrial sealed design) |
| Dimensions (Approx.) | 160 × 160 × 120 mm |
| Weight (Approx.) | 0.8–1.05 kg |
Application Areas
Turbomachinery Monitoring
Used for vibration measurement in steam turbines, gas turbines, and hydro turbine systems.
Compressor Systems
Supports continuous monitoring of mechanical behavior in industrial compressor units.
Pumping Systems
Helps evaluate vibration trends and operational stability in fluid handling equipment.
Power Generation Facilities
Applied in condition monitoring systems for generators and energy production equipment.
Industrial Rotating Equipment
Suitable for general rotating machinery requiring continuous vibration analysis.
ey Advantages
Stable Signal Generation
Provides consistent vibration velocity output for reliable monitoring applications.
Self-Powered Operation
No external excitation required, simplifying system architecture.
High Temperature Capability
Designed for stable operation in elevated temperature industrial environments.
Rugged Industrial Design
Built to withstand continuous use in demanding mechanical conditions.
Accurate Long-Term Monitoring
Supports predictive maintenance strategies through stable measurement behavior.
Broad System Compatibility
Compatible with standard industrial monitoring and protection systems.
Technical FAQs
1. What is the main function of this sensor?
It measures absolute vibration velocity for industrial machinery monitoring.
2. What technology does it use?
It uses an electrodynamic self-generating measurement 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 generators.
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 +200°C.
7. What is the frequency range?
It operates within 10 Hz to 1000 Hz.
8. Is it suitable for continuous monitoring?
Yes, it is designed for continuous industrial operation.
9. What industries use this model?
Power generation, oil & gas, petrochemical, and heavy industry sectors.
10. Why is this model widely used?
Because it provides stable measurement performance, high durability, and reliable long-term monitoring capability.
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