Product Summary
EPRO PR9268/201-000 is an electrodynamic velocity sensor designed for industrial vibration monitoring and machinery protection systems. It is widely used to measure absolute vibration velocity in critical rotating equipment such as turbines, compressors, pumps, and fans, helping detect early faults and prevent unexpected downtime.
Technical Information
| Parameter | Specification |
|---|---|
|
Manufacture |
EPRO |
|
Model |
PR9268/201-000 |
|
Description |
Electrodynamic Velocity Sensor |
| Sensitivity | 28.5 mV/mm/s (±5%) |
| Frequency Range | 4 – 1000 Hz |
| Natural Frequency | 4.5 Hz ± 0.75 Hz |
| Max Vibration Amplitude | 3000 µm (peak-to-peak) |
| Max Acceleration | 10g (continuous), 20g (intermittent) |
| Transverse Sensitivity | 0.13 @ 110 Hz |
| Operating Temperature | -20°C to +100°C |
| Protection Class | IP55 |
| Output Signal | Voltage proportional to vibration velocity |
| Material | Aluminum alloy housing |
| Cable | Shielded industrial cable |
|
Origin |
Germany |
|
Dimension |
24*17*6cm |
|
Weight |
0.55kg |
Working Principle
The PR9268/201-000 operates based on the electrodynamic principle:
The internal coil moves within a magnetic field
Mechanical vibration generates an electromotive force (EMF)
Output voltage is proportional to vibration velocity.
This allows direct and reliable measurement without external excitation.
Practical Advantages
precautions for product use
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Self-Powered Operation (No External Power Supply Required)
No need for an external power supply or a power module
Reduces system complexity and wiring costs
More reliable in situations with unstable on-site power supply or when installed over long distances
Direct Velocity Output (Direct Output of Vibration Velocity)
No additional signal conversion (unlike accelerometers, which require integration)
The data is more intuitive and can be directly used for condition assessment
Strong Anti-Interference Capability
The anti-electromagnetic interference capability is superior to that of low-level signal sensors.
The signal is more stable in complex industrial environments.
The data is more reliable,e and there are fewer false alarms.
Wide Frequency Coverage for Machinery Monitoring
Can cover the vibration frequencies of most rotating equipment
Especially sensitive to low-frequency vibrations (unbalance, alignment issues)
Can detect mechanical faults in advance
Long Service Life & Low Maintenance (Longevity and Low Maintenance)
Long service life
Requires almost no maintenance
Reduces long-term operation and maintenance costs
Ideal for Continuous Monitoring Systems (Suitable for Online Monitoring Systems)
Stable output
No power supply required
Strong anti-interference capability
Why choose PR9268/201-00
Improves equipment reliability and uptime
Enables early fault detection (imbalance, misalignment, bearing wear)
Reduces maintenance costs and downtime
Suitable for harsh industrial environments
Easy installation and long service life
Compatible with most vibration monitoring systems
Proven solution in turbomachinery monitoring
Widely used in global industrial applications