The EPRO PR9268/601-000 is a professional electrodynamic sensor designed for reliable vibration monitoring. This robust velocity sensor directly measures the vibration speed of machines like turbines, pumps, and fans. As part of the renowned EPRO measurement ecosystem, it delivers critical data for condition-based maintenance strategies.
Sensing Principle and Electrical Performance
This sensor operates on the electrodynamic principle, where a moving coil within a magnetic field generates a voltage signal. The output voltage is directly proportional to the measured vibration velocity, providing an accurate speed reading. Consequently, the PR9268/601-000 produces a clear, high-fidelity signal ideal for frequency analysis.
The sensor typically offers a standardized sensitivity, such as 20 mV/(mm/s), across a defined frequency range. Its integrated electronics ensure a strong, low-impedance output signal that resists electrical interference over long cable runs.
Mechanical Design and Environmental Ratings
The EPRO PR9268 features a heavy-duty, stainless steel housing that protects its internal components from harsh industrial conditions. Its sealed construction provides a high degree of ingress protection against dust and moisture. The sensor includes a standard threaded base, such as M10 or M12, for secure and permanent mounting on machine casings.
Furthermore, the sensor contains no internal batteries or active energy storage components, ensuring maintenance-free operation. Its design prioritizes long-term stability and repeatability of measurements under varying temperatures and pressures.
Detailed Technical Parameter Summary
The table below outlines the core technical and physical specifications for the EPRO PR9268/601-000.
| Parameter Category | Specification |
|---|---|
| Manufacturer | EPRO (Baker Hughes) |
| Model Number | PR9268/601-000 |
| Product Series | PR 9268 |
| Sensor Type | Electrodynamic Velocity Sensor |
| Measured Quantity | Vibration Velocity (mm/s, in/s) |
| Sensing Principle | Moving Coil / Electrodynamic |
| Sensitivity (Typical) | e.g., 20 mV/(mm/s) ± 5% |
| Frequency Range | e.g., 4.5 Hz to 1000 Hz (±3 dB) |
| Measurement Range | e.g., 0 to 100 mm/s peak |
| Output Signal | Analog Voltage (Proportional to Velocity) |
| Output Impedance | Low, typically < 500 Ohms |
| Power Supply | None Required (Passive Sensor) |
| Mounting Thread | Typically M10 x 1.5 |
| Housing Material | Stainless Steel |
| Connection Type | Integral cable or connector (per variant) |
| Operating Temperature | e.g., -30°C to +120°C |
| Ingress Protection | Typically IP67 |
Details
| Weight | 0.2 kg |
|---|---|
| Dimensions | 150 × 100 × 50 mm |
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