Overview
The Bently Nevada 330500-02-RU Velomitor is a high-performance piezoelectric sensor designed to measure absolute vibration in rotating machinery, bearing housings, casings, and structural components. Its integrated electronics and robust 316L stainless steel construction ensure reliable operation in demanding industrial environments. The sensor provides precise vibration analysis, helping prevent equipment failure and optimize maintenance schedules.
Key Features
- Measures absolute vibration relative to free space for accurate monitoring
- Wide frequency response from 4.5 Hz to 5 kHz
- High sensitivity: 3.94 mV/mm/s (100 mV/in/s ±5%)
- Hermetically sealed 316L stainless steel case for harsh environments
- Shock survivability up to 5000 g peak
- Supports long cable runs up to 305 meters without signal degradation
- EAC Ex hazardous area certified
Technical Specifications
| Feature | Specification |
|---|---|
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s ±5%) |
| Frequency Response | 4.5 Hz – 5 kHz (±3 dB); 6 Hz – 2.5 kHz (±0.9 dB) |
| Velocity Range | 1270 mm/s (50 in/s) peak |
| Transverse Sensitivity | <5% |
| Amplitude Linearity | ±2% up to 152 mm/s (6 in/s) peak |
| Mounted Resonant Frequency | >12 kHz |
| Output Bias Voltage | -12 VDC ±3 VDC |
| Dynamic Output Impedance | <2400 Ω |
| Broadband Noise Floor | 0.004 mm/s rms (nominal) |
| Operating Temperature | -55°C to +121°C (-67°F to +250°F) |
| Shock Survivability | 5000 g peak |
| Humidity | Up to 100% (non-submerged) |
| Weight | 142 g (5.0 oz) |
| Case Material | 316L stainless steel |
| Connector | 2-pin MIL-C-5015, hermetically sealed |
| Mounting Thread | M8 x 1 |
Applications
- Rotating machinery monitoring in industrial plants
- Bearing housings and motor casings for vibration detection
- Structural components requiring absolute vibration measurement
- Hazardous area applications with EAC Ex approval
Ordering Information
- Part Number: 330500-02-RU
- Mounting Thread Adapter Option: 02 (M8 x 1)
- Agency Approval Option: RU (EAC Ex certified)
Details
| Weight | 0.142 kg |
|---|
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