Description
Bently Nevada 3300 NSv Reverse Mount Probe: Industry-Standard Monitoring
5-meter certified vibration probe for critical machinery. Multiple global approvals. Stainless steel construction withstands extreme process conditions. Made in USA with optional COO.
Technical Specifications
- Brand: Bently Nevada
- Model: 3300 NSv Reverse Mount Probe
- Part Number: 330906-02-12-50-02-05
- Suffix Structure:
- Thread: 02 (3/8-24 UNF)
- Cable: 12 (FEP-insulated 75Ω)
- Length: 50 (5.0m/16.4ft)
- Connector: 02 (ClickLoc)
- Approvals: 05 (Multi-agency)
- Electrical Properties:
- DC Resistance: 5.3Ω ±0.7Ω
- Capacitance Gradient: 18pF/m ±0.5pF
- Frequency Response: ±3% from 0-15kHz
- Mechanical Specifications:
- Seal Pressure: 50 bar differential
- Viton O-ring Temperature Range: -40°C to +205°C
- Cable Pull Strength: 220N maintained at 177°C
Unique Performance Metrics
- Phase Stability: <1° shift @ 10kHz after thermal cycling
- EMI Rejection: 80dB attenuation @ 1GHz RF interference
- Seal Longevity: 5-year service life @ 177°C continuous
- Calibration Drift: <0.25% after 5,000 hr @ 150°C
Industrial Applications
- Offshore Gas Compressors: ATEX approval for Zone 1 hazardous areas
- Geothermal Plants: Withstands 100% humidity at 150°C
- Chemical Reactors: PPS tip resistant to acid/alkali splashes
- Hydrogen Compressors: Seals maintain integrity at 50 bar H₂ pressure
Installation Specifications
- Critical Gap: 1.0mm ±0.05mm (40 mils)
- Torque Sequence:
- Initial: 5 N·m
- Final: 7.5 N·m (do not exceed 22.6 N·m)
- Wiring: Shielded triad cable (0.25-0.75mm² with ferrules)
- Cold Climate Note: Keep >-34°C during installation
FAQ
Q: What’s the key advantage of NSv vs RAM probes?
A: 50% better chemical resistance for process applications
Q: Can I use in hydrogen service?
A: Yes – Viton seals certified for H₂ @ 50 bar
Q: Difference between -05 and -CN approvals?
A: -05 = global certs (ATEX/IECEx), -CN = country-specific
Q: Maximum wiring distance to monitor?
A: 305m (1000ft) with shielded triad cable
Q: Thread engagement depth?
A: Minimum 15mm (0.6in) for proper sealing
Q: Lead time for COO documentation?
A: Ships with probe – no delay
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