Product Description
The Bently Nevada 330525-05 is a rugged piezo-velocity sensor for extreme environments. Its 316L stainless steel case and IP-66/NEMA 4X rating allow direct mounting without a housing. This sensor delivers reliable vibration data for critical turbomachinery protection.
Ideal for oil & gas, power generation, and heavy industry. The Velomitor XA series offers extended temperature range and high shock survivability. It is a drop-in upgrade for standard 330500 sensors.
Technical Specifications
| Brand | Bently Nevada |
| Model | 330525-05 (Velomitor XA) |
| Sensitivity | 3.94 mV/mm/s (100 mV/in/s) ±5% |
| Frequency Response | 4.5 to 2000 Hz (±3.0 dB) / 6.0 to 1000 Hz (±0.9 dB) |
| Velocity Range | 1270 mm/s (50 in/s) peak |
| Amplitude Linearity | ±2% to 152 mm/s (6 in/s) peak |
| Resolution (Noise Floor) | < 0.004 mm/s (160 µin/s) rms |
| Operating Temperature | -55 °C to +121 °C (-67 °F to +250 °F) |
| Environmental Tolerance | 100% non-submerged, hermetic seal |
| Magnetic Immunity | < 51 min/s/gauss (50 gauss, 50-60 Hz) |
| Shock Survivability | 5000 g peak |
| Case Material | 316L stainless steel |
| Connector | 2-pin Mil-C-26482, hermetic |
| Mounting Torque | 45 N-m (33 ft-lb) max |
| Weight | 156 g (5.5 oz) |
| Max Cable Length | 305 m (1000 ft) with BN 02173007 |
Installation & Setup
- Mounting: Torque to 45 N·m max. Use a flat, clean surface.
- Polarity: Pin A positive when case moves toward connector.
- Cable Bend: Minimum 1.5-inch bend radius.
- Grounding: Case is isolated; avoid ground loops.
- Power: -22 to -30 VDC, 2.5 to 6.0 mA bias.
- Output: -12 ±3 VDC bias, dynamic impedance < 2400 Ω.
Diagnostic Capabilities
- Measures absolute velocity (mm/s or in/s) for machinery health.
- Broadband noise floor ensures clear signal in noisy plants.
- Transverse sensitivity < 5% for accurate readings.
- Resonant frequency > 12 kHz avoids false alarms.
Compatibility & Approvals
- Hazardous Areas: Ex ia IIC T4, AEx ia IIC T4, Class I Div 1 & 2, Groups A-G.
- Certifications: SIRA/CENELEC, IP-66, NEMA 4X.
- Works with Bently Nevada 3300, 3500 monitoring systems.
- Cable assembly 02173007 recommended for full performance.
Typical Applications
- Steam, gas, and wind turbine monitoring.
- Compressors, pumps, and fans in hazardous zones.
- Paper mills, mining, and offshore platforms.
- Any rotating equipment requiring rugged velocity sensing.
Packing List & Warranty
- 1 x 330525-05 Velomitor XA Sensor.
- Factory packing with original documentation.
- 12-month factory warranty from Bently Nevada.
- New & original, never used.
Why Buy From Oiltech Controls?
- Over 15 years in industrial automation spares.
- Global express shipping via FedEx, UPS, DHL.
- Tested surplus/refurbished options available.
- Full 12-month warranty on every item.
- Technical verification before shipment.
- Support for obsolete and legacy systems.
Shipping: FedEx, UPS, DHL express worldwide. Same-day dispatch for in-stock items.
Support: info@oiltechcontrols.com | +86 158 8020 0923
Frequently Asked Questions
Q: Is this sensor a direct replacement for 330500?
A: Yes, with improved ruggedness and environmental sealing.
Q: What is the maximum cable length?
A: Up to 305 m with Bently Nevada cable 02173007.
Q: Can it operate in high humidity?
A: Yes, 100% non-submerged and hermetically sealed.
Q: Does it require external signal conditioning?
A: No, direct connection to Bently Nevada monitors.
Original Source: https://www.oiltechcontrols.com/
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