Turbine & Rotating Machinery Vibration Monitoring Solution — Bently Nevada 330905-00-04-10-02-CN | 3300 NSv Series
Where This Product Is Used
The Bently Nevada 330905-00-04-10-02-CN is a high-precision eddy-current proximity probe engineered for continuous, non-contact measurement of shaft radial vibration, axial position, and differential expansion in critical rotating machinery. Typical deployment environments include:
- Steam & Gas Turbines — real-time shaft orbit and eccentricity monitoring per API 670
- Centrifugal & Axial Compressors — radial vibration surveillance in petrochemical and LNG plants
- Boiler Feed Pumps & Large Fans — early-warning detection of rotor imbalance and bearing wear
- Gearboxes & Expanders — high-speed shaft position tracking in power generation facilities
- Marine Propulsion Systems — vibration monitoring in confined, high-humidity environments
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 330905-00-04-10-02-CN |
| Series | Bently Nevada 3300 NSv |
| Probe Tip Diameter | 5 mm (0.197 in) |
| Cable Length | 9 m (30 ft) integral armored cable |
| Connector | CN-type (Chinese standard) |
| Measurement Range | 0.25 mm – 2.25 mm (linear range) |
| Sensitivity | 7.87 V/mm (200 mV/mil) |
| Frequency Response | DC – 10,000 Hz (–3 dB) |
| Operating Temperature | –35 °C to +177 °C (probe tip) |
| Supply Voltage | –24 VDC (nominal, via driver/extension cable) |
| Target Material | AISI 4140 steel or equivalent (non-magnetic) |
| Ingress Protection | IP67 |
| Weight | Approx. 40 g |
| Compatible Driver | Bently Nevada 3300 XL / NSv driver modules |
Why Engineers Specify This Model
- NSv (Non-Standard voltage) Architecture — operates on standard –24 VDC plant power without a dedicated power supply, reducing panel space and BOM cost.
- 5 mm Tip for Tight Clearances — ideal for small-bore bearing housings where 8 mm probes cannot be installed without machining.
- 9 m Integral Cable — eliminates an extension cable junction, reducing signal noise and potential failure points in high-vibration environments.
- CN Connector Compatibility — plug-and-play replacement for existing 3300 NSv installations using Chinese-standard connectors; no re-wiring required.
- API 670 Compliant — meets the machinery protection standard mandated by most EPC contractors and plant operators globally.
- Proven MTBF > 100,000 hours — field-validated reliability in continuous 24/7 operation across refinery and power plant environments.
Complete System Bill of Materials
A fully functional 3300 NSv proximity measurement loop requires the following components:
- Proximity Probe: 330905-00-04-10-02-CN (this item)
- Driver / Proximitor: Bently Nevada 330180-X1-CN or 3300 XL 8mm driver (matched to probe)
- Extension Cable: Not required — 9 m integral cable reaches most driver panel locations directly
- Monitor Module: Bently Nevada 3500/42M or 3500/40M radial vibration monitor
- Rack: Bently Nevada 3500 Rack with power supply (3500/15 or 3500/05)
- Mounting Hardware: Probe holder, lock nut, and jam nut (customer-supplied per machine drawing)
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition)
- IEC 60068-2 — Environmental testing (vibration, shock, temperature)
- ATEX / IECEx — Intrinsically safe versions available on request
- CE Marking — Compliant with EU EMC and Low Voltage Directives
- RoHS — Restriction of Hazardous Substances compliant
Quality Assurance & Sourcing
Every unit supplied by Konmask.com undergoes a multi-point inspection protocol before shipment:
- Visual inspection of probe tip, cable jacket, and connector for physical damage
- Continuity and insulation resistance test on integral cable
- Sensitivity verification against Bently Nevada factory calibration data
- Serialization and traceability documentation provided upon request
We source exclusively from authorized distributors and verified OEM channels. Counterfeit-free guarantee backed by our supplier qualification process.
How to Source This Part
Ready to order or need a formal quotation for your procurement team?
- Online: Add to cart directly on this page — stock availability shown in real time.
- RFQ / Bulk Orders: Email support@konmask.com with your quantity, required delivery date, and project name.
- Phone / WeChat: +0086 19859288691 — speak directly with an automation parts specialist.
- Lead Time: In-stock units ship within 1–3 business days; ex-stock orders typically 7–15 business days.
- Export Documentation: Commercial invoice, packing list, and CO available for international shipments.
Application-Specific FAQ
Q: Can this probe replace a 330905-00-04-10-02-00 (standard connector) unit?
A: Functionally yes — the sensing element and cable are identical. Only the connector type differs (CN vs. standard BNC/MIL). Verify your driver input connector before ordering.
Q: What target material gives the best linearity?
A: AISI 4140 or 4340 alloy steel provides the flattest response curve. Stainless steel (316L) introduces a scale factor error of approximately 10–15%; a recalibration factor must be applied in the monitor.
Q: Is a 9 m cable too long if my driver is only 3 m away?
A: The integral cable cannot be shortened in the field. Excess cable should be coiled loosely (minimum 150 mm bend radius) and secured away from heat sources. Signal performance is unaffected by cable coiling.
Q: Does this probe work with the Bently Nevada 3500/42M monitor directly?
A: Yes, when paired with the correct 3300 NSv driver module. The driver converts the probe output to a –24 VDC buffered signal compatible with all 3500-series monitors.
Q: What is the warranty on this part?
A: Konmask.com provides a 12-month warranty against manufacturing defects from the date of shipment. Warranty claims require return of the defective unit with original documentation.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
