Vibration Monitoring Solution – Bently Nevada 330904-00-18-50-02-00 | 3300 XL NSv Series
Where This Product Is Used
The Bently Nevada 330904-00-18-50-02-00 is a precision eddy-current proximity transducer system engineered for continuous, real-time shaft vibration and position monitoring in rotating machinery. It is deployed across the most demanding industrial environments:
- Steam & Gas Turbines – Radial shaft vibration, thrust position, and differential expansion measurement on power-generation turbines.
- Centrifugal Compressors – Shaft orbit and eccentricity monitoring in petrochemical and LNG compression trains.
- Pumps & Fans – Continuous bearing clearance monitoring to detect rotor instability before failure.
- Gearboxes – Gear mesh frequency analysis and shaft runout detection.
- Marine Propulsion Systems – Shaft alignment verification and vibration trending on vessel drive trains.
- Nuclear & Conventional Power Plants – Safety-critical shaft monitoring integrated with plant DCS/SIS systems.
Technical Specifications
| Part Number | 330904-00-18-50-02-00 |
| Series | 3300 XL NSv (Non-Standard voltage) |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Sensor Type | Eddy-Current Proximity Transducer |
| Cable Length | 18 inches (integral cable) |
| Extension Cable | 50 ft (15.2 m) |
| Driver/Oscillator | 3300 XL NSv compatible driver |
| Output Signal | -18 VDC nominal (NSv scale factor) |
| Frequency Range | DC to 10,000 Hz |
| Operating Temperature | -35°C to +121°C (sensor); -35°C to +66°C (driver) |
| Target Material | Steel (AISI 4140 / 4340 recommended) |
| Ingress Protection | IP67 (sensor head) |
| Approvals | CE, ATEX, IECEx (consult datasheet for zone ratings) |
| Connector | MIL-C-5015 style |
Why Engineers Specify This Model
- NSv Scale Factor Compatibility – Designed specifically for 3300 XL NSv monitors; ensures calibrated output without field re-scaling.
- 18-inch Integral Cable – Short integral cable minimizes signal loss in high-EMI machine environments; ideal for tight bearing housing installations.
- 50 ft Extension Cable – Pre-matched extension eliminates impedance mismatch errors common with field-assembled cables.
- API 670 Compliant – Meets the machinery protection standard required by EPC contractors and end-users in oil & gas.
- Plug-and-Play with 3300 Rack – Direct replacement for existing 3300 XL installations; no monitor reconfiguration required.
- Proven Field Reliability – Bently Nevada 3300 series transducers have >30 years of installed base in critical rotating machinery worldwide.
Complete System Bill of Materials
A fully functional 3300 XL NSv proximity measurement loop typically includes:
- Proximity Probe: 330904-00-18-50-02-00 (this item)
- Extension Cable: included in this part number configuration (50 ft)
- Oscillator/Driver: 3300 XL NSv Driver (e.g., 330180-91-00)
- Monitor Rack: 3300 XL Rack (e.g., 3300/16 or 3300/20 series)
- I/O Module: 3300 XL Keyphasor or Radial Vibration module
- Mounting Hardware: Proximity probe bracket, lock nut, and jam nut (application-specific)
Contact Konmask for complete loop pricing and availability on companion components.
Compliance & Industry Standards
- API 670 – Machinery Protection Systems (5th Edition)
- ISO 10816 / ISO 20816 – Mechanical vibration evaluation of machines
- IEC 61511 – Functional safety for SIS integration
- ATEX Directive 2014/34/EU – Equipment for explosive atmospheres
- IECEx Scheme – International certification for Ex equipment
- CE Marking – European conformity
Quality Assurance & Sourcing
Konmask sources the Bently Nevada 330904-00-18-50-02-00 through verified industrial distribution channels. Every unit undergoes the following before shipment:
- Visual and dimensional inspection against OEM datasheet
- Label and part number verification (no remarked or counterfeit parts)
- Functional continuity check on cable and connector
- Anti-static packaging with humidity indicator card
- Certificate of conformance (CoC) available on request
We do not sell grey-market, refurbished, or end-of-life stock without explicit disclosure. All units are traceable to authorized supply chains.
How to Source This Part
- Add to Cart – Click Buy Now or Add to Cart above for standard lead times.
- Request a Quote – For volume orders (>5 units), OEM project pricing, or expedited delivery, email support@konmask.com.
- Provide Your Application Details – Share your monitor model, cable run distance, and target material so our engineers can confirm compatibility.
- Lead Time – Typically 3–7 business days for in-stock units; 4–8 weeks for factory-order configurations.
- Export & Customs – We handle export documentation (EAR99 / ECCN classification) for international shipments.
Application-Specific FAQ
Q: Can I use this transducer with a 3300/16 monitor?
A: Yes. The 330904-00-18-50-02-00 is fully compatible with the 3300/16 Radial Vibration Monitor when paired with the correct NSv driver. Verify the driver part number matches the NSv scale factor.
Q: What is the gap voltage for this probe on a steel target?
A: Nominal gap is 50 mils (1.27 mm), corresponding to approximately -9.0 VDC on the NSv scale. Refer to the Bently Nevada calibration curve for your specific target material.
Q: Is this probe suitable for ATEX Zone 1 installations?
A: Consult the specific ATEX certificate for this part number. Bently Nevada 3300 XL probes are available in Ex-certified variants; confirm the suffix codes match your hazardous area classification.
Q: Can Konmask supply the complete loop (probe + extension + driver)?
A: Yes. Contact us with your rack model and channel count and we will quote a complete matched set.
Q: What is the difference between the standard 3300 XL and the NSv version?
A: The NSv (Non-Standard voltage) variant uses a different scale factor and driver to accommodate specific monitor input ranges. Mixing standard and NSv components will result in calibration errors and must be avoided.
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