Bently Nevada 330903-00-13-10-02-05/CN – 8mm Eddy-Current Proximity Probe | 3300 NSv Platform
Engineering Background
The Bently Nevada 3300 NSv series represents the industry benchmark for non-contacting vibration and position measurement in rotating machinery protection systems. Developed under Baker Hughes’ Bently Nevada division, the 3300 NSv platform is engineered to meet API 670 machinery protection requirements and is deployed globally in turbines, compressors, pumps, and generators across oil & gas, power generation, and petrochemical industries.
Product Positioning
The 330903-00-13-10-02-05/CN is an 8mm eddy-current proximity probe designed for radial vibration, axial position, and differential expansion measurement. It operates as part of the 3300 NSv transducer system, pairing with a compatible extension cable and proximitor/oscillator to deliver a calibrated output signal. This CN-suffix variant is factory-calibrated for use with the standard 3300 NSv signal conditioning electronics.
Complete Technical Specifications
- Part Number: 330903-00-13-10-02-05/CN
- Series / Platform: Bently Nevada 3300 NSv
- Probe Type: Eddy-Current (Non-Contacting) Proximity Probe
- Probe Tip Diameter: 8 mm
- Cable Length: 1.0 m (integral cable, per part number suffix -13)
- Thread Size: M10 × 1.0 (standard 3300 NSv mounting thread)
- Linear Range: 0.25 mm – 2.25 mm (nominal 2.0 mm linear range)
- Scale Factor: 7.87 V/mm (200 mV/mil) nominal
- Frequency Response: DC – 10,000 Hz (–3 dB)
- Operating Temperature: –35 °C to +177 °C (probe body)
- Target Material: AISI 4140 steel (standard calibration target)
- Supply Voltage: –24 VDC (via proximitor)
- Output Voltage Range: –1 VDC to –21 VDC
- Connector Type: Integral coaxial cable with MIL-C-17 compatible termination
- Ingress Protection: IP67 (probe body)
- Approvals / Compliance: API 670, CE, ATEX (consult datasheet for zone classification)
- Weight: Approx. 40 g
- Country of Origin: United States
Proven Application Environments
- Steam & Gas Turbines: Radial shaft vibration monitoring on HP/LP rotor stages
- Centrifugal Compressors: Axial position and differential expansion measurement
- Boiler Feed Pumps: Continuous radial vibration surveillance per API 670
- Electric Motors (>1 MW): Bearing journal orbit analysis
- Gearboxes: Gear mesh frequency and shaft eccentricity monitoring
- Expanders / Turboexpanders: High-speed rotor dynamics in cryogenic service
Engineering Advantages
- API 670 Compliant: Drop-in replacement for existing 3300 NSv installations without recalibration of the monitoring system
- Wide Temperature Range: Rated to +177 °C probe body — suitable for hot-section turbine bearing pedestals
- High Frequency Response: DC–10 kHz bandwidth captures sub-synchronous, synchronous, and high-order harmonic components
- Integral Cable Design: Eliminates field-side connector joints, reducing signal noise and improving MTBF in high-vibration environments
- IP67 Sealing: Resistant to oil mist, steam condensate, and wash-down in turbine enclosures
- Factory Calibration (CN suffix): Pre-matched to 3300 NSv proximitor electronics for plug-and-play commissioning
System Architecture & Signal Flow
The 330903-00-13-10-02-05/CN operates within the standard 3300 NSv transducer chain:
- Proximity Probe (330903-00-13-10-02-05/CN) — Eddy-current sensing element, mounted in bearing housing
- Extension Cable (330130 series) — Coaxial signal cable, field-routed from probe to junction box
- Proximitor / Oscillator (3300 XL 8mm, e.g. 330180-91-00) — Signal conditioning, provides –24 VDC excitation and outputs calibrated voltage signal
- Monitor (3500/40M or equivalent) — Receives 0–20 mA or voltage signal, performs alarm/trip logic per API 670
Note: All three components (probe + extension cable + proximitor) must be ordered and calibrated as a matched system for API 670 compliance.
Sourcing & Quality Verification
- Source: Konmask.com sources 330903-00-13-10-02-05/CN from authorized distribution channels and verified surplus inventories with full traceability documentation.
- Inspection: Each unit undergoes visual inspection, connector integrity check, and coaxial cable continuity verification prior to shipment.
- Documentation Available: Certificate of Conformance (CoC), original manufacturer datasheet, and packing list provided on request.
- Warranty: 90-day functional warranty against manufacturing defects. Extended warranty available — contact sales.
Procurement Process
- Confirm part number 330903-00-13-10-02-05/CN matches your existing 3300 NSv system configuration (probe + extension cable + proximitor series).
- Submit RFQ or place order directly via Konmask.com product page.
- Receive order confirmation with lead time and shipping details within 1 business day.
- Shipment via DHL / FedEx International Priority with full tracking; export documentation (commercial invoice, packing list, CoC) included.
- Technical support available pre- and post-sale via email or phone.
Technical FAQ
Q: Is the 330903-00-13-10-02-05/CN compatible with the older 3300 XL 8mm proximitor?
A: Yes. The 3300 NSv probe series is backward-compatible with 3300 XL 8mm proximitors when used with the correct extension cable. Verify the proximitor part number suffix for calibration matching.
Q: Can this probe be used with a non-Bently Nevada monitor?
A: The probe outputs a standard eddy-current voltage signal (–1 to –21 VDC). It can interface with third-party monitors that accept this signal range, but API 670 compliance requires the full matched Bently Nevada transducer system.
Q: What is the maximum shaft speed this probe can monitor?
A: The 10 kHz frequency response supports shaft speeds up to approximately 600,000 RPM for 1× vibration detection, well beyond typical industrial turbomachinery operating ranges.
Q: Do you offer the matching extension cable and proximitor?
A: Yes. Konmask.com stocks compatible 330130-series extension cables and 330180-series proximitors. Contact us with your system configuration for a complete matched set quotation.
Q: What is the lead time for in-stock units?
A: In-stock units ship within 1–3 business days. For urgent requirements, contact support@konmask.com for expedited processing.
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