Bently Nevada 330905-00-17-05-02-00 — Eddy-Current Proximity Probe | 3300 NSv Platform
Engineering Background
The Bently Nevada 3300 NSv series represents the industry benchmark for non-contact shaft vibration and position measurement in rotating machinery. Deployed across gas turbines, steam turbines, compressors, and pumps in power generation, oil & gas, and petrochemical facilities worldwide, the 3300 NSv system delivers the measurement accuracy and long-term stability that critical machinery protection demands.
Product Positioning
Part number 330905-00-17-05-02-00 is a complete proximity probe assembly configured for 5 mm tip diameter, 5-metre (17 ft) integral cable, standard sensitivity output, and a 2-metre (02) extension cable interface. It is the preferred selection for turbomachinery OEM installations and retrofit projects requiring API 670-compliant radial vibration monitoring.
Complete Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 330905-00-17-05-02-00 |
| Series / Platform | Bently Nevada 3300 NSv |
| Probe Tip Diameter | 5 mm (0.197 in) |
| Integral Cable Length | 5 m (17 ft) |
| Extension Cable Length | 2 m (standard) |
| Output Sensitivity | 200 mV/mil (7.87 V/mm) nominal |
| Linear Range | 0.25 – 2.25 mm (10 – 90 mil) |
| Frequency Response | DC to 10,000 Hz (–3 dB) |
| Operating Temperature | –35 °C to +177 °C (probe tip) |
| Supply Voltage | –24 VDC (nominal, via driver/conditioner) |
| Target Material | AISI 4140 steel (standard); other alloys with calibration |
| Connector Type | Coaxial, gold-plated |
| Housing Material | 316 stainless steel |
| Ingress Protection | IP67 |
| Compliance | API 670, CE, RoHS |
| Compatible Driver | Bently Nevada 3300 XL 8mm / 11mm driver series |
| Weight | Approx. 80 g |
Proven Application Environments
- Gas & Steam Turbines — Radial shaft vibration monitoring per API 670 machinery protection requirements
- Centrifugal Compressors — Continuous rotor position and dynamic runout measurement
- Pumps & Fans — Bearing journal orbit analysis and imbalance detection
- Gearboxes — Gear mesh frequency monitoring and shaft eccentricity tracking
- Hydro Turbines — Slow-speed shaft displacement measurement in wet environments
- Test Rigs & R&D Facilities — High-bandwidth dynamic displacement acquisition
Engineering Advantages
- Non-contact measurement — Zero mechanical wear; suitable for continuous 24/7 operation in critical machinery
- High bandwidth (DC–10 kHz) — Captures both static position (thrust, preload) and high-frequency dynamic events
- Integral cable design — Eliminates field-assembled connector joints; reduces signal noise and maintenance points
- 316 SS housing + IP67 — Withstands lube oil, steam, and process gas environments without degradation
- API 670 compliant — Drop-in compatible with existing 3300 NSv protection system architectures
- Factory-calibrated — Each probe ships with individual calibration data traceable to NIST standards
System Architecture & Signal Flow
The 330905-00-17-05-02-00 probe operates as part of a three-component eddy-current measurement chain:
- Proximity Probe (this item) — Generates an oscillating electromagnetic field at the tip; gap-dependent impedance change modulates the carrier signal.
- Extension Cable — Transmits the modulated RF signal from the probe to the driver/oscillator with controlled impedance (integral 2 m extension included in this part number).
- Driver / Oscillator-Demodulator — Converts the modulated signal to a DC-proportional voltage output (–24 VDC supply; 200 mV/mil output to monitoring system).
The output voltage is directly proportional to the air gap between the probe tip and the conductive target surface, enabling real-time shaft position and vibration amplitude measurement.
Sourcing & Quality Verification
- All units sourced through authorised industrial distribution channels or directly from OEM-certified inventory
- Each probe inspected for physical integrity, connector condition, and cable continuity prior to dispatch
- Original manufacturer labelling, date codes, and serialisation preserved — no remarking or repackaging
- Certificate of conformance (CoC) available upon request for regulated industries
- Traceability documentation provided for nuclear, aerospace, and defence procurement requirements
Procurement Process
- Confirm compatibility — Verify your existing driver part number and cable system configuration against the 330905 series datasheet
- Request a quote — Contact [email protected] for volume pricing, lead time, and CoC availability
- Place order — Standard payment terms; proforma invoice available for first-time buyers
- Shipping — EXW Xiamen; DHL / FedEx express worldwide; export documentation included
- After-sales support — Technical assistance available for installation, commissioning, and system integration queries
Technical FAQ
Q: Is this probe compatible with the Bently Nevada 3300 XL driver?
A: Yes. The 330905 series is fully compatible with the 3300 XL 8 mm and 11 mm driver/oscillator-demodulators when used with the correct extension cable.
Q: Can this probe measure non-ferrous targets?
A: The standard calibration is for AISI 4140 steel. Aluminium, titanium, and other alloys require a target-specific calibration curve — contact us for custom calibration options.
Q: What is the maximum shaft speed this probe can monitor?
A: The DC–10 kHz frequency response supports shaft speeds well beyond 100,000 RPM for fundamental vibration measurement; consult the application datasheet for harmonic analysis requirements.
Q: Do you supply the matching extension cable and driver separately?
A: Yes. Bently Nevada 3300 series extension cables and driver modules are available — contact us with your full system part numbers for a complete BOM quotation.
Q: Is a Certificate of Conformance included?
A: CoC is available upon request at no additional charge. Please specify at time of order.
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