Bently Nevada 330905-00-07-10-01-00 – 8mm Eddy Current Proximity Probe | 3300 XL Series Platform
Engineering Background: The Bently Nevada 3300 XL proximity probe system is the global benchmark for continuous shaft vibration and position monitoring in rotating machinery. Deployed across power generation, oil & gas, petrochemical, and heavy industrial sectors, this platform is specified in API 670 machinery protection standards and trusted by OEMs and end-users worldwide.
Product Positioning: The 330905-00-07-10-01-00 is an 8mm eddy current proximity probe designed for direct integration with Bently Nevada 3300 XL proximitor/seismic monitors. It delivers non-contact, continuous measurement of radial shaft vibration, axial position, and differential expansion — critical parameters for turbine, compressor, and pump protection systems.
Complete Technical Specifications
| Part Number | 330905-00-07-10-01-00 |
| Brand / OEM | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 XL Proximity Transducer System |
| Probe Type | Eddy Current (Non-contact) |
| Probe Tip Diameter | 8 mm |
| Cable Length | 1.0 m (integral cable) |
| Extension Cable | Requires 330130 series (sold separately) |
| Proximitor / Driver | Compatible with 3300 XL 8mm Proximitor (330180 series) |
| Linear Range | 0.25 mm – 2.25 mm (10 mil – 90 mil) |
| 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 (–31°F to +350°F) |
| Target Material | AISI 4140 steel (standard); consult factory for other alloys |
| Connector | Integral coaxial, armored cable |
| Housing Material | Stainless steel body, PEEK tip |
| Ingress Protection | IP67 (probe body) |
| Approvals | CE, ATEX / IECEx (consult datasheet for zone ratings) |
| Weight | ~20 g |
| Country of Origin | USA |
Proven Application Environments
- Steam & Gas Turbines – Radial shaft vibration and thrust position monitoring per API 670
- Centrifugal Compressors – Continuous rotor dynamic surveillance in high-speed trains
- Pumps & Motors – Bearing journal orbit analysis and eccentricity measurement
- Gearboxes – Gear mesh frequency and shaft runout detection
- Expanders / Turbines (Petrochemical) – High-temperature, high-pressure environments up to 177°C
- Power Generation (Nuclear / Fossil) – Long-term continuous duty in safety-critical loops
Engineering Advantages
- Non-contact measurement — zero mechanical wear, infinite service life under normal conditions
- DC response — captures both static position (gap) and dynamic vibration in a single channel
- High bandwidth (DC–10 kHz) — resolves sub-synchronous, synchronous, and super-synchronous vibration components
- API 670 compliant system — drop-in replacement for existing 3300 XL installations without recalibration
- Armored integral cable — resists oil, coolant, and mechanical abrasion in harsh plant environments
- PEEK tip material — chemically inert, withstands aggressive process fluids
System Architecture & Signal Flow
The 330905-00-07-10-01-00 operates as part of a three-component eddy current system:
- Probe (330905-00-07-10-01-00) — generates oscillating electromagnetic field; senses gap to conductive target
- Extension Cable (330130 series) — transmits RF signal from probe to proximitor; total system cable length must match proximitor calibration
- Proximitor / Driver (330180 series) — conditions signal, outputs –24 VDC bias with superimposed AC vibration voltage; feeds monitor or DCS input card
Output signal: –24 VDC (at gap center) ± AC component proportional to vibration amplitude. Standard monitor input impedance: ≥10 kΩ.
Sourcing & Quality Verification
- Units sourced from authorized distributors and verified OEM surplus channels
- Each unit inspected for physical integrity, connector condition, and cable continuity prior to shipment
- Original manufacturer labeling and part number markings preserved and verified
- Traceability documentation available upon request for regulated industries
- Konmask.com maintains a zero-counterfeit policy — all Bently Nevada parts are cross-referenced against OEM part number databases
Procurement Process
- Confirm compatibility — verify your proximitor model (330180 series) and total cable length requirement
- Request quote — contact [email protected] with quantity and delivery timeline
- Order & payment — secure checkout via Konmask.com; T/T wire transfer available for B2B orders
- Shipping — DHL / FedEx express worldwide; export documentation (CO, packing list, commercial invoice) included
- Incoming inspection — recommended: verify part number label, cable continuity, and gap voltage output before installation
Technical FAQ
Q: Is this probe interchangeable with the 330900 series?
A: The 330905 series uses the same 8mm tip diameter and 3300 XL system architecture as the 330900 series but features an updated connector and cable specification. Confirm proximitor compatibility before substitution.
Q: Can this probe be used with non-Bently Nevada monitors?
A: Yes, provided the monitor accepts a –24 VDC bias eddy current input with 200 mV/mil scale factor. Consult your monitor manufacturer’s input card specifications.
Q: What target material is required?
A: Standard calibration is for AISI 4140 steel. Other ferromagnetic or non-ferromagnetic alloys will shift the scale factor — contact Bently Nevada or Konmask for target material correction factors.
Q: Do you provide calibration certificates?
A: Calibration certificates from the OEM are available for new-in-box units. For surplus units, functional test reports can be provided upon request.
Q: What is the minimum order quantity?
A: Single-unit orders are accepted. Volume pricing available for orders of 5+ units.
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