Bently Nevada 330907-05-30-10-10-02-05 – High-Precision Reverse Mount Proximity Probe | 3300 NSv Platform
Engineering Background
The Bently Nevada 3300 NSv series represents the industry benchmark for non-contacting eddy-current proximity measurement in rotating machinery protection systems. Designed to meet API 670 requirements, the 3300 NSv platform is widely deployed in turbines, compressors, pumps, and gearboxes across oil & gas, power generation, and petrochemical industries.
Product Positioning
The 330907-05-30-10-10-02-05 is a reverse-mount configuration proximity probe engineered for installations where standard front-mount access is mechanically constrained. Its compact reverse-entry design enables direct integration into tight bearing housings without compromising signal integrity or measurement accuracy. This probe is a direct replacement and upgrade path for legacy 3300 XL installations.
Complete Technical Specifications
| Part Number | 330907-05-30-10-10-02-05 |
| Brand / OEM | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 NSv |
| Probe Type | Eddy-Current Non-Contacting Proximity Probe |
| Mount Configuration | Reverse Mount |
| Probe Length | 5 in (127 mm) |
| Cable Length | 30 in (762 mm) integral cable |
| Thread Size | 10-32 UNF |
| Tip Diameter | 10 mm |
| Sensitivity | 200 mV/mil (7.87 V/mm) nominal |
| Linear Range | 0–80 mil (0–2.03 mm) |
| Frequency Response | DC to 10,000 Hz |
| Operating Temperature | -35°C to +177°C (-31°F to +351°F) |
| Target Material | AISI 4140 steel (standard); other alloys per calibration |
| Connector Type | 02 – Standard BNC-compatible |
| Armor / Jacket | 05 – Stainless steel armor, PTFE jacket |
| Compliance | API 670, CE, RoHS |
| Weight | 440 g (approx.) |
| Country of Origin | United States |
Proven Application Environments
- Steam and gas turbine radial/axial vibration monitoring
- Centrifugal and reciprocating compressor shaft displacement
- Boiler feed pump and cooling water pump bearing protection
- Gearbox and motor shaft eccentricity measurement
- Reverse-mount bearing housings with restricted front access
- Offshore platform and subsea topside rotating equipment
- Power generation (nuclear, thermal, combined-cycle) turbine trains
Engineering Advantages
- Reverse-mount geometry eliminates the need for housing modification in retrofit projects, reducing downtime and engineering cost.
- NSv signal conditioning compatibility ensures plug-and-play integration with 3300 NSv monitor cards without recalibration.
- PTFE-jacketed stainless armor cable provides superior chemical resistance and mechanical protection in harsh process environments.
- Extended temperature range (-35°C to +177°C) supports high-temperature bearing housing installations near steam paths.
- API 670 compliant — meets machinery protection system requirements for critical and essential machinery classifications.
- DC-coupled output enables both static (position) and dynamic (vibration) measurement from a single probe.
System Architecture & Signal Flow
The 330907-05-30-10-10-02-05 probe operates as part of the Bently Nevada 3300 NSv measurement chain:
- Probe (330907 series) — Generates eddy-current field; outputs raw oscillator signal via integral cable.
- Extension Cable (330130 series) — Transmits signal from probe to proximitor; total system cable length must match proximitor calibration (typically 5m or 9m).
- Proximitor / Signal Conditioner (330180 NSv) — Converts oscillator signal to DC voltage proportional to gap distance (−24 VDC powered).
- Monitor Card (3300/16 or 3500/40M) — Processes conditioned signal for alarm, trip, and Bently Nevada System 1 data acquisition.
Note: Verify total cable length (probe integral + extension) matches the proximitor’s calibrated range before installation.
Sourcing & Quality Verification
- Stock sourced from authorized distributors and verified OEM supply chains.
- Each unit inspected for physical integrity, connector condition, and part number label authenticity prior to shipment.
- Original factory packaging preserved where available; anti-static and moisture-barrier packaging applied for all shipments.
- Certificate of conformance (CoC) and test reports available upon request for critical machinery applications.
- Traceability documentation (lot number, date code) provided for nuclear and safety-instrumented system (SIS) applications.
Procurement Process
- Submit RFQ — Email support@konmask.com with part number, quantity, and required delivery date.
- Receive Quote — Pricing and lead time confirmed within 1 business day for standard stock items.
- Order Confirmation — Purchase order accepted via email; proforma invoice issued for prepayment or net terms.
- Shipment — DHL / FedEx / UPS express available; EXW Xiamen or DAP destination terms negotiable.
- Documentation — Commercial invoice, packing list, CoC, and HS code declaration included with every shipment.
Technical FAQ
Q: Is the 330907-05-30-10-10-02-05 compatible with the older 3300 XL monitor?
A: The NSv probe is electrically compatible with 3300 XL monitors when used with the correct NSv proximitor. Verify monitor firmware version supports NSv signal conditioning before substitution.
Q: What extension cable should be paired with this probe?
A: Use Bently Nevada 330130-series extension cables. Total system cable length (probe integral 30 in + extension) must match the proximitor calibration — typically 5 m (197 in) or 9 m (354 in) total.
Q: Can this probe measure axial position as well as radial vibration?
A: Yes. The DC-coupled output supports both static gap (axial position / thrust) and dynamic (radial vibration) measurement. Monitor card channel configuration determines the measurement mode.
Q: What is the lead time for this part?
A: In-stock units ship within 3–5 business days. For out-of-stock items, typical lead time is 4–8 weeks depending on OEM availability. Contact us for real-time stock status.
Q: Do you provide ATEX/IECEx certified versions?
A: ATEX/IECEx variants are available under separate part numbers. Please specify hazardous area classification (Zone 1/2, gas group, temperature class) when requesting a quote.
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