Bently Nevada 330101-00-65-10-11 – 8mm Eddy Current Proximity Probe | 3300 XL 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. Developed by Baker Hughes (Bently Nevada), the 3300 XL series employs non-contact eddy current technology to deliver real-time radial vibration, axial position, and differential expansion data critical to turbomachinery protection and predictive maintenance programs.
Product Positioning
The 330101-00-65-10-11 is an 8mm diameter, 65 cm (25.6 in) armored cable proximity probe designed for direct integration into Bently Nevada 3300 XL monitoring systems. It is the preferred choice for procurement engineers specifying OEM-equivalent replacement sensors in gas turbines, steam turbines, compressors, and large rotating equipment where API 670 compliance is mandatory.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 330101-00-65-10-11 |
| Brand / OEM | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 XL |
| Sensor Type | Eddy Current Proximity Probe |
| Probe Diameter | 8 mm |
| Cable Length | 65 cm (25.6 in) armored integral cable |
| Connector Type | 10-32 UNF coaxial (standard BN) |
| Thread Size | 10-32 UNF |
| Tip Material | PEEK (Polyether ether ketone) |
| Housing Material | Stainless steel |
| Linear Range | 0.25 – 2.54 mm (10 – 100 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 +351 °F) |
| Supply Voltage | –24 VDC (via proximitor/extension cable) |
| Output Voltage Range | –2 VDC to –22 VDC |
| Target Material | AISI 4140 steel (standard); other alloys per calibration |
| Ingress Protection | IP67 (probe body) |
| Compliance Standard | API 670, CE |
| Weight | Approx. 136 g (probe + cable assembly) |
| Compatible Proximitor | 3300 XL NSv, 3300 XL 8mm Proximitor |
Proven Application Environments
- Gas Turbines – Shaft radial vibration and thrust position monitoring per API 670
- Steam Turbines – Differential expansion and eccentricity measurement
- Centrifugal Compressors – Rotor dynamic monitoring in petrochemical and LNG plants
- Pumps & Fans – Continuous bearing journal orbit analysis
- Gearboxes – Gear mesh frequency and shaft position tracking
- Marine Propulsion Systems – Shaft alignment and vibration surveillance
Engineering Advantages
- Non-contact measurement – Zero mechanical wear; suitable for continuous 24/7 operation
- Wide frequency bandwidth – DC to 10 kHz captures both slow-roll and high-frequency vibration events
- High temperature tolerance – Rated to +177 °C for hot-section turbine bearing housings
- OEM form-factor compatibility – Direct drop-in replacement for existing 3300 XL installations; no re-calibration of the monitoring system required when replacing like-for-like
- Armored cable construction – Stainless steel braid protects against mechanical damage, oil, and chemical exposure in harsh plant environments
- API 670 compliant – Meets the international standard for machinery protection systems
System Architecture & Signal Flow
The 330101-00-65-10-11 probe operates as part of a three-component eddy current measurement chain:
- Proximity Probe (330101-00-65-10-11) – Generates a high-frequency electromagnetic field at the probe tip; eddy currents induced in the target shaft modulate the field proportional to gap distance.
- Extension Cable (330130 series) – Transmits the modulated RF signal from the probe to the proximitor; total system cable length must be matched to the proximitor calibration (typically 5 m or 9 m system).
- Proximitor / Signal Conditioner (3300 XL NSv) – Demodulates the RF signal and outputs a DC voltage (–2 V to –22 V) proportional to probe gap; feeds directly into Bently Nevada 3500 or System 1 monitoring racks.
Sourcing & Quality Verification
- All units sourced from authorized distributors or verified OEM surplus channels
- Each probe inspected for connector integrity, cable continuity, and tip condition prior to shipment
- Original manufacturer labeling and part number markings preserved and verified
- Traceability documentation available upon request for regulated industries (nuclear, offshore, aerospace)
- Shelf-life managed under controlled storage conditions (temperature and humidity controlled warehouse)
Procurement Process
- Confirm compatibility – Verify your existing proximitor model and total system cable length before ordering
- Request a quote – Contact support@konmask.com for volume pricing, lead time, and availability confirmation
- Place order – Secure checkout via Konmask.com; payment by T/T, credit card, or PayPal accepted
- Shipping – DHL / FedEx express worldwide; export documentation (CO, packing list, commercial invoice) included
- After-sales support – Technical assistance available for installation verification and system commissioning
Technical FAQ
Q: Is the 330101-00-65-10-11 compatible with the Bently Nevada 3500 monitoring rack?
A: Yes. When paired with a 3300 XL NSv proximitor and appropriate extension cable, the output signal is fully compatible with 3500 series monitor cards.
Q: Can this probe be used with non-steel target materials?
A: The standard calibration is for AISI 4140 steel. For titanium, aluminum, or other alloys, a material-specific calibration curve must be applied. Contact us for calibration data sheets.
Q: What is the total system cable length for this probe?
A: The integral cable is 65 cm. Total system length (probe + extension cable) must match the proximitor calibration — typically 5 m or 9 m. Select the correct 330130-XX extension cable accordingly.
Q: Do you provide a certificate of conformance?
A: Yes, a certificate of conformance and inspection report are available upon request at no additional charge.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. For out-of-stock inquiries, typical lead time is 2–4 weeks. Contact us for real-time availability.
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