Bently Nevada 330171-00-35-10-02-05 – 8mm Eddy Current Proximity Probe | 3300 XL Series Platform
Engineering Background
The Bently Nevada 3300 XL Series represents the industry benchmark for continuous shaft vibration and position monitoring in rotating machinery. Deployed across power generation, petrochemical, and heavy industrial sectors worldwide, the 3300 XL system delivers API 670-compliant measurement with sub-micron resolution. The 330171-00-35-10-02-05 is the precision 8mm eddy current proximity probe engineered specifically for this platform — providing non-contact, high-frequency dynamic response for radial vibration, axial position, and differential expansion measurement.
Product Positioning
Designed for procurement engineers and reliability teams sourcing OEM-equivalent replacement probes for Bently Nevada 3300 XL monitor systems. This probe integrates directly with 3300 XL extension cables and proximitor/oscillator drivers without recalibration, maintaining system certification integrity. Konmask.com supplies verified, traceable units with full documentation support.
Complete Technical Specifications
- Part Number: 330171-00-35-10-02-05
- Series / Platform: Bently Nevada 3300 XL 8mm Proximity System
- Sensing Technology: Eddy Current (Non-contact)
- Probe Tip Diameter: 8 mm
- Cable Length: 5.0 m (integral armored cable)
- Linear Range: 0.25 mm – 2.54 mm (10 mil – 100 mil)
- Scale Factor: 7.87 V/mm (200 mV/mil) nominal
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35°C to +177°C (–31°F to +350°F)
- Supply Voltage: –24 VDC (via proximitor)
- Output Voltage Range: –1 VDC to –21 VDC
- Target Material: AISI 4140 steel (standard); other alloys require scale factor correction
- Connector: Integral coaxial, mates with 3300 XL extension cable
- Housing Material: Stainless steel body, PEEK tip
- Ingress Protection: IP67
- Weight: Approx. 230 g
- Compliance: API 670, CE, RoHS
- Compatible Proximitor: 3300 XL 8mm Proximitor/Oscillator (e.g., 330180 series)
Proven Application Environments
- Steam and gas turbine radial shaft vibration monitoring
- Centrifugal compressor axial position and thrust measurement
- Boiler feed pump and large motor bearing displacement
- Gearbox and expander differential expansion monitoring
- API 670 machinery protection systems in oil & gas, power, and petrochemical plants
- Retrofit and upgrade of legacy Bently Nevada 7200 series installations
Engineering Advantages
- Non-contact measurement: Zero mechanical wear; suitable for continuous 24/7 operation
- High bandwidth: DC–10 kHz response captures sub-synchronous, synchronous, and high-frequency vibration events
- OEM system compatibility: Direct plug-in replacement; no recalibration of monitor cards required
- Robust construction: Armored integral cable withstands high-vibration, high-temperature machine environments
- API 670 compliant: Meets international machinery protection standard for critical rotating equipment
- Wide temperature range: Qualified to –35°C to +177°C for hot-section and cryogenic applications
System Architecture & Signal Flow
The 330171-00-35-10-02-05 probe operates as the sensing element in a three-component eddy current measurement chain:
- Proximity Probe (330171-00-35-10-02-05): Generates high-frequency electromagnetic field; detects shaft surface displacement via eddy current effect
- Extension Cable (330130 series): Transmits RF signal from probe tip to proximitor; total system cable length must match proximitor calibration
- Proximitor/Oscillator (330180 series): Demodulates RF signal; outputs DC voltage proportional to gap distance for monitor card input
Note: Total probe + extension cable length must equal the proximitor’s rated system length. Verify before ordering.
Sourcing & Quality Verification
- Units sourced from authorized distribution channels and verified OEM surplus inventory
- Each unit inspected for connector integrity, cable continuity, and housing condition prior to shipment
- Calibration certificates and factory documentation available upon request
- Traceability records maintained for critical plant and nuclear-adjacent applications
- Konmask.com maintains a no-counterfeit policy — all parts are subject to incoming inspection
Procurement Process
- Confirm part number 330171-00-35-10-02-05 against your BOM or existing probe label
- Verify total system cable length (probe + extension) matches your proximitor model
- Submit PO or inquiry to [email protected] with quantity and required delivery date
- Receive proforma invoice with lead time confirmation within 24 business hours
- Shipment via DHL / FedEx with tracking; export documentation included for international orders
Technical FAQ
Q: Is this probe compatible with the Bently Nevada 3500 system?
A: No. The 3500 series uses a different proximitor architecture. The 330171 series is designed exclusively for the 3300 XL platform. For 3500 compatibility, refer to the 330730 or 330780 probe families.
Q: Can I use this probe with a non-steel target material?
A: Yes, but the scale factor will deviate from the nominal 7.87 V/mm. A material correction factor must be applied. Contact our engineering team for target-specific calibration guidance.
Q: What is the shelf life of an unused proximity probe?
A: Bently Nevada proximity probes have no defined shelf life when stored in original packaging at controlled temperature and humidity. Inspect connector and cable insulation before installation.
Q: Do you provide ATEX/IECEx certified units?
A: Certified variants are available. Please specify hazardous area classification (Zone, Gas Group, Temperature Class) when inquiring.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. For larger quantities or certified variants, lead time is 5–15 business days. Contact us for current stock status.
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