Bently Nevada 330902-00-90-05-02-00 – Eddy Current Proximity Probe | 3300 XL Series Platform
Engineering Background
The Bently Nevada 3300 XL Series represents the industry benchmark for non-contact shaft vibration and position measurement in rotating machinery. Developed by Baker Hughes (Bently Nevada), these eddy current proximity probes are engineered to deliver sub-micron resolution in the harshest industrial environments — from steam turbines and compressors to pumps and gearboxes operating under API 670 machinery protection standards.
Product Positioning
The 330902-00-90-05-02-00 is a 5 mm tip diameter, 90 cm (900 mm) armored extension cable proximity probe designed for direct integration with Bently Nevada 3300 XL proximitor/seismic transducer systems. It is the preferred choice for OEM machinery builders and plant maintenance engineers requiring certified, drop-in replacement sensors with full system compatibility.
Complete Technical Specifications
- Part Number / SKU: 330902-00-90-05-02-00
- Series / Platform: Bently Nevada 3300 XL
- Sensor Type: Eddy Current Proximity Probe (Non-contact)
- Tip Diameter: 5 mm
- Cable Length: 900 mm (90 cm) armored extension cable
- Connector Type: 02 series (per part number suffix)
- Measurement Range: 0 – 2.54 mm (0 – 100 mil) linear range
- Sensitivity: 7.87 V/mm (200 mV/mil) nominal
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35°C to +177°C (probe body)
- Supply Voltage: –24 VDC (via proximitor)
- Output Signal: –2 VDC to –22 VDC (proportional to gap)
- Target Material: AISI 4140 steel (standard); compatible with most ferrous alloys
- Ingress Protection: IP67 (probe body)
- Compliance: API 670, CE, RoHS
- Weight: Approx. 20 g (probe assembly)
- Country of Origin: United States
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal compressor rotor position and vibration measurement
- Pump and motor bearing journal orbit analysis
- Gearbox and expander differential expansion measurement
- API 670-compliant machinery protection systems
- OEM turbomachinery skid integration (new build and retrofit)
- Petrochemical, LNG, power generation, and offshore platforms
Engineering Advantages
- Non-contact measurement: Zero mechanical wear; ideal for continuous 24/7 monitoring
- High bandwidth: DC to 10 kHz response captures both slow-roll and high-frequency vibration events
- Armored cable construction: Stainless steel braid protects against mechanical damage, oil, and chemical exposure
- Direct system compatibility: Plug-and-play replacement for existing 3300 XL proximitor installations — no recalibration required when replacing like-for-like
- Wide temperature range: Qualified for both cryogenic and high-temperature process environments
- Traceable calibration: Factory-calibrated with NIST-traceable standards; calibration certificate available on request
System Architecture & Signal Flow
The 330902-00-90-05-02-00 probe operates as part of a three-component eddy current measurement chain:
- Probe (330902-00-90-05-02-00): Generates a high-frequency electromagnetic field at the tip; detects changes in eddy current loss as the conductive target moves.
- Extension Cable: Integrated 900 mm armored cable transmits the oscillator signal between probe and proximitor with controlled impedance.
- Proximitor / Seismic Transducer (e.g., 3300 XL 8 mm): Demodulates the probe signal and outputs a DC voltage proportional to the probe-to-target gap. Connects to Bently Nevada 3500 or System 1 monitoring racks.
Note: The complete measurement system requires a compatible Bently Nevada proximitor. Contact us for matched system configurations.
Sourcing & Quality Verification
- Source: Authorized surplus and OEM-certified supply channels; all units inspected prior to shipment
- Condition: New surplus or factory-refurbished (condition specified at order confirmation)
- Traceability: Original Bently Nevada / Baker Hughes part number verified; documentation available
- Testing: Functional output voltage and sensitivity verified against factory specification before dispatch
- Warranty: 90-day operational warranty covering manufacturing defects and specification conformance
- Counterfeit Prevention: All units sourced through vetted supply chains; certificates of conformance available on request
Procurement Process
- Confirm compatibility: Verify your proximitor model and cable length requirement match this part number suffix (-90 = 900 mm cable, -05 = 5 mm tip, -02 = connector type 02).
- Request a quote: Contact us via email or phone for volume pricing, lead time, and condition confirmation.
- Order & documentation: Purchase order accepted; commercial invoice, packing list, and certificate of conformance issued with shipment.
- Shipping: EXW Xiamen, China. DHL / FedEx express available. Typical lead time: 3–7 business days.
- After-sales support: Technical support available for installation verification and system integration questions.
Technical FAQ
Q: Is this probe compatible with the Bently Nevada 3500 monitoring rack?
A: Yes. When paired with a compatible 3300 XL proximitor, the output signal is fully compatible with Bently Nevada 3500 series I/O modules.
Q: Can this probe be used with non-Bently Nevada monitors?
A: The probe and proximitor system outputs a standard –2 to –22 VDC signal, which is compatible with most third-party vibration monitors that accept this input range. Consult your monitor manufacturer for input specifications.
Q: What is the difference between the -05 and -08 tip diameter variants?
A: The -05 suffix denotes a 5 mm tip diameter, optimized for smaller shaft diameters and tighter installation clearances. The -08 variant (8 mm tip) offers a larger linear range and is preferred for larger shaft applications. Ensure your proximitor is matched to the correct probe tip size.
Q: Do you provide calibration certificates?
A: Yes. Factory calibration data and certificates of conformance are available upon request at time of order.
Q: What is the lead time for this part?
A: In-stock units typically ship within 1–3 business days. Out-of-stock items have a lead time of 7–21 business days depending on sourcing. Contact us to confirm current availability.
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