Bently Nevada 330851-02-000-050-50-00-05 Proximity Transducer System | 3300 XL Series
Engineering Background
The Bently Nevada 3300 XL Series represents the industry benchmark for non-contact eddy current proximity measurement in rotating machinery protection and condition monitoring. Engineered to API 670 standards, this system is the preferred solution for turbomachinery OEMs, EPC contractors, and reliability engineers worldwide.
Product Positioning
The 330851-02-000-050-50-00-05 is a complete proximity transducer system comprising a 5mm probe, 5-metre extension cable, and compatible driver/oscillator. It delivers continuous, high-resolution shaft displacement and vibration data to Bently Nevada 3300 series monitors, enabling real-time machinery protection in critical rotating equipment applications.
Complete Technical Specifications
- Part Number: 330851-02-000-050-50-00-05
- Series / Platform: Bently Nevada 3300 XL
- Sensor Type: Eddy Current Proximity Transducer (Non-Contact)
- Probe Tip Diameter: 5 mm
- Extension Cable Length: 5 m (16.4 ft)
- Total System Cable Length: 5 m standard
- Supply Voltage: -24 VDC (nominal)
- Output Sensitivity: 200 mV/mil (7.87 V/mm)
- Linear Range: 0 to 90 mil (0 to 2.29 mm)
- Frequency Response: 0 to 10,000 Hz
- Operating Temperature: -35°C to +121°C (probe); -35°C to +85°C (driver)
- Target Material: AISI 4140 steel (standard); other materials require calibration factor
- Connector Type: Standard BNC / Bently Nevada proprietary
- Compliance: API 670, CE, RoHS
- Weight: Approx. 210 g (complete system)
- Country of Origin: United States
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal compressor rotor displacement measurement
- Axial thrust position monitoring on multi-stage pumps
- Gearbox and motor shaft eccentricity detection
- Expander-compressor trains in petrochemical plants
- LNG liquefaction and regasification turbomachinery
- Power generation — combined cycle and cogeneration units
- Offshore platform rotating equipment (API 670 mandatory zones)
Engineering Advantages
- Non-contact measurement: Zero mechanical wear; suitable for continuous 24/7 operation
- High bandwidth (0–10 kHz): Captures sub-synchronous, synchronous, and super-synchronous vibration components
- API 670 compliant: Drop-in replacement for existing 3300 XL installations without recalibration
- Wide temperature range: Qualified for high-temperature bearing housings and cold-climate outdoor installations
- Plug-and-play compatibility: Direct interface with Bently Nevada 3300/3500 series monitors and System 1 software
- Robust EMI immunity: Shielded cable construction minimises interference in high-noise industrial environments
System Architecture & Signal Flow
The 330851-02-000-050-50-00-05 operates as a three-component eddy current system:
- Probe (330851 series): Generates a high-frequency electromagnetic field; detects changes in target distance via eddy current effect.
- Extension Cable (02-000-050): 5 m coaxial cable transmits the oscillator signal between probe and driver with minimal signal loss.
- Driver/Oscillator (50-00-05): Conditions the raw probe signal into a calibrated DC voltage output (200 mV/mil) for monitor input.
Output signal feeds directly into Bently Nevada 3300 XL monitor input cards (e.g., 3300/16, 3300/20) or 3500 series rack monitors for alarm, danger, and trip logic processing.
Sourcing & Quality Verification
- All units sourced from authorised distribution channels or verified surplus with full traceability documentation
- Pre-shipment inspection: visual, dimensional, and functional bench test against OEM specifications
- Serialisation and date-code verification performed on every unit
- Certificate of Conformance (CoC) available upon request
- Counterfeit-prevention protocol: cross-referenced against Bently Nevada authorised part database
Procurement Process
- Submit RFQ via [email protected] or WhatsApp +0086 19859288691
- Receive quotation with lead time, CoC availability, and shipping options within 24 hours
- Order confirmation and proforma invoice issued
- Payment: T/T, PayPal, or credit card via Shopify secure checkout
- Dispatch within 1–3 business days; DHL / FedEx express worldwide
- Tracking number and commercial invoice provided for customs clearance
Technical FAQ
Q: Is this a complete system or individual components?
A: This listing covers the complete 3-component proximity transducer system (probe + extension cable + driver) as a matched, calibrated set.
Q: Can it replace an existing 330851 probe on a running machine?
A: Yes. The 330851-02-000-050-50-00-05 is a direct OEM-equivalent replacement. No monitor reconfiguration is required when replacing a like-for-like system.
Q: What target materials are supported?
A: Factory calibration is for AISI 4140 steel. For stainless steel, titanium, or other alloys, a material correction factor must be applied — contact our engineers for guidance.
Q: Is a calibration certificate included?
A: A Certificate of Conformance is included. NIST-traceable calibration certificates can be arranged on request (additional lead time may apply).
Q: What is the warranty?
A: 12-month warranty against manufacturing defects. Warranty claims processed within 5 business days.
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