Bently Nevada 330103-00-02-50-02-CN – 5mm Proximity Transducer | 3300 XL Series Platform
Engineering Background: The Bently Nevada 3300 XL Proximity Transducer System is the industry benchmark for non-contact, eddy-current-based shaft vibration and position measurement in rotating machinery. Engineered to operate within the Bently Nevada 3300 XL signal conditioning ecosystem, this system delivers sub-micron resolution and exceptional linearity across demanding industrial environments.
Product Positioning: The 330103-00-02-50-02-CN is a complete proximity transducer assembly configured with a 5mm probe tip, 2-metre (50-inch) integral cable, and CN-style connector. It is the preferred choice for procurement engineers specifying vibration monitoring on steam turbines, compressors, pumps, and gearboxes where API 670 compliance is required.
Complete Technical Specifications
- Part Number: 330103-00-02-50-02-CN
- Series / Platform: Bently Nevada 3300 XL Proximity Transducer System
- Probe Tip Diameter: 5 mm
- Cable Length: 2 m (approximately 50 inches integral cable)
- Connector Type: CN (coaxial, field-replaceable)
- Measurement Principle: Eddy-current (non-contact)
- Nominal Gap Range: 0.25 mm – 2.25 mm (10 – 90 mil)
- Scale Factor: 7.87 V/mm (200 mV/mil) nominal
- Frequency Response: DC – 10,000 Hz (–3 dB)
- Operating Temperature: –35 °C to +121 °C (probe); –35 °C to +66 °C (driver)
- Supply Voltage: –24 VDC (nominal), compatible with 3300 XL drivers
- Output: –2 VDC to –18 VDC (linear range)
- Target Material: AISI 4140 steel (standard); other alloys require recalibration
- Approvals / Standards: API 670, CE, CSA, FM (intrinsically safe configurations available)
- Weight: Approx. 40 g (probe assembly)
- Country of Origin: USA (Baker Hughes / Bently Nevada)
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal and reciprocating compressor thrust position measurement
- Pump and motor bearing journal orbit analysis
- Gearbox and expander differential expansion monitoring
- Petrochemical, LNG, power generation, and offshore platforms
- Any API 670-compliant machinery protection system
Engineering Advantages
- Non-contact measurement eliminates mechanical wear and extends sensor service life indefinitely
- High linearity (<±0.5%) across the full gap range ensures accurate alarm and trip setpoints
- Wide frequency bandwidth (DC–10 kHz) captures both slow-roll runout and high-frequency sub-synchronous instabilities
- Integral cable design minimises connector-induced signal noise in high-EMI environments
- Direct drop-in replacement for existing 3300 XL installations — no reconfiguration of drivers or monitors required
- CN connector provides secure, vibration-resistant mating in harsh field conditions
System Architecture & Signal Flow
The 330103-00-02-50-02-CN operates as the sensing element within the Bently Nevada 3300 XL three-component system:
- Probe (330103-00-02-50-02-CN) — generates eddy-current field; outputs raw RF signal via integral cable
- Extension Cable (330130 series) — routes signal from probe to driver/oscillator (if required by installation geometry)
- Driver / Oscillator-Demodulator (330180 / 330185 series) — conditions RF signal to DC voltage proportional to gap distance; mounts in junction box or monitor rack
- Monitor (3500/40M or equivalent) — processes DC voltage for alarm, trip, and data acquisition
Total system cable length (probe integral + extension) must not exceed the calibrated length specified for the driver. Verify driver part number compatibility before ordering extension cables.
Sourcing & Quality Verification
- All units sourced from authorised distributors or verified surplus channels with full traceability documentation
- Each unit inspected for: correct part number label, connector integrity, cable jacket condition, and probe tip concentricity
- Calibration certificates and test reports available upon request for critical applications
- Serialised units can be cross-referenced against Bently Nevada factory records where applicable
- Packaging inspected for tamper evidence; counterfeit-risk assessment performed on every batch
Procurement Process
- Confirm compatibility — verify your existing driver part number and total cable length budget
- Request a quote — contact us with quantity, required lead time, and any documentation requirements
- Order confirmation — receive proforma invoice with unit serial numbers and inspection report reference
- Shipping — EXW Xiamen or DDP options available; DHL / FedEx express for urgent requirements
- After-sales support — technical assistance available for installation, gap setting, and system commissioning
Technical FAQ
Q: Can this probe be used with a 3300 XL driver of a different cable length rating?
A: No. The probe, extension cable, and driver must be calibrated as a matched system. Mixing unmatched components will result in scale factor error and potential false trips.
Q: What target material is this probe calibrated for?
A: Standard calibration is for AISI 4140 steel. For stainless steel, titanium, or other alloys, a material-specific calibration factor must be applied — contact us for recalibration options.
Q: Is the 330103-00-02-50-02-CN compatible with the 3500 monitoring system?
A: Yes, when paired with a compatible 3300 XL driver (e.g. 330180-91-00). The 3500 monitor accepts the conditioned DC output from the driver.
Q: Do you provide ATEX / IECEx certified units?
A: Intrinsically safe configurations are available within the 3300 XL product family. Please specify your hazardous area classification when enquiring.
Q: What is the typical lead time?
A: In-stock units ship within 1–3 business days. For bulk orders or documentation-intensive requirements, allow 5–10 business days.
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