Bently Nevada 330103-10-18-50-01-00 – 8mm Eddy Current Proximity Probe | 3300 XL Series Vibration Monitoring Platform
Engineering Background: The Bently Nevada 3300 Series represents the industry benchmark for continuous shaft vibration, position, and eccentricity measurement in rotating machinery. Developed under Baker Hughes (formerly GE Measurement & Control), the 3300 XL proximity transducer system is deployed across turbines, compressors, pumps, and gearboxes in the most demanding process industries worldwide. The 330103 probe series is the standard 8mm eddy current probe within this ecosystem, engineered for long-term stability in high-temperature, high-vibration environments.
Product Positioning: The 330103-10-18-50-01-00 is a specific configuration of the 330103 8mm probe, defined by its cable length, connector type, and armor specification. It is the direct OEM-specified replacement for existing 3300 XL installations and is fully interchangeable with the Bently Nevada 3300 XL 8mm driver/extension cable system. Konmask.com supplies this probe through verified industrial sourcing channels with full traceability documentation.
Complete Technical Specifications
- Part Number: 330103-10-18-50-01-00
- Manufacturer: Bently Nevada (Baker Hughes)
- Series: 3300 XL 8mm Proximity Transducer System
- Probe Type: Eddy Current (Non-contact) Proximity Probe
- Probe Diameter: 8 mm
- Probe Body Length: 18 mm (per part number configuration)
- Cable Length: 5.0 m (per -50 designation)
- Connector: Standard Bently Nevada coaxial connector (-01-00)
- Sensitivity: 7.87 V/mm (200 mV/mil) nominal
- Linear Range: 0.25 mm to 2.54 mm (10 mil to 100 mil)
- Frequency Response: DC to 10,000 Hz (–3 dB)
- Operating Temperature: –35 °C to +177 °C (probe tip)
- Target Material: AISI 4140 steel (standard); other alloys require calibration
- Armor / Jacket: Stainless steel armored cable (per -01-00 spec)
- Agency Approvals: CE, CSA, FM (Intrinsically Safe configurations available)
- Compatible Driver: Bently Nevada 3300 XL 8mm Driver (330180 series)
- Compatible Extension Cable: Bently Nevada 330130 series
- Weight: Approx. 200 g (probe + cable assembly)
- Condition Available: New / Refurbished-to-OEM-spec
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring (API 670 compliant installations)
- Centrifugal compressor rotor position and vibration measurement
- Boiler feed pump and cooling water pump bearing monitoring
- Gearbox and motor shaft eccentricity measurement
- Hydro turbine guide bearing vibration surveillance
- Petrochemical and LNG plant rotating equipment protection systems
- Power generation (nuclear, thermal, combined-cycle) turbine protection
- Offshore platform compressor and pump train monitoring
Engineering Advantages
- Non-contact measurement eliminates mechanical wear and enables continuous online monitoring without process interruption.
- DC to 10 kHz bandwidth captures both low-frequency shaft position drift and high-frequency vibration events in a single channel.
- OEM-matched sensitivity (7.87 V/mm) ensures direct interchangeability with existing 3300 XL system calibration — no recalibration of the monitoring rack required when replacing like-for-like.
- Stainless steel armored cable resists mechanical damage, chemical exposure, and high-pressure wash-down in harsh plant environments.
- Wide temperature rating (–35 °C to +177 °C) covers cryogenic service through high-temperature turbine bearing housings.
- API 670 compliance satisfies machinery protection system requirements for critical and essential rotating equipment per international standards.
System Architecture & Signal Flow
The 330103-10-18-50-01-00 probe operates as part of a three-component eddy current transducer system:
- Probe (330103-10-18-50-01-00): Generates a high-frequency electromagnetic field at the probe tip. Eddy currents induced in the conductive target shaft attenuate the field in proportion to the gap distance.
- Extension Cable (330130 series): Transmits the modulated RF signal from the probe to the driver with minimal signal loss. Total system cable length (probe + extension) must equal the calibrated system length (typically 5 m or 9 m).
- Driver / Oscillator-Demodulator (330180 series): Converts the RF signal into a DC voltage output (–24 VDC nominal supply; output range –2 VDC to –18 VDC). The driver output connects directly to the 3300 Series monitoring rack input card.
Signal output is a negative DC voltage proportional to probe-to-target gap. Increasing gap = more negative output voltage. The monitoring system interprets this signal for vibration amplitude, shaft centerline position, and alarm/trip logic.
Sourcing & Quality Verification
- Visual & Physical Inspection: Probe tip, cable jacket, armor, and connector examined for damage, corrosion, and counterfeit indicators.
- Part Number Traceability: Full part number, date code, and serial number cross-referenced against Bently Nevada documentation.
- Electrical Verification: Probe inductance and resistance measured and compared against OEM specification tolerances.
- System-Level Functional Test: Where feasible, probe is tested with a compatible 330180 driver against a calibrated steel target to verify sensitivity and linear range output.
- Documentation Package: Test report, traceability record, and packing checklist included with every shipment.
Procurement Process
- Step 1: Add to cart or contact us directly for volume pricing and lead-time confirmation.
- Step 2: Specify required condition (New / Refurbished) and any system-specific requirements (total cable length, connector type) in order notes.
- Step 3: Our engineering team confirms availability and issues a proforma invoice within 1 business day.
- Step 4: Upon payment, the unit is picked, tested, documented, and dispatched — typically within 2 business days.
- Step 5: Receive shipment with full documentation package. Post-delivery technical support available via email.
For urgent RFQs or large-quantity orders: support@konmask.com | +0086 19859288691
Technical FAQ
Q: Is the 330103-10-18-50-01-00 compatible with the older 3300 (non-XL) monitoring system?
A: The 3300 XL probe system is backward-compatible with most 3300 series rack cards, but sensitivity and gap voltage must be verified against your specific driver and rack configuration. Contact us for application-specific guidance.
Q: Can this probe be used with a non-Bently Nevada driver?
A: The 330103 probe is optimized for use with Bently Nevada 330180-series drivers. Use with third-party drivers requires independent calibration and is not recommended for API 670 protection-class applications.
Q: What target material is the standard calibration based on?
A: AISI 4140 steel. If your shaft material differs (e.g., Inconel, titanium, stainless steel), a material correction factor or field recalibration is required. We can advise on correction factors for common alloys.
Q: Do you supply the complete transducer system (probe + extension + driver)?
A: Yes. We can supply matched probe, extension cable, and driver as a complete calibrated system. Please specify total cable length and rack slot requirements when ordering.
Q: What warranty applies?
A: New units carry remaining OEM warranty where applicable. Refurbished units carry a 12-month Konmask.com functional warranty covering defects in materials and workmanship.
Q: Can you provide a certificate of conformance?
A: Yes. A certificate of conformance and test report are included as standard with every shipment.
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Contact: support@konmask.com | +0086 19859288691
