Bently Nevada 330703-020-100-90-02-00 – Non-Contact Proximity Transducer | 3300 XL NSv Platform
Engineering Background: The Bently Nevada 3300 XL NSv series represents the industry benchmark for non-contacting eddy-current proximity measurement in rotating machinery protection. Designed for continuous, real-time shaft vibration and position monitoring, this system is deployed globally in turbines, compressors, pumps, and critical rotating assets across oil & gas, power generation, and petrochemical industries.
Product Positioning: Part number 330703-020-100-90-02-00 is a complete proximity transducer system configured for 2-metre (200 cm) extension cable, 100 mm probe tip-to-driver distance, and standard 90° connector orientation. It integrates directly with Bently Nevada 3300 series monitors and is fully compatible with API 670 machinery protection standards.
Complete Technical Specifications
- Part Number: 330703-020-100-90-02-00
- Series / Platform: 3300 XL NSv Proximity Transducer System
- Manufacturer: Bently Nevada (Baker Hughes)
- Measurement Type: Non-contacting eddy-current (proximity / displacement)
- Probe Tip Diameter: 8 mm
- Extension Cable Length: 2 m (200 cm)
- Driver-to-Probe Distance: 100 mm
- Connector Orientation: 90° (right-angle)
- Output Signal: –24 VDC nominal (standard Bently Nevada voltage output)
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Linear Range: 0.25 mm – 2.25 mm (10 mil – 90 mil)
- Frequency Response: DC to 10,000 Hz
- Operating Temperature: –35°C to +177°C (probe); –35°C to +85°C (driver)
- Target Material: AISI 4140 steel (standard); other alloys available
- Agency Approvals: CE, ATEX, IECEx (intrinsically safe configurations)
- Compliance: API 670 4th Edition
- Weight: ~300 g (system)
Proven Application Environments
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal and axial compressor rotor position measurement
- Pump and motor bearing displacement surveillance
- Gearbox and expander critical machinery protection
- Petrochemical plant continuous process machinery
- Power generation baseload and peaking turbine trains
- LNG plant rotating equipment protection systems
Engineering Advantages
- NSv Technology: Non-contacting, wear-free measurement eliminates sensor degradation from shaft contact
- High Frequency Response: DC–10 kHz bandwidth captures sub-synchronous, synchronous, and high-frequency vibration events
- API 670 Compliant: Drop-in replacement for existing 3300 XL installations without recalibration
- Robust Construction: Stainless steel probe body rated for high-temperature, high-pressure environments
- System Integrity: Matched probe-cable-driver set ensures factory-calibrated accuracy across the full linear range
- Plug-and-Play Integration: Direct compatibility with Bently Nevada 3300/3500 series monitors and System 1 software
System Architecture & Signal Flow
The 330703-020-100-90-02-00 operates as a three-component matched system:
- Probe (Sensor): 8 mm eddy-current tip generates oscillating electromagnetic field; shaft displacement modulates field impedance
- Extension Cable (2 m): Low-loss coaxial cable transmits high-frequency signal from probe to driver with minimal attenuation
- Driver (Proximitor®): Demodulates the probe signal and outputs a DC voltage proportional to gap distance (–24 VDC supply, 7.87 V/mm output)
- Monitor Interface: Driver output connects directly to Bently Nevada 3300/3500 monitor input cards for alarm, trip, and trending functions
Sourcing & Quality Verification
- Units sourced from authorized distributors and verified surplus channels
- Each unit inspected for physical integrity, connector condition, and cable continuity prior to shipment
- Original Bently Nevada / Baker Hughes labeling and part number markings verified
- Traceability documentation available upon request for critical installations
- 30-day return policy for DOA units; warranty terms available on request
Procurement Process
- Step 1: Confirm part number 330703-020-100-90-02-00 matches your installation’s cable length, connector orientation, and driver type
- Step 2: Submit inquiry or place order via Konmask.com product page
- Step 3: Receive order confirmation with lead time and shipping details within 1 business day
- Step 4: Unit ships with inspection report; tracking provided via email
- Step 5: Installation support available via email or phone for qualified engineers
Technical FAQ
Q: Is 330703-020-100-90-02-00 compatible with the Bently Nevada 3500 monitor system?
A: Yes. The 3300 XL NSv transducer system is electrically and mechanically compatible with 3500 series monitor input cards when using the appropriate interface module.
Q: Can this transducer be used with non-steel target materials?
A: The standard calibration is for AISI 4140 steel. For Inconel, titanium, or other alloys, a material correction factor or field recalibration is required. Contact our technical team for guidance.
Q: What is the difference between the NSv and standard 3300 XL probes?
A: The NSv (Non-contacting Shaft vibration) variant features enhanced EMI shielding and improved linearity at high shaft speeds, making it preferred for high-speed turbomachinery above 10,000 RPM.
Q: Is a calibration certificate included?
A: Factory calibration data is embedded in the matched system. Third-party calibration certificates can be arranged upon request for an additional fee.
Q: What is the lead time for this part?
A: Typically 1–5 business days for in-stock units. Contact us for urgent or large-quantity requirements.
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