Bently Nevada 330903-00-09-05-02-05 Proximity Transducer System | Replacement, Equivalent & Selection Guide
The Bently Nevada 330903-00-09-05-02-05 is a high-precision proximity transducer from the 3300 XL NSv Series, engineered for continuous shaft vibration and position monitoring in rotating machinery. This page provides full technical specifications, compatible replacement models, application guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Part Number: 330903-00-09-05-02-05
- Series: 3300 XL NSv Proximity Transducer System
- Manufacturer: Bently Nevada (Baker Hughes)
- Sensing Range: 0–9 mm (standard)
- Output: -18 VDC nominal (with matched driver/extension cable)
- Frequency Response: DC to 10,000 Hz
- Operating Temperature: -35°C to +177°C (transducer tip)
- Cable Length: 5 m extension cable (05 suffix)
- Target Material: AISI 4140 steel or equivalent
- Connector: Integral coaxial connector
- Approvals: CE, ATEX, FM (intrinsically safe configurations available)
- Weight: ~320 g (system)
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the 330903-00-09-05-02-05. Always verify system compatibility before substitution:
- Bently Nevada 330903-00-09-05-02-00 — Same transducer, 0 m extension (direct mount)
- Bently Nevada 330903-00-09-05-02-10 — 10 m extension cable variant
- Bently Nevada 330905-00-09-05-02-05 — 3300 XL 8 mm standard series equivalent
- Bently Nevada 330780-50-00 — 3300 XL 8 mm proximity transducer (alternative series)
- Epro PR6423/010-030 — Third-party equivalent, eddy-current proximity sensor, compatible with 3300 series drivers
- Metrix ST5484E — Functional equivalent for vibration monitoring applications
Note: Replacement models must be matched with the correct driver (e.g., 3300 XL driver) and extension cable to maintain system calibration.
Why Choose the Original Model
- Factory Calibration: Each 330903-00-09-05-02-05 is calibrated as a matched system (transducer + extension + driver), ensuring ±1% scale factor accuracy.
- OEM Compliance: Required for API 670 compliance in turbomachinery protection systems.
- Long-Term Support: Bently Nevada provides full documentation, calibration certificates, and traceability.
- Proven Reliability: Deployed globally in power generation, oil & gas, and petrochemical plants.
Typical Applications
- Steam and gas turbine shaft vibration monitoring
- Compressor radial and axial position measurement
- Pump and motor bearing displacement sensing
- Gearbox and expander rotor dynamics analysis
- API 670-compliant machinery protection systems
System Compatibility
The 330903-00-09-05-02-05 is designed to operate as part of the Bently Nevada 3300 XL NSv System, which includes:
- Driver: 3300 XL NSv Driver (e.g., 330180-X1-05)
- Extension Cable: 330130-045-00-00 (matched 5 m cable)
- Monitor: Compatible with 3500/40M, 3500/42M, and 3500/45 monitor modules
- System Scale Factor: 200 mV/mil (7.87 V/mm)
Do not mix components from different series (e.g., 3300 5 mm vs. 3300 XL 8 mm) without recalibration.
Selection Guide
Use the suffix breakdown of 330903-00-09-05-02-05 to select the correct variant:
- 330903 — Base model: 3300 XL NSv 8 mm proximity transducer
- 00 — Standard configuration
- 09 — 9 mm sensing range
- 05 — 5 m armored integral cable
- 02 — Standard temperature rating
- 05 — 5 m extension cable
Need a different cable length, temperature rating, or connector type? Contact our team — we stock multiple suffix variants and can advise on the correct configuration for your system.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified surplus channels
- Inspection and functional testing available upon request
- Calibration certificates and material traceability documents provided
- Packaging: original OEM or equivalent anti-static protective packaging
- Lead time: typically 3–10 business days; expedited options available
How to Order
- Confirm your part number: 330903-00-09-05-02-05
- Specify quantity and required delivery date
- Request a quote via support@konmask.com or add directly to cart
- Provide your system configuration (driver model, monitor type) for compatibility verification if needed
Replacement & Compatibility FAQ
Q: Can I use a 330903-00-09-05-02-00 instead of the -02-05?
A: Yes, if you are providing your own 5 m extension cable. The transducer body is identical; only the included extension cable length differs.
Q: Is the 330903-00-09-05-02-05 compatible with the 3500 series monitors?
A: Yes, when used with the correct 3300 XL NSv driver module. The 3500/40M and 3500/42M are fully compatible.
Q: Can an Epro PR6423 replace this unit?
A: Functionally similar, but the Epro unit requires driver reconfiguration and scale factor verification. Not a drop-in replacement for API 670 systems without re-engineering.
Q: Do you provide calibration certificates?
A: Yes. Calibration documentation is available for all units upon request.
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