Bently Nevada 330904-00-20-50-02-00 3300 XL NSv Proximity Transducer System | Replacement, Equivalent & Selection Guide
The Bently Nevada 330904-00-20-50-02-00 is a high-precision eddy-current proximity transducer from the 3300 XL NSv series, engineered for continuous shaft vibration, position, and eccentricity monitoring in rotating machinery. Konmask.com supplies this module as a genuine OEM part and can assist with compatible replacements and cross-reference selection.
Technical Specifications
- Part Number: 330904-00-20-50-02-00
- Series: Bently Nevada 3300 XL NSv
- Type: Eddy-Current Proximity Transducer
- Probe Length: 20 cm (200 mm)
- Cable Length: 5.0 m (500 cm)
- Thread: 8 mm
- Gap Range: 0.25 – 2.25 mm (10 – 90 mil)
- Scale Factor: 7.87 V/mm (200 mV/mil)
- Frequency Response: 0 – 10,000 Hz
- Operating Temperature: -35°C to +177°C (probe); -35°C to +85°C (extension cable)
- Supply Voltage: -24 VDC (nominal)
- Output: -1 to -17 VDC
- Approvals: CE, ATEX, IECEx (intrinsically safe options available)
- Connector: Integral coaxial connector
- Weight: ~40 g
Compatible Replacement & Equivalent Models
The following models are commonly cross-referenced as functional equivalents or drop-in replacements for the 330904-00-20-50-02-00. Always verify gap range, scale factor, and connector compatibility before substitution.
- 330900-00-20-50-02-00 – 3300 XL 8 mm standard probe, same thread/cable, different series
- 330903-00-20-50-02-00 – 3300 XL NSv, 20 cm probe, 5 m cable, alternate connector
- 330905-00-20-50-02-00 – Extended temperature NSv variant
- 330780-90-00 – 3300 XL 8 mm Proximity Transducer System (legacy equivalent)
- Emerson 330104-00-20-10-02-00 – 3300 5 mm series (requires conditioner check)
- Metrix ST5484E – Third-party eddy-current transducer (verify scale factor 7.87 V/mm)
- Epro PR6423 – Compatible eddy-current probe (confirm system conditioner compatibility)
Note: Replacement selection must match the original scale factor, gap range, and conditioner pairing. Contact Konmask for a verified cross-reference.
Why Choose the Original Model
- Factory-calibrated scale factor (7.87 V/mm) ensures measurement accuracy without recalibration
- Full system certification – probe, extension cable, and conditioner are certified as a matched set
- Proven reliability in gas turbines, steam turbines, compressors, and pumps worldwide
- Direct integration with Bently Nevada 3500 and System 1 monitoring platforms
- OEM traceability – genuine parts with full documentation and warranty support
Typical Applications
- Shaft radial vibration monitoring (API 670 compliant)
- Axial position / thrust measurement
- Differential expansion monitoring
- Eccentricity measurement on large rotating shafts
- Speed and phase reference (Keyphasor)
- Gas turbines, steam turbines, centrifugal compressors, pumps, motors
System Compatibility
- Conditioner: Bently Nevada 3300 XL NSv Proximitor® Sensor (e.g., 330180-X1-05)
- Monitoring System: Bently Nevada 3500 Series Rack (3500/40M, 3500/42M, 3500/45, 3500/46)
- Software Platform: Emerson System 1 Condition Monitoring Software
- Extension Cable: 3300 XL 5 m extension cable (sold separately)
- Not compatible with: 3300 5 mm series conditioners without scale factor adjustment
Selection Guide
Use the table below to identify the correct 330904 variant for your application:
- Probe Length: 20 cm (standard) | 50 cm (extended reach available)
- Cable Length: 02 = 2 m | 05 = 5 m | 09 = 9 m | 14 = 14 m
- Thread Size: 8 mm (standard for 3300 XL NSv)
- Temperature Rating: Standard (-35 to +177°C) | High-temp option available
- Hazardous Area: Standard | ATEX/IECEx intrinsically safe (specify on order)
If your application requires a non-standard cable length, high-temperature rating, or hazardous area certification, contact Konmask for a custom part number configuration.
Quality Assurance & Sourcing
- All units sourced from authorized distributors or verified OEM channels
- Each module inspected and function-tested prior to shipment
- Genuine Bently Nevada / Emerson packaging and documentation included
- Traceability records available upon request (batch/lot number, COC)
- Export compliance: ECCN classification available; HTS 9031.80.9090
How to Order
- Confirm your part number: 330904-00-20-50-02-00
- Specify quantity and required delivery timeline
- Request a quote via support@konmask.com or add to cart directly
- For replacement/equivalent inquiries, provide your existing part number and conditioner model
- Lead time: In-stock items ship within 1–3 business days; special orders 2–4 weeks
Replacement & Compatibility FAQ
Q: Can I use a 330900 series probe as a direct replacement for the 330904?
A: The 330900 (standard) and 330904 (NSv) share the same 8 mm thread and physical form factor, but the NSv series uses a different conditioner. Verify your conditioner model before substituting.
Q: Is the 330904-00-20-50-02-00 compatible with the Bently Nevada 3500/40M monitor?
A: Yes, when paired with the correct 3300 XL NSv Proximitor® conditioner and proper gap setting.
Q: What does the part number suffix mean?
A: 330904 – 00 (standard) – 20 (20 cm probe) – 50 (5.0 m cable) – 02 (8 mm thread) – 00 (standard temp/connector).
Q: Can Konmask supply a Certificate of Conformance?
A: Yes. COC and traceability documentation are available upon request for all genuine OEM parts.
Q: Do you offer repair or exchange service?
A: Yes. Contact us for repair evaluation, exchange pricing, or loaner availability.
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