Bentley Nevada 330854-080-25-00 Proximity Sensor | Replacement, Equivalent & Selection Guide
The Bentley Nevada 330854-080-25-00 is a high-precision eddy-current proximity sensor designed for continuous shaft vibration and position monitoring in rotating machinery. This page provides full technical specifications, verified compatible replacements, equivalent models, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Part Number: 330854-080-25-00
- Manufacturer: Bentley Nevada (Baker Hughes)
- Type: Eddy-Current Proximity Sensor (Non-contact)
- Cable Length: 8.0 m (standard; see variants for other lengths)
- Thread Size: M10 × 1.0
- Tip Diameter: 8 mm
- Measurement Range: 0.25 mm – 2.25 mm (linear range)
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Frequency Response: DC – 10,000 Hz
- Operating Temperature: −35°C to +177°C
- Target Material: AISI 4140 steel (or equivalent ferromagnetic alloy)
- System Compatibility: 3300 XL Series, 3500 Series monitoring systems
- Weight: 440 g (including cable)
- Approvals: CE, ATEX (consult datasheet for zone ratings)
Compatible Replacement & Equivalent Models
The following models are verified compatible replacements or functional equivalents for the 330854-080-25-00. Always confirm system configuration and gap calibration before substitution.
- 330854-090-25-00 — Same sensor, 9.0 m cable; drop-in replacement if cable routing allows
- 330854-080-25-05 — Armored cable variant; suitable for high-vibration or abrasive environments
- 330180-X1-05 — 3300 NSv Proximity Transducer System; compatible with 3300 XL drivers
- 330500-080-00-05 — 3300 XL 8 mm Proximity Transducer; same tip geometry, verify driver pairing
- 330104-00-08-10-02-00 — 7200 Series 8 mm probe; requires 7200 series driver, not interchangeable with 3300/3500 drivers
- Third-party equivalents — Must match: 8 mm tip, M10×1.0 thread, 200 mV/mil sensitivity, and 3300/3500 driver compatibility. Contact Konmask for pre-verified alternatives.
Why Choose the Original Model
- Factory-calibrated: Each unit is gap-calibrated and certified against Bentley Nevada standards, ensuring measurement accuracy from day one.
- System-matched: Designed and validated specifically for 3300 XL and 3500 Series drivers — no re-tuning required.
- Long-term reliability: Proven in continuous 24/7 operation across power generation, oil & gas, and petrochemical industries.
- OEM traceability: Full documentation, calibration certificates, and batch traceability available upon request.
- Warranty coverage: Original units sourced through authorized channels carry manufacturer warranty; third-party equivalents do not.
Typical Applications
- Shaft radial vibration monitoring on steam and gas turbines
- Axial position (thrust) measurement on compressors and pumps
- Differential expansion monitoring on large rotating machinery
- Speed and phase reference measurement (keyphasor applications)
- Eccentricity monitoring during turbine startup/shutdown
- Continuous condition monitoring in API 670-compliant protection systems
System Compatibility
| Monitoring System | Compatible | Notes |
|---|---|---|
| Bentley Nevada 3300 XL | ✅ Yes | Primary target system; direct replacement |
| Bentley Nevada 3500 Series | ✅ Yes | Compatible with 3500/42M and 3500/40M modules |
| Bentley Nevada 3300 NSv | ⚠️ Verify | Confirm driver model before installation |
| Bentley Nevada 7200 Series | ❌ No | Different driver architecture; use 330104 series |
| Third-party vibration monitors | ⚠️ Verify | Must accept 200 mV/mil, −24 VDC bias input |
Selection Guide
Use the following criteria to confirm the 330854-080-25-00 is the correct choice, or to identify the right alternative:
- Step 1 — Confirm driver: Identify your installed driver/monitor module (3300 XL, 3500/42M, etc.). The sensor must match the driver’s input specification.
- Step 2 — Confirm cable length: Measure the required cable run from sensor tip to driver input. The -080- suffix = 8.0 m. Other lengths: -050- (5 m), -090- (9 m), -100- (10 m).
- Step 3 — Confirm tip size: The 330854 series uses an 8 mm tip. If your bracket or housing requires a 5 mm tip, select the 330500 series instead.
- Step 4 — Confirm environment: Standard cable (-25-00 suffix) suits most installations. For high-temperature (>120°C ambient) or armored requirements, select the -25-05 variant.
- Step 5 — Confirm target material: Optimal for AISI 4140 steel. Non-standard alloys (titanium, Inconel) require recalibration — contact Konmask for support.
Quality Assurance & Sourcing
- All units sourced through verified industrial supply channels with full traceability documentation.
- Pre-shipment inspection includes visual check, connector integrity, and cable continuity test.
- Calibration certificates and original packaging available for OEM units.
- Refurbished/reconditioned units clearly labeled and priced separately — never mixed with new stock.
- Anti-counterfeit verification available on request for critical applications.
How to Order
- Online: Add to cart directly from this page. Stock status shown in real time.
- Bulk / Project orders: Email support@konmask.com with quantity, delivery timeline, and project details for a dedicated quote.
- Urgent requirements: Call +0086 19859288691 for same-day response on critical spares.
- Lead time: In-stock units ship within 1–3 business days. Out-of-stock items: contact us for sourcing timeline.
- Export / Cross-border: We support international shipping with full commercial invoice and packing list documentation.
Replacement & Compatibility FAQ
Q: Can I use the 330854-080-25-00 with a Bentley Nevada 3500/42M vibration monitor?
A: Yes. The 3500/42M accepts standard 3300 XL-compatible probes. Verify the driver’s input range matches the sensor’s −24 VDC bias and 200 mV/mil output.
Q: What is the difference between the 330854-080-25-00 and 330854-080-25-05?
A: The -25-05 suffix indicates an armored cable jacket, providing additional mechanical protection. Electrically and dimensionally identical; select -25-05 for harsh or high-vibration cable routing environments.
Q: Can a third-party 8 mm eddy-current probe replace this sensor?
A: Potentially, if it matches the 200 mV/mil sensitivity, M10×1.0 thread, and −24 VDC driver bias. However, system re-calibration is required and OEM warranty is voided. Contact Konmask for pre-verified alternatives.
Q: Do you supply calibration certificates with the sensor?
A: Yes, calibration certificates are available for OEM new units. Please specify at time of order.
Q: What if my target material is not AISI 4140 steel?
A: Non-standard target materials (e.g., titanium, Inconel, stainless steel) affect sensitivity. A target material correction factor or field recalibration is required. Contact our technical team for guidance.
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