Bently Nevada 330901-14-43-05-02-05 3300 NSv Proximity Probe | Replacement, Equivalent & Selection Guide
The Bently Nevada 330901-14-43-05-02-05 is a high-precision eddy-current proximity probe from the 3300 NSv Series, engineered for continuous non-contact vibration and position measurement in rotating machinery. This page provides full technical specifications, compatible replacement models, application guidance, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Part Number: 330901-14-43-05-02-05
- Series: Bently Nevada 3300 NSv Proximity Probe System
- Sensing Technology: Eddy-current (non-contact)
- Probe Tip Diameter: 5 mm (standard)
- Cable Length: 14 inches (integral cable)
- Thread Size: M10 × 1 (metric)
- Connector Type: 02 (standard coaxial)
- Temperature Range: –30 °C to +177 °C
- Linear Range: 0.25 mm to 2.25 mm (nominal)
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Supply Voltage: –24 VDC (via driver/extension cable)
- Output: Analog voltage, proportional to gap distance
- Housing Material: Stainless steel
- Approvals: Compatible with ATEX / IECEx hazardous area installations (verify driver pairing)
- Weight: ~40 g
Compatible Replacement & Equivalent Models
The table below lists direct and near-equivalent replacement options. Always verify system compatibility (driver, extension cable, monitor) before substitution.
- 330901-14-43-05-02-00 — Same probe, standard connector variant; verify connector compatibility
- 330901-14-43-05-02-CN — China-market variant with identical electrical specs
- 330901-14-43-05-00-05 — Alternate housing finish; electrically equivalent
- 330903-14-43-05-02-05 — 3300 XL 8mm probe; wider linear range, requires driver change
- 330780-50-00 — 3300 5mm probe with 50 cm integral cable; different cable length
- Emerson 330901 Series — Post-acquisition Emerson-branded equivalent; same form/fit/function
- Third-party 5mm eddy-current probes — Must match sensitivity (7.87 V/mm), thread (M10×1), and driver compatibility
⚠ Note: Always replace probe, extension cable, and driver as a matched set for calibrated accuracy.
Why Choose the Original Model
- Factory-calibrated matched set: The 330901-14-43-05-02-05 is calibrated as a system with its paired extension cable and 3300 NSv driver — ensuring measurement accuracy within ±0.5% of full scale.
- Proven reliability: Bently Nevada 3300 NSv probes are the industry standard for API 670-compliant machinery protection systems in turbines, compressors, and pumps.
- Long service life: Stainless steel housing and hermetically sealed tip resist oil, steam, and chemical exposure in harsh plant environments.
- OEM traceability: Original parts carry full OEM documentation, calibration certificates, and are accepted by insurance and regulatory auditors without question.
Typical Applications
- Steam and gas turbine shaft radial vibration monitoring
- Centrifugal compressor rotor position and vibration measurement
- Pump and motor bearing proximity sensing
- Gearbox and expander shaft displacement monitoring
- API 670 machinery protection systems
- Petrochemical, power generation, and LNG plant installations
System Compatibility
The 330901-14-43-05-02-05 probe is designed to operate as part of the Bently Nevada 3300 NSv Proximity Probe System, which consists of three matched components:
- Probe: 330901-XX-XX-05-XX-XX (5 mm tip, this series)
- Extension Cable: 330130-XX-XX (length-matched, must pair with probe cable length)
- Driver / Proximitor: 330180-X1-05 or 330180-X1-CN (3300 NSv driver, –24 VDC)
- Monitor: Bently Nevada 3500/40M, 3500/42M, or 3500/45 (radial vibration / position monitors)
Total system cable length (probe integral + extension) must equal the driver’s calibrated length. Mismatched lengths will cause calibration errors.
Selection Guide
Use the following decision matrix to select the correct 330901 variant for your application:
- Probe tip diameter: 5 mm (330901) vs. 8 mm (330903) — choose based on target material and gap range required.
- Integral cable length (2nd segment): 14 = 14 inches. Common options: 05 (5 in), 14 (14 in), 50 (50 cm metric). Match to your installation geometry.
- Thread size (3rd segment): 43 = M10×1 metric thread. Verify mounting boss thread before ordering.
- Tip configuration (4th segment): 05 = standard stainless tip. Options 00 and 05 differ in housing finish only.
- Connector type (5th segment): 02 = standard coaxial BNC-style. Match to extension cable connector.
- Approval suffix (6th segment): 05 = standard; CN = China CCC; 00 = no special approval. Select per site certification requirement.
Quick reference — part number decoder:
330901 - [cable in] - [thread] - [tip] - [connector] - [approval]
Quality Assurance & Sourcing
- Source: Konmask.com sources 330901-14-43-05-02-05 units from authorized distributors and verified surplus channels with full traceability documentation.
- Inspection: Each unit undergoes visual inspection and packaging integrity check prior to shipment.
- Calibration certificates: Available upon request for OEM-new units.
- Warranty: 12-month warranty against manufacturing defects on new units; 90-day warranty on tested surplus units.
- Export compliance: ECCN EAR99 — no export license required for most destinations. Contact us for restricted-country inquiries.
How to Order
- Online: Add to cart directly on this page. Secure checkout with DHL / FedEx international shipping.
- Email RFQ: support@konmask.com — include quantity, required delivery date, and site certification requirements.
- Phone / WhatsApp: +0086 19859288691
- Lead time: In-stock units ship within 1–3 business days. Special orders: 2–4 weeks.
- Payment: T/T wire transfer, PayPal, credit card (Visa/Mastercard via Shopify Payments).
Replacement & Compatibility FAQ
Q: Can I replace only the probe without changing the extension cable and driver?
A: Only if the replacement probe has an identical integral cable length and sensitivity. Replacing with a different cable length will shift the system calibration and require re-ranging the driver.
Q: Is the 330901-14-43-05-02-05 compatible with the Bently Nevada 3500 monitor system?
A: Yes, when paired with the correct 3300 NSv driver (330180 series) and matched extension cable, it is fully compatible with 3500/40M, 3500/42M, and 3500/45 monitors.
Q: What is the difference between the 330901 and 330903 series?
A: The 330901 uses a 5 mm probe tip; the 330903 uses an 8 mm tip. The 8 mm probe offers a wider linear range and is preferred for larger shaft diameters. They are not interchangeable without changing the driver calibration.
Q: Can third-party probes replace the 330901-14-43-05-02-05?
A: Third-party probes with matching sensitivity (7.87 V/mm), thread (M10×1), and cable length can be used in non-critical applications. For API 670 machinery protection, OEM or OEM-equivalent parts are strongly recommended.
Q: Do you provide a certificate of conformance?
A: Yes. A certificate of conformance (CoC) is available for all new units. Calibration certificates are available for OEM-new stock upon request.
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