Bently Nevada 330903-00-19-10-02-05/CN – 8mm Eddy Current Proximity Probe | 3300 NSv Series
Engineering Background
The Bently Nevada 3300 NSv (Non-Standard Voltage) Proximity Probe System is the industry benchmark for continuous, non-contact vibration and position measurement in rotating machinery. Developed by Baker Hughes (Bently Nevada), the 3300 NSv platform is engineered to meet the stringent demands of API 670-compliant machinery protection systems deployed in refineries, power generation, petrochemical, and heavy industrial facilities worldwide.
Product Positioning
Part number 330903-00-19-10-02-05/CN is an 8mm diameter eddy current proximity probe with a 500 mm (19-inch) armored cable, designed for radial vibration, axial position (thrust), and differential expansion measurement. The /CN suffix denotes the Chinese market configuration. This probe is a direct OEM replacement for installed 3300 NSv systems and is fully interchangeable within the 3300 NSv signal conditioning chain.
Complete Technical Specifications
| Part Number | 330903-00-19-10-02-05/CN |
| Series / Platform | Bently Nevada 3300 NSv |
| Probe Tip Diameter | 8 mm |
| Sensing Technology | Eddy Current (Non-Contact) |
| Cable Length | 500 mm (19 in) armored integral cable |
| Extension Cable | Compatible with 3300 XL 05 / 3300 NSv extension cables |
| Proximitor / Driver | 3300 NSv Proximitor (e.g. 330180 series) |
| Output Sensitivity | 7.87 V/mm (200 mV/mil) nominal |
| Linear Range | 0.25 – 2.54 mm (10 – 100 mil) |
| Operating Temperature | –35 °C to +177 °C (probe body) |
| Target Material | AISI 4140 steel or equivalent ferromagnetic alloy |
| Connector | MIL-C-5015 style, 2-pin |
| Housing Material | 316 Stainless Steel |
| Ingress Protection | IP67 (probe body) |
| Approvals / Compliance | API 670, CE, ATEX (Ex ia IIC T6), IECEx |
| Weight | ~40 g |
| Country of Origin | United States |
| HS Code | 9031.80.9090 |
Proven Application Environments
- Steam & Gas Turbines – Radial shaft vibration and axial thrust position monitoring per API 670
- Centrifugal Compressors – High-speed rotor dynamics measurement in petrochemical trains
- Pumps & Fans – Continuous bearing health monitoring in critical rotating assets
- Gearboxes – Gear mesh frequency and shaft orbit analysis
- Hydro & Nuclear Power – Long-term continuous duty in harsh, high-humidity environments
- Offshore & Marine – Corrosion-resistant 316SS housing suitable for salt-spray exposure
Engineering Advantages
- Non-Contact Measurement – Zero mechanical wear; unlimited service life under normal operating conditions
- High Frequency Response – Flat response from DC to >10 kHz; captures sub-synchronous, synchronous, and super-synchronous vibration components
- API 670 Compliant – Drop-in replacement for existing 3300 NSv installations without recalibration of the Proximitor
- Armored Cable – Stainless steel braid protects against mechanical damage, EMI, and chemical exposure
- Wide Temperature Range – Qualified for hot-section turbine bearing housings up to 177 °C
- ATEX / IECEx Certified – Safe for Zone 0/1 hazardous area installation
System Architecture & Signal Flow
The 330903-00-19-10-02-05/CN operates as part of a three-component eddy current measurement chain:
- Proximity Probe (330903-00-19-10-02-05/CN) – Generates a high-frequency electromagnetic field at the probe tip; field perturbation by the conductive target shaft is converted to a voltage signal.
- Extension Cable (3300 NSv, matched length) – Transmits the raw RF signal from the probe to the Proximitor driver with minimal loss. Cable length is system-calibrated; do not substitute with non-matched cables.
- Proximitor / Signal Conditioner (330180 series) – Demodulates the RF carrier, outputs a DC-coupled voltage proportional to gap distance (–24 VDC bias, 7.87 V/mm sensitivity). Output feeds directly to Bently Nevada 3500 or 3300 rack monitors, DCS, or standalone vibration analyzers.
Note: The complete system (probe + extension cable + Proximitor) must be ordered and calibrated as a matched set. Mixing components from different series (e.g., 3300 XL 8mm with 3300 NSv Proximitor) will result in sensitivity errors and is not recommended.
Sourcing & Quality Verification
- OEM Traceability – All units sourced through authorized Baker Hughes / Bently Nevada distribution channels or verified surplus with full documentation.
- Incoming Inspection – Each probe undergoes dimensional verification, connector integrity check, and DC resistance measurement prior to dispatch.
- Authenticity Guarantee – Konmask.com provides a Certificate of Conformance (CoC) and, where available, original factory test reports upon request.
- Packaging – Ships in original OEM packaging or equivalent ESD-safe protective packaging with individual part number labeling.
Procurement Process
- Submit your RFQ via the product page or email support@konmask.com with your required quantity and delivery timeline.
- Receive a formal quotation with lead time, CoC availability, and shipping options within 1 business day.
- Confirm purchase order; payment via T/T, PayPal, or credit card accepted.
- Dispatch within 3–5 business days for in-stock units; expedited options available.
- Tracking number and shipping documents (commercial invoice, packing list, CoC) provided upon shipment.
Technical FAQ
Q: Is the 330903-00-19-10-02-05/CN compatible with the Bently Nevada 3500 monitoring rack?
A: Yes, when paired with the correct 3300 NSv Proximitor (e.g., 330180-91-00), the output signal is fully compatible with 3500 series monitors configured for 7.87 V/mm sensitivity.
Q: What is the difference between the /CN suffix and the standard version?
A: The /CN suffix designates the Chinese market configuration, which may include localized documentation and compliance markings. Electrically and mechanically, the probe is identical to the standard 330903-00-19-10-02-05.
Q: Can I use a 3300 XL extension cable with this probe?
A: No. The 3300 NSv system requires matched NSv extension cables. Using XL cables will introduce calibration errors. Always specify the complete matched system when ordering.
Q: What target materials are compatible?
A: The probe is calibrated for AISI 4140 steel. Other ferromagnetic or non-ferromagnetic materials (e.g., Inconel, titanium) require a material correction factor. Contact our engineering team for target material compensation data.
Q: Do you provide installation and commissioning support?
A: Yes. Konmask.com offers remote technical support for installation, gap setting, and system verification. Contact support@konmask.com or call +0086 19859288691.
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Contact: support@konmask.com | +0086 19859288691
