Bently Nevada 330903-00-17-05-02-00 — Eddy-Current Proximity Probe | 3300 NSv Platform
Engineering Background
The Bently Nevada 3300 NSv Series represents the industry benchmark for non-contacting eddy-current displacement measurement in rotating machinery protection and condition monitoring. Engineered to API 670 standards, this platform has been deployed across power generation, petrochemical, and heavy industrial sectors for decades. The 330903-00-17-05-02-00 is a factory-configured probe assembly specifying cable length, tip diameter, and connector type — ensuring plug-and-play compatibility within certified 3300 NSv measurement chains.
Product Positioning
This probe is the primary sensing element in a 3-component system (probe + extension cable + proximitor/oscillator). It converts shaft radial displacement into a proportional DC voltage signal, enabling real-time vibration amplitude, eccentricity, and thrust position measurement without physical contact. Designed for procurement engineers sourcing OEM-equivalent replacements or expanding existing Bently Nevada installations.
Complete Technical Specifications
| Part Number | 330903-00-17-05-02-00 |
| Series / Platform | Bently Nevada 3300 NSv |
| Sensor Type | Eddy-Current Non-Contacting Proximity Probe |
| Probe Tip Diameter | 5 mm (standard) |
| Cable Length | 0.5 m (integral cable, per suffix -17) |
| Connector Type | Standard BNC / per suffix -02-00 |
| Measurement Range | 0 – 2.54 mm (0 – 100 mil) linear range |
| Scale Factor | 7.87 V/mm (200 mV/mil) nominal |
| Operating Temperature | −35 °C to +177 °C (probe body) |
| Target Material | AISI 4140 steel (standard); other alloys require recalibration |
| Housing Material | 316 Stainless Steel |
| Thread | M10 × 1 (standard mounting) |
| IP Rating | IP67 (probe body) |
| Compliance | API 670, CE, ATEX (zone classification per system config) |
| Compatible Proximitor | 3300 XL 8mm / 3300 NSv Proximitor Module |
| Weight | ~40 g |
| Country of Origin | United States |
| HS Code | 9031.80.9090 |
Proven Application Environments
- Power Generation: Steam turbine shaft radial vibration and thrust position monitoring
- Oil & Gas: Centrifugal compressor and pump bearing displacement measurement
- Petrochemical: API 670-compliant machinery protection systems
- Heavy Industry: Gearbox, fan, and blower eccentricity monitoring
- Marine & Offshore: Propulsion shaft and auxiliary machinery surveillance
- Pulp & Paper: High-humidity rotating equipment condition monitoring
Engineering Advantages
- Non-contacting measurement — zero mechanical wear, unlimited service life at the sensing interface
- High linearity — ±1% full-scale accuracy over calibrated range on standard 4140 steel targets
- Wide temperature tolerance — rated to 177 °C probe body, suitable for hot-section turbine pedestals
- 316 SS housing — corrosion-resistant in H₂S, steam, and process fluid environments
- Direct OEM replacement — identical form, fit, and function to factory-installed units; no recalibration of the proximitor required when replacing like-for-like
- API 670 certified system — meets international machinery protection standard when used with matched 3300 NSv proximitor and extension cable
System Architecture & Signal Flow
The 3300 NSv measurement chain operates as follows:
- Probe (330903-00-17-05-02-00) — generates high-frequency eddy-current field; senses gap to rotating shaft
- Extension Cable — transmits RF signal from probe to proximitor (total system cable length must match proximitor calibration)
- Proximitor / Oscillator-Demodulator — converts RF signal to DC voltage output (−24 VDC bias, 7.87 V/mm scale factor)
- Monitor / DCS Input — 4–20 mA or voltage input card reads displacement in engineering units
Note: Total cable length (integral + extension) must equal the value specified during proximitor calibration. Mixing cable lengths from different calibration sets will introduce measurement error.
Sourcing & Quality Verification
- All units sourced through authorized industrial distribution channels or verified surplus with full traceability documentation
- Pre-shipment inspection includes: visual examination, connector integrity check, and dimensional verification of probe tip and thread
- Original manufacturer labeling and part number markings preserved and verified against Bently Nevada part number structure
- Certificate of Conformance (CoC) available upon request for critical applications
- Konmask.com maintains a quality management process aligned with industrial B2B procurement requirements
Procurement Process
- Confirm compatibility — verify your existing proximitor model and total cable length before ordering
- Place order — add to cart and complete checkout; B2B invoicing available on request
- Order confirmation — receive confirmation email with estimated lead time within 1 business day
- Shipping — dispatched with tracking; export documentation provided for international shipments
- Technical support — contact support@konmask.com for application engineering questions
Technical FAQ
Q: Can this probe be used with a 3300 XL 8mm proximitor?
A: Yes, provided the total cable length matches the proximitor’s calibration specification. Verify the calibration data plate on your proximitor before installation.
Q: What target material is this probe calibrated for?
A: Standard calibration is for AISI 4140 steel. Stainless steel, titanium, or other alloy targets require a target material correction factor or field recalibration.
Q: Is this probe ATEX certified for hazardous area use?
A: ATEX classification applies to the complete certified system (probe + cable + proximitor). Confirm the full system certification documentation for your specific hazardous area classification.
Q: What is the lead time?
A: In-stock units typically ship within 1–3 business days. Contact us for urgent requirements or volume orders.
Q: Can you provide a Certificate of Conformance?
A: Yes. Request CoC documentation at the time of order or via support@konmask.com.
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