Bently Nevada 330905-00-14-10-02-CN – 8mm Eddy Current Proximity Probe | 3300 NSv Series
Engineering Background
The Bently Nevada 3300 NSv (Non-Standard Voltage) Series represents the industry benchmark for continuous, non-contact shaft vibration and position measurement in rotating machinery. Engineered to operate within the Bently Nevada 3300 XL system architecture, the 330905-00-14-10-02-CN is a factory-configured 8mm probe optimized for high-temperature, high-vibration industrial environments where measurement integrity is non-negotiable.
Product Positioning
This probe is the preferred choice for procurement engineers specifying replacement or expansion sensors on gas turbines, steam turbines, compressors, pumps, and gearboxes instrumented with Bently Nevada 3300-series monitoring systems. The -CN suffix denotes the China-market configuration with localized cable termination and compliance documentation.
Complete Technical Specifications
| Part Number | 330905-00-14-10-02-CN |
| Series / Platform | Bently Nevada 3300 NSv (Non-Standard Voltage) |
| Probe Diameter | 8 mm |
| Sensing Technology | Eddy Current (Non-contact) |
| Cable Length | 1.4 m (integral armored cable) |
| Extension Cable | 1.0 m (system-matched, 02 suffix) |
| Operating Temperature | –40 °C to +177 °C (probe tip) |
| Linear Range | 0.25 mm – 2.54 mm (10 mil – 100 mil) |
| Scale Factor | 7.87 V/mm (200 mV/mil) nominal |
| Supply Voltage | –24 VDC (via Proximitor/Seismic Monitor) |
| Output Voltage Range | –1 VDC to –21 VDC |
| Frequency Response | DC to 10,000 Hz (–3 dB) |
| Target Material | AISI 4140 steel (standard); consult factory for other alloys |
| Housing Material | 316 Stainless Steel |
| Connector Type | Integral coaxial, armored |
| Ingress Protection | IP67 |
| Agency Approvals | CE, ATEX (consult datasheet for zone classification) |
| Weight | ~80 g |
| Country of Origin | USA / China-market variant |
Proven Application Environments
- Gas Turbines – Radial shaft vibration and axial position monitoring on GE, Siemens, and Solar turbines
- Steam Turbines – Continuous eccentricity and differential expansion measurement
- Centrifugal Compressors – API 670-compliant radial vibration channels
- Pumps & Gearboxes – High-speed shaft orbit and runout measurement
- Petrochemical & Refinery – SIL-rated machinery protection loops
- Power Generation – Continuous online monitoring per ISO 7919 / ISO 10816
Engineering Advantages
- System-Matched Performance – Factory-calibrated as a probe/cable/Proximitor set; eliminates field calibration drift
- NSv Architecture – Non-Standard Voltage output extends dynamic range for large-gap applications without signal conditioning modification
- Armored Cable – Stainless steel braid withstands oil mist, coolant splash, and mechanical abrasion in turbine enclosures
- 316 SS Housing – Corrosion-resistant body rated for hydrogen sulfide and chloride environments
- Drop-in Replacement – Direct OEM-equivalent for existing 3300 XL installations; no re-wiring or re-configuration required
- Wide Frequency Bandwidth – DC to 10 kHz captures subsynchronous, synchronous, and high-frequency vibration components
System Architecture & Signal Flow
The 330905-00-14-10-02-CN operates as part of a three-component Bently Nevada measurement chain:
- Proximity Probe (330905-00-14-10-02-CN) – Generates eddy current field; gap-to-voltage transduction at the tip
- Extension Cable (330130 series) – Transmits raw oscillator signal from probe to Proximitor; length must be system-matched
- Proximitor Seismic Monitor (3300 XL) – Provides –24 VDC excitation, demodulates signal, outputs calibrated DC voltage to monitor rack
Note: Total cable system length (probe cable + extension cable) must match the Proximitor calibration. Mixing unmatched cable lengths will shift the scale factor and invalidate API 670 compliance.
Sourcing & Quality Verification
- All units sourced through authorized industrial distribution channels or verified surplus with full traceability documentation
- Each probe inspected for housing integrity, connector condition, and cable armor continuity prior to dispatch
- Original OEM packaging and labeling preserved where available
- Certificate of Conformance (CoC) and test reports available upon request for critical-service applications
- Serialization and date codes verified against Bently Nevada production records where applicable
Procurement Process
- Confirm system compatibility – Verify your Proximitor model (3300 XL or legacy 3300) and total cable length requirement before ordering
- Submit inquiry or place order – Contact [email protected] or use the store checkout for standard configurations
- Lead time – In-stock units ship within 1–3 business days; expedited freight available on request
- Documentation package – CoC, packing list, and commercial invoice provided with every shipment
- After-sales support – Technical application support available via email or phone for installation and commissioning queries
Technical FAQ
Q: Can this probe be used with a 3300 XL Proximitor configured for standard voltage (Sv)?
A: No. The NSv probe is calibrated for the NSv Proximitor variant. Mixing Sv and NSv components will produce incorrect scale factors and must not be used in protection-critical applications.
Q: What is the maximum shaft runout this probe can tolerate?
A: The linear range is 0.25–2.54 mm. Total indicated runout (TIR) plus dynamic vibration amplitude must remain within this window to avoid signal clipping.
Q: Is the -CN suffix a functional difference or a regional designation?
A: The -CN suffix is a regional/market designation for the China-configured variant. Electrically and mechanically it is equivalent to the standard 330905-00-14-10-02-00, with localized documentation and cable termination.
Q: Do you supply the matching Proximitor and extension cable?
A: Yes. Contact us with your full system BOM and we will quote the complete matched set.
Q: What target materials are compatible?
A: The probe is factory-calibrated for AISI 4140 steel. Other alloys (stainless, titanium, Inconel) require a material correction factor — consult the Bently Nevada calibration data or contact our engineering team.
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