Bently Nevada 330903-00-08-10-02-05/CN – 3300 NSv Extension Cable | 3300 Series Vibration Monitoring Platform
The Bently Nevada 330903-00-08-10-02-05/CN is a precision-engineered extension cable designed exclusively for the 3300 NSv (Non-contacting Vibration) monitoring system. Serving as the critical signal conduit between the proximity probe and the proximitor/monitor rack, this cable maintains signal integrity across demanding industrial environments. Konmask.com supplies this part as a verified OEM component, fully traceable and ready for immediate deployment in rotating machinery protection systems.
Product Positioning: This extension cable is a mandatory interface component in Bently Nevada 3300 Series eddy-current measurement chains. It is specified by OEM documentation for use with 330900-series probes and 3300 XL/NSv proximitors, ensuring calibrated system performance without field re-ranging.
Complete Technical Specifications
- Part Number: 330903-00-08-10-02-05/CN
- Series / Platform: Bently Nevada 3300 NSv (Non-contacting Vibration)
- Cable Length: 8 m (26.2 ft) — suffix -08
- Probe Compatibility: 330900-series proximity probes (7.87 mm / 5 mm tip diameter)
- Proximitor Compatibility: 3300 XL 8mm Proximitor, 3300 NSv Proximitor
- Connector Type: Coaxial, factory-terminated, impedance-matched
- Cable Construction: Low-loss coaxial, double-shielded, armored jacket
- Temperature Range: –55 °C to +125 °C (–67 °F to +257 °F)
- Ingress Protection: IP67 connector sealing
- Approvals / Certifications: CE, CSA, FM (per 3300 system certification)
- Country of Origin: CN (China — OEM-authorized production)
- Weight: ~40 g (cable assembly)
- Replacement / Cross-reference: 330903-00-08-10-02-05
Proven Application Environments
- Gas Turbines & Steam Turbines: Shaft radial vibration and axial position monitoring
- Centrifugal Compressors: Rotor dynamic measurement in API 670-compliant installations
- Pumps & Motors: Bearing housing vibration trending in continuous process plants
- Petrochemical & Refinery: Hazardous-area installations requiring certified cable assemblies
- Power Generation: Generator rotor eccentricity and differential expansion measurement
- Marine & Offshore: Vibration monitoring on propulsion and auxiliary machinery
Engineering Advantages
- Factory-Calibrated System Matching: Pre-terminated to OEM specifications — no field calibration required when replacing like-for-like
- Signal Integrity: Double-shielded coaxial construction eliminates EMI/RFI interference in high-noise industrial environments
- Plug-and-Play Replacement: Direct drop-in for existing 330903-series cables; maintains system sensitivity scale factor (200 mV/mil)
- Harsh Environment Rated: IP67 connectors and armored jacket withstand oil mist, vibration, and thermal cycling
- Reduced Downtime: Stocked and ready-to-ship — minimizes planned maintenance windows and emergency shutdown duration
System Architecture & Signal Flow
The 3300 NSv eddy-current measurement chain consists of three elements: Proximity Probe → Extension Cable → Proximitor/Monitor. The 330903-00-08-10-02-05/CN occupies the middle link, transmitting the raw oscillator signal from the probe tip to the proximitor with minimal attenuation. The cable’s characteristic impedance is matched to the 3300 system’s oscillator frequency (~1 MHz), ensuring the gap voltage output remains within the ±24 VDC linear range specified in Bently Nevada System 1 and 3500 rack integrations.
Typical chain: 330900-xx Probe + 330903-00-08-10-02-05/CN Extension Cable + 3300 XL 8mm Proximitor → 3500/40M or 3300 Monitor Card
Sourcing & Quality Verification
- All units sourced through authorized distribution channels or verified surplus with full traceability documentation
- Pre-shipment inspection: visual, dimensional, and continuity/impedance verification
- Packaging: anti-static bag + foam-lined carton with part label and lot traceability
- Certificate of Conformance (CoC) available upon request
- Lead time: in-stock units ship within 1–3 business days; ETA confirmed at order
Procurement Process
- Submit RFQ via support@konmask.com or place order directly on Konmask.com
- Receive order confirmation with stock status and estimated ship date within 24 hours
- Pre-shipment inspection report and CoC issued upon request
- Worldwide shipping via DHL / FedEx / UPS with full tracking
- Post-delivery technical support available for installation verification
Technical FAQ
Q: Can this cable be used with 3500-series monitors?
A: Yes. The 330903 extension cable is compatible with any Bently Nevada system using 3300 NSv-calibrated probe/proximitor pairs, including 3500/40M and 3500/42M monitor cards.
Q: What is the maximum total cable length for the measurement chain?
A: Bently Nevada specifies a maximum combined probe + extension cable length. For 8 m extension cables, the probe cable is typically 0.5 m, giving a 8.5 m total — within the 9 m system limit for standard configurations.
Q: Is the /CN suffix a different specification from the standard part?
A: The /CN suffix denotes the country-of-origin designation (China) for customs and export documentation purposes. The electrical and mechanical specification is identical to the base part number 330903-00-08-10-02-05.
Q: Do you provide installation support?
A: Yes. Konmask technical advisors can assist with cable routing, connector torque specifications, and system commissioning verification. Contact support@konmask.com.
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