Bently Nevada 330130-040-03-CN Extension Cable | 3300 Series Proximity Probe System
Engineering Background: The Bently Nevada 3300 Series is the industry benchmark for continuous vibration monitoring in rotating machinery — turbines, compressors, pumps, and motors operating in critical process environments. The extension cable is the precision signal conduit between the proximity probe and the proximitor/driver, and its electrical characteristics directly determine measurement accuracy.
Product Positioning: The 330130-040-03-CN is a factory-specified 4-meter (40 dm) extension cable engineered for the 3300 XL 8mm proximity probe system. The -CN suffix designates the Chinese market connector configuration, ensuring direct compatibility with CN-standard proximitor inputs. This cable maintains the precise capacitance, inductance, and impedance values required for gap voltage linearity across the full operating range.
Complete Technical Specifications
- Part Number: 330130-040-03-CN
- Manufacturer: Bently Nevada (Baker Hughes)
- Series: 3300 XL 8mm Proximity Probe System
- Cable Length: 4.0 m (40 dm)
- Connector Type: CN (Chinese market standard)
- Cable Construction: Coaxial, low-loss, shielded
- Characteristic Impedance: 95 Ω ± 5%
- Capacitance: Matched to 3300 XL system specification
- Temperature Range: -40°C to +125°C
- Jacket Material: Fluoropolymer (PTFE-rated)
- Shielding: Double-braided, 95% coverage
- Weight: ~4,460 g (with connectors and packaging)
- Compliance: API 670, CE
- Country of Origin: USA / Authorized OEM Supply Chain
Proven Application Environments
- Steam and gas turbine shaft vibration monitoring
- Centrifugal compressor radial and axial displacement measurement
- Boiler feed pump and cooling water pump protection systems
- Petrochemical plant rotating equipment per API 670
- Power generation — nuclear, thermal, and combined-cycle plants
- Marine propulsion shaft monitoring systems
- Offshore platform critical machinery protection
Engineering Advantages
- System-Matched Impedance: Factory-calibrated to maintain gap voltage linearity; no field trimming required.
- CN Connector Compatibility: Direct plug-in to CN-standard proximitor inputs — eliminates adapter losses and connector mismatch errors.
- Low-Loss Coaxial Construction: Minimizes signal attenuation over the 4 m run, preserving µm-level displacement resolution.
- High-Temperature Fluoropolymer Jacket: Rated to +125°C; suitable for hot-section turbine enclosures and steam environments.
- Double-Braided Shield: 95% coverage suppresses EMI/RFI from VFDs, switchgear, and high-current bus bars common in industrial plants.
- OEM Dimensional Compliance: Identical form factor to original Bently Nevada supply — drop-in replacement with zero re-calibration.
System Architecture & Signal Flow
In a complete 3300 XL proximity probe system, the signal chain is:
Proximity Probe (330104 / 330105) → Extension Cable 330130-040-03-CN → Proximitor / Driver (3300 XL) → Monitor (3500 / 3300)
The extension cable carries the RF oscillator signal from the proximitor to the probe tip, and returns the demodulated DC gap voltage back to the proximitor. Any impedance discontinuity in this cable introduces a static gap error and degrades dynamic sensitivity. The 330130-040-03-CN is manufactured to eliminate this risk.
Sourcing & Quality Verification
- Source: Authorized distribution channel and verified surplus OEM stock
- Inspection: Each unit inspected for connector integrity, jacket continuity, and shield coverage before shipment
- Documentation: Certificate of conformance available upon request
- Traceability: Lot and date code records maintained for 5 years
- Counterfeit Risk Mitigation: All stock sourced from traceable supply chains; physical markings verified against Bently Nevada OEM standards
Procurement Process
- Lead Time: In-stock items ship within 1–3 business days; ex-stock China warehouse
- MOQ: 1 piece
- Payment: T/T, L/C, PayPal, credit card accepted
- Export: DDP / DAP available; full customs documentation provided
- Warranty: 12 months from date of shipment
- RFQ: Contact support@konmask.com with quantity and delivery requirements
Technical FAQ
Q: Can the 330130-040-03-CN be used with the 3500 Series monitor?
A: Yes. The 3300 XL probe system (probe + extension cable + proximitor) is fully compatible as a subsystem input to the 3500 Series monitors when the proximitor output is within the 3500 input specification.
Q: What is the difference between -03-CN and -03-00?
A: The -CN suffix designates the Chinese market connector configuration. The -00 suffix is the standard international connector. Verify your proximitor input connector type before ordering.
Q: Can I extend the cable beyond 4 m by splicing?
A: No. Splicing introduces impedance discontinuities that corrupt the gap voltage signal. Use the correct length cable (e.g., 330130-080-03-CN for 8 m) as a single factory assembly.
Q: Is this cable compatible with the 7200 Series probes?
A: No. The 7200 Series uses a different impedance specification. Use 330130 cables only with 3300 XL 8mm probe systems.
Q: Do you provide calibration certificates?
A: A certificate of conformance is available. Full calibration certificates are available for new OEM stock upon request at time of order.
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