Bently Nevada 330930-045-00-00 – Proximity Extension Cable | 3300 NSv Platform
Engineering Background: The Bently Nevada 3300 NSv (Non-contact Vibration) system is the industry benchmark for continuous machinery protection in rotating equipment applications. Designed for turbines, compressors, pumps, and motors, the 3300 NSv platform delivers sub-micron resolution vibration and position measurements critical to predictive maintenance programs in oil & gas, power generation, and petrochemical industries.
Product Positioning: The 330930-045-00-00 is the OEM-specified 45 cm (18-inch) extension cable engineered to bridge the Proximitor® sensor and the field-mounted transducer in the 3300 NSv eddy-current measurement chain. It maintains the calibrated system impedance and signal integrity required for API 670-compliant installations. Procurement engineers specify this cable when the standard transducer cable length is insufficient for panel-to-machine routing or when replacing degraded field cables without disturbing the sensor calibration.
Complete Technical Specifications
- Part Number: 330930-045-00-00
- Manufacturer: Bently Nevada (Baker Hughes)
- Series / Platform: 3300 NSv Proximity System
- Cable Type: Proximitor® Extension Cable
- Nominal Length: 45 cm (≈ 18 in)
- Compatible Sensors: 3300 XL 8mm, 3300 XL 11mm, 3300 NSv Proximity Transducers
- Compatible Proximitors: 3300 XL NSv Proximitor® Sensors (330180, 330181 series)
- Connector Type: Coaxial, factory-terminated, MIL-spec locking
- Cable Impedance: Matched to 3300 NSv system calibration (50 Ω characteristic)
- Operating Temperature: –50 °C to +120 °C
- Ingress Protection: IP67 (connector assembly)
- Compliance: API 670 (4th & 5th Edition), CE
- Weight: ≈ 400 g
- Country of Origin: USA
Proven Application Environments
- Steam and gas turbine shaft vibration & axial position monitoring
- Centrifugal and reciprocating compressor radial vibration measurement
- Boiler feed pump and cooling water pump protection systems
- Offshore platform rotating machinery (ATEX/IECEx zone-rated installations)
- Refinery and petrochemical plant continuous machinery monitoring
- Power generation (nuclear, thermal, combined-cycle) turbine protection
Engineering Advantages
- Calibration Integrity: Factory-matched impedance preserves the 3300 NSv system’s gap voltage–to–displacement calibration curve without field re-calibration.
- Signal Fidelity: Low-loss coaxial construction minimises capacitive loading, ensuring flat frequency response from DC to >10 kHz for accurate 1× and 2× vibration analysis.
- Harsh-Environment Durability: Oil-resistant outer jacket and stainless-steel armoured connectors withstand continuous exposure to lubricating oil mist, steam condensate, and mechanical vibration.
- Drop-in Replacement: Identical form, fit, and function to OEM-installed cables; no firmware changes or monitor reconfiguration required.
- Reduced Downtime: Pre-terminated and tested at the factory — field installation is a single connector swap, minimising planned outage duration.
System Architecture & Signal Flow
In a standard 3300 NSv measurement chain the signal path is:
Eddy-Current Probe (tip) → Integral Cable → [330930-045-00-00 Extension Cable] → Proximitor® Sensor → 3300 NSv Monitor Module → DCS / Safety System
The extension cable occupies the segment between the integral probe cable and the Proximitor® sensor housing. Its matched impedance ensures the oscillator circuit within the Proximitor® sees the correct total cable capacitance, maintaining the –18 V DC gap voltage reference and the 200 mV/mil (7.87 V/mm) scale factor specified in the system calibration certificate.
Sourcing & Quality Verification
- Source: Konmask.com sources 330930-045-00-00 from authorised Bently Nevada / Baker Hughes distribution channels and verified surplus OEM inventory with full traceability documentation.
- Inspection: Each unit undergoes visual inspection, connector continuity check, and impedance verification prior to shipment.
- Documentation: Certificate of Conformance (CoC) and original manufacturer datasheet available upon request.
- Packaging: Anti-static bag + foam-lined carton; original OEM packaging where available.
Procurement Process
- Lead Time: In-stock units ship within 1–3 business days; contact us for volume orders or expedited requirements.
- MOQ: 1 piece.
- Payment: T/T, PayPal, credit card, and corporate PO (approved accounts).
- Export: Worldwide shipping; export documentation (commercial invoice, packing list, COO) provided for customs clearance.
- RFQ: Email support@konmask.com with quantity, delivery address, and required delivery date.
Technical FAQ
Q: Can I use 330930-045-00-00 with a 3300 XL 5mm probe system?
A: No. The 3300 NSv extension cables are calibrated for 8 mm and 11 mm probe systems. Using a mismatched cable will shift the gap voltage calibration and produce erroneous vibration readings.
Q: What is the maximum total cable length (integral + extension) for a 3300 NSv system?
A: Bently Nevada specifies a maximum total cable assembly length of 9 m (30 ft) for standard 3300 NSv configurations. Exceeding this limit requires a custom-calibrated system.
Q: Is this cable interchangeable with the 330130 series extension cables?
A: No. The 330930 series is specific to the 3300 NSv platform. The 330130 series is designed for the 3300 XL standard (non-NSv) Proximitor® systems. Mixing series will cause calibration errors.
Q: Do you provide installation support?
A: Yes. Our engineering team can provide wiring diagrams, system architecture guidance, and remote commissioning support. Contact support@konmask.com.
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