Bently Nevada 330780-90-00 – 9 m Extension Cable for 3300/3300 XL Proximity Transducer Systems

The Bently Nevada 330780-90-00 is, in most cases, used as a factory-terminated extension cable for 3300/3300 XL proximity transducer systems. If you’re maintaining turbines, compressors, or critical pumps, this cable bridges the probe and Proximitor sensor with stable, low-noise transmission. One thing I appreciate is how predictable the system performance is when you use a matched-length cable—signal accuracy typically stays right where it should be over long runs and tough environments.

Company’s Order Placement Process and Guarantees

• Warranty: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
• Payment: 50% advance payment, full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• 9.0 m system length – The “-90” build typically indicates a 9.0 m cable, helping you match total transducer system length for proper calibration.
• Optimized for proximity signals – Designed for eddy-current probe signals used in vibration and shaft position monitoring.
• Factory-molded terminations – Consistent shielding and strain relief reduce noise ingress and intermittent faults.
• Drop-in compatibility – Works with common Bently Nevada 3300/3300 XL probes and Proximitor sensors when configured for the same system length.
• Rugged jacket options – In many cases supplied with industrial-grade insulation that handles oil, heat, and tight routing better than generic cables.
• Service-friendly – From my experience, replacing a worn extension cable often restores signal quality without touching the probe or proximitor.

Technical Specifications

Application Fields

Typically deployed in rotating machinery condition monitoring:

• Steam and gas turbines – shaft vibration and axial position
• Compressors and expanders – radial vibration on fluid-film bearings
• Large motors, generators, and pumps – bearing condition and alignment checks
• Refining, petrochemical, and power plants – where cable robustness and signal stability matter

Advantages & Value

• Compatibility you can trust – Pairs with common Bently Nevada 3300/3300 XL probes and Proximitor sensors when the system length is matched.
• Signal integrity – Proper capacitance and shielding help preserve calibration, especially on long runs near drives or MCCs.
• Lower lifecycle cost – Replacing the cable alone can restore measurement fidelity without touching the probe in the machine.
• Procurement simplicity – Standardized length code (“-90”) makes it straightforward to match spares to installed systems.
• Support for MRO teams – Technicians typically report faster turnarounds when they keep a few matched-length cables on hand.

Installation & Maintenance

• Cabinet & routing – Run in grounded metal conduit or tray. Keep separation from VFD outputs and high-voltage lines to limit EMI.
• Bend radius – Maintain a conservative bend radius (often ≥10× cable OD). Avoid pinch points at gland plates.
• System length – Match probe + extension cable to the Proximitor’s specified system length; mixing lengths can shift scale factors.
• Connections – Inspect connectors for contamination; reseat until fully engaged. Lightly clean with electronics-safe solvent if needed.
• Routine checks – During outages, verify insulation condition and continuity. If signals seem noisy, the cable is, in many cases, the quickest swap.

Quality & Certifications

• Quality system: Manufactured under ISO 9001 quality management (typical for the series)
• CE / RoHS: Conforms where applicable for low-voltage passive cabling
• Warranty: 365 days (provided by us)

Related/Supporting Components

You might pair the 330780-90-00 with compatible Bently Nevada 3300/3300 XL proximity probes and Proximitor sensors (for example, standard 8 mm systems) as long as the total system length matches. That’s usually the key to keeping calibration spot on.

Note: Specifications above reflect typical usage of the 330780-90-00 as an extension cable within the 3300/3300 XL ecosystem. If your installed base has special jackets or armored builds, share the full part string on the tag and we’ll verify compatibility before shipment.