Bently Nevada 330171-00-20-90-02-CN – 3300 XL Proximity System Extension Cable for Reliable Vibration Monitoring

The Bently Nevada 330171-00-20-90-02-CN is an extension cable for the 3300 XL proximity transducer system. It’s typically used between the proximity probe and the Proximitor sensor to ensure accurate shaft vibration and position measurements on turbines, compressors, motors, and pumps. From my experience, this variant’s option set (20 ft length, armored build, and the “90” connector option) makes it a solid, plant-friendly choice where cable protection and tight routing are priorities.

Order Placement Process and Guarantees

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

Key Features

• Purpose-built for 3300 XL systems – Designed to work with Bently Nevada 3300 XL proximity probes and Proximitor sensors for dependable eddy-current measurements.
• 20 ft (6.1 m) cable length – A practical length for most cabinet-to-sensor runs, reducing excess slack and signal loss risk.
• Armored construction (Option “02”) – Typically a full-length stainless-steel overbraid or equivalent protection for harsh industrial routing and mechanical abrasion.
• Connector option “90” – In many cases denotes a right‑angle termination, making tight cabinet layouts and strain relief easier.
• Stable gap and signal fidelity – Coaxial build optimized for the probe system’s drive/return signals, helping maintain linearity and calibration.
• Chemical and temperature resilience – Jackets on this family are usually PFA-based, which stands up well to oils, most solvents, and elevated temperatures typical of rotating equipment bays.
• Drop-in compatibility – Minimizes commissioning time; no special tools beyond standard torque practices for the ClickLoc-type connectors.

Technical Specifications

Application Fields

Typically deployed in critical machinery protection loops where accurate proximity measurement is non‑negotiable:

• Steam and gas turbines (bearing and thrust position monitoring)
• Large compressors and expanders (radial vibration, shaft orbit)
• High‑speed motors, generators, and gearboxes
• Pumps and fans in petrochemical, power, and pulp & paper service

Advantages & Value for Procurement

• Assured compatibility – Reduces integration risk with existing 3300 XL probes and Proximitors.
• Rugged cabling – Armored option helps extend service life in abrasive or cable-tray installations.
• Installation flexibility – The “90” connector option seems to be favored in tight cabinets to keep bend radii under control.
• Lower downtime – Swap-in replacement minimizes calibration drift risk when matched to the correct probe/sensor pair.
• Predictable total cost – Standard lengths and options simplify spares strategies across multiple units and sites.

One thing I appreciate is how maintenance teams don’t have to overthink routing—an armored 20 ft cable tends to be the “just right” length on most skids. A customer in a gas compression plant mentioned they swapped to this exact option set after repeated tray abrasion issues; cable inspections dropped to routine visual checks only.

Installation & Maintenance

• Cabinet & routing – Use standard industrial cabinets; route the cable in protected trays or conduit. Keep it separated from high-voltage lines to minimize noise coupling.
• Bend radius – Maintain a gentle bend radius (especially near connectors). Armored versions typically need a larger radius than unarmored cable.
• Connector mating – Engage ClickLoc‑type connectors until fully seated; do not overtighten. Verify positive mechanical lock.
• Grounding – Follow site grounding practices for tray/conduit. Avoid ground loops in the measurement chain.
• Routine checks – Periodically inspect armor for kinks or crushed sections; confirm continuity if the cable has been mechanically stressed.
• Cleanliness – Wipe with a lint‑free cloth and compatible solvent. Avoid aggressive chemicals that may degrade jacket materials.
• Firmware/calibration – No calibration on the cable itself; keep the associated monitor/Proximitor firmware at recommended revisions for consistent system performance.
• Safety – De‑energize related monitoring circuits before disconnecting to prevent transient spikes into the measurement chain.

Quality & Certifications

• Manufacturing quality: Typically produced under ISO 9001 quality systems
• Compliance: CE and RoHS alignment for this product family is common
• Manufacturer warranty: Standard manufacturer warranty applies; our coverage is 365 days from delivery

Note: Exact connector geometry and jacket details follow the option codes in the part number. If you’re matching an existing probe/sensor pair, sharing the installed probe and Proximitor model codes helps us verify full compatibility before shipment.