Bently Nevada 330780-90-05 – Extension Cable for 3300 XL Proximity Transducer Systems

The Bently Nevada 330780-90-05 is an OEM extension cable designed for 3300 XL proximity probe systems. From my experience, this series is typically selected when you need a robust, factory-calibrated link between the 3300 XL probe and its Proximitor sensor in tight routing spaces. It seems to be the go‑to choice for machinery protection loops on critical rotating assets—compressors, turbines, large motors—where signal integrity and mechanical reliability really matter.

Company’s 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 payment before delivery
• Express delivery: FedEx, UPS, DHL

Key Features

• Engineered for 3300 XL proximity systems – Provides the matched cable path between Bently 3300 XL probes and Proximitor sensors to maintain calibration.
• ClickLoc-style secure connectors – Positive locking helps prevent loosening under vibration, which is common around high-speed rotating equipment.
• Low-noise coax construction – Typically double-shielded to preserve the eddy-current signal and reduce electrical interference in industrial environments.
• Right‑angle hardware option – The “-90-05” variant is commonly specified for tight routing or shallow junction boxes where a straight connector would be stressed.
• Rugged jacket for plant conditions – Designed for oil & gas, petrochemical, and power applications where temperature and chemical resistance are important.
• Service-friendly – Simple to replace in the field without special tools; you might notice quicker turnaround during shutdowns.

Technical Specifications

Application Fields

You’ll typically see the 330780 series used anywhere 3300 XL proximity monitoring is installed:

• Oil & Gas: Gas compressors, turboexpanders, crude pumps
• Power Generation: Steam and gas turbines, generator bearings
• Petrochemical & Refining: Process pumps, blowers, agitators
• Metals & Mining: Large mill motors and fans
• Pulp & Paper / Water: Critical pump trains with vibration protection

Advantages & Value

• Reliability under vibration – The locking connector design helps prevent intermittent faults that are hard to trace during outages.
• System compatibility – Factory-matched characteristics help keep the 3300 XL system within spec without re-engineering the measurement loop.
• Cost control – Using the correct cable often saves costly troubleshooting hours and avoids nuisance trips tied to noisy signals.
• Lifecycle support – Ready availability and drop-in replacement reduce downtime risk; we typically ship stocked builds within a week.

A maintenance lead at a refinery told us that replacing a mixed, third-party cable with the 330780 eliminated intermittent spikes on a turbine proximity channel. Noise floor dropped immediately, and they’ve left that loop untouched for two turnarounds now.

Installation & Maintenance

• Cabinet & routing: Route in grounded metallic conduit or tray where possible; segregate from high‑voltage and VFD cabling to reduce EMI.
• Bend radius: Avoid sharp bends; keep ≥ 25 mm radius to protect the dielectric and shielding.
• Strain relief: Use clamps near terminations; the right‑angle connector option helps where clearance is tight.
• Connections: Hand‑tighten ClickLoc connectors until locked; do not over‑torque. Inspect o-rings and mating surfaces for contamination.
• Routine checks: During outages, visually inspect the jacket, verify continuity, and confirm the total system length matches the Proximitor setup.
• Calibration: After any cable change, it’s good practice to verify transducer system response at the monitor—especially on protection channels.

Quality & Certifications

• Typically CE and RoHS compliant as part of the Bently Nevada transducer system
• Meets industrial EMC practices when routed and grounded correctly
• Manufacturer’s standard quality system (ISO-based production controls)
• Warranty: 365-day warranty provided by us on supply

Supporting Components (Common Pairings)

• Bently Nevada 3300 XL Proximity Probes (e.g., 330103, 330104, 330105 families)
• Bently Nevada 3300 XL Proximitor Sensors (matching the selected probe/system length)
• Rack or distributed monitoring systems that accept 3300 XL transducer inputs