Bently Nevada 330730-040-01-00 – 40 ft Extension Cable for Proximity Transducer Systems

The Bently Nevada 330730-040-01-00 is a factory-length extension cable, typically used to connect a 3300/3300 XL proximity probe to its Proximitor sensor. If you’re maintaining turbines, compressors, or large pumps, this is the kind of cable that quietly keeps the measurement chain stable—right impedance, clean signal, and the length you spec’d for proper system calibration. One thing I appreciate is how predictable these are in the field; when the length is matched, your gap and vibration readings tend to stay where they should.

Order Placement Process and Guarantees

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

Key Features

• Factory-matched length (40 ft) – Helps maintain system calibration when paired with the correct probe and Proximitor sensor.
• Low-noise signal path – Designed for stable eddy-current proximity measurements on critical rotating assets.
• Robust jacket for industrial use – Typically resistant to oils and plant environments; routing in conduit is supported in most installations.
• Proven compatibility – Commonly used across Bently Nevada 3300/3300 XL proximity transducer systems in turbines, compressors, and large motors.
• Service-friendly – Straightforward to route and secure; replacement doesn’t require rethinking your cabinet layout.

Technical Specifications

Application Fields

You’ll see this cable on critical rotating assets where proximity measurement matters:

• Steam and gas turbines (bearing vibration and shaft position monitoring)
• Centrifugal compressors and expanders
• Large motors, generators, and fans
• Pumps and gearboxes in chemical, oil & gas, and power sectors

Advantages & Value

• Reliability – Consistent system length supports accurate gap and vibration readings.
• Compatibility – Typically matches established 3300/3300 XL proximity systems, making MRO straightforward.
• Reduced downtime – Quick swap in the field; no re-engineering when the length and series fit.
• Procurement confidence – Traceable model code and 365-day warranty reduce project risk.

Installation & Maintenance

• Environment – Route in clean, dry conduit where possible; avoid high-EMI areas and sharp edges.
• Cabinet standards – Keep adequate ventilation around the Proximitor module; maintain proper grounding practices.
• Wiring – Maintain minimum bend radius (typically ≥10× cable OD) and secure strain relief at endpoints.
• Safety – De-energize associated monitoring circuits before connect/disconnect; follow site LOTO procedures.
• Maintenance – Periodically inspect for jacket abrasion, crushed sections, or loose connectors; verify system gap calibration after cable replacement.

Quality & Certifications

• Manufacturer standards: Typically compliant with CE and RoHS directives
• Production quality: Built under ISO 9001 quality systems (manufacturer)
• Warranty: 365 days (repair/replace policy)

From my experience, users often pair this length with standard 8 mm probe setups and get repeatable results without re-calibrating the entire loop. If you’re matching an existing install, double-check the probe and Proximitor part numbers against this 40 ft cable length—getting the system length right tends to save a lot of time during startup.