Product Overview

The Bently Nevada 330930-065-03-00 is a high-precision extension cable designed exclusively for the 3300 NSv (Near Surface) Proximity Transducer System. This cable acts as the vital bridge between the proximity probe and the Proximitor sensor, ensuring the transmission of high-frequency eddy current signals with minimal attenuation. Engineered for tight-clearance environments and small shaft diameters, the NSv system provides critical vibration and position data where standard 8mm probes cannot fit. The 330930 series utilizes specialized coaxial shielding to reject electromagnetic interference (EMI), maintaining signal integrity in high-density industrial cabling environments. Whether deployed in centrifugal compressors or small scale turbines, this cable ensures your machinery protection system receives the accurate data required for Emergency Shutdown (ESD) logic and predictive maintenance.

Suffix Configuration Matrix

Bently Nevada utilizes a precise suffix-based system to define the mechanical and electrical characteristics of the 330930 extension cable.

Cable Length (-065)

Designates a total cable length of 6.5 meters (approximately 21.3 feet). This length is mathematically tuned to the system's electrical impedance to ensure the standard 7.87 V/mm (200 mV/mil) scale factor remains accurate across the full linear range.

Connector and Cable Option (-03)

Specifies the inclusion of a stainless steel armor jacket over the coaxial cable. This ruggedized layer provides superior mechanical protection against crushing, abrasion, and sharp-edged machine components found in internal bearing housings.

Agency Approval (-00)

Indicates a standard version without specialized regional hazardous area markings, though the base construction maintains high industrial compliance for temperature and chemical resistance.

Technical Matrix

Field Deployment Protocol

Technicians must prioritize the integrity of the ClickLoc connectors during installation. Always utilize a calibrated torque wrench or the Bently Nevada connector tool to ensure a secure fit without over-tightening. The minimum bend radius for armored cables is 25.4 mm (1 inch); exceeding this limit can damage the internal dielectric layer and cause signal "glitch" or impedance shifts. For hazardous area applications, ensure the connection point between the probe and extension cable is protected by a connector protector (teflon sleeve) and filled with silicone lubricant to prevent moisture ingress and ground loops.

Engineering Performance Advantages

The 330930-065-03-00 excels in high-temperature environments where standard cabling might degrade. Its FEP jacket and stainless steel armor resist corrosive synthetic lubricants and oil mists, ensuring a service life that matches the machine's overhaul cycle. The cable's low-capacitance design allows for seamless integration with the Bently Nevada 3500/42M monitoring system, providing high-resolution data to DCS platforms like Honeywell Experion PKS. By using genuine NSv cables, users eliminate the risk of "false trips" caused by mismatched electrical lengths or poor shielding.

Delivery Information

Delivery time: 3-5 days when payment finish, BY DHL/FEDEX/UPS.

Every cable is shipped in anti-static industrial packaging, factory-sealed to ensure the gold-plated connectors remain free of oxidation and debris.

Technical Support FAQ

Q1: Can I use this 6.5m cable with a 3300 XL 8mm probe?

A1: No. The 330930 is specifically tuned for the 3300 NSv system. Using it with an 8mm or 5mm XL probe will cause significant calibration errors and non-linear output.

Q2: What is the total system length when using a 6.5m extension cable?

A2: Typically, a 6.5m extension cable is paired with a 0.5m or 1.0m probe to reach a specific total electrical length (e.g., 7.0m or 7.5m). You must verify that your NSv Proximitor is calibrated for this specific total length.

Q3: Does the armor jacket protect against electromagnetic noise?

A3: While the armor provides mechanical protection, the primary EMI shielding is handled by the internal coaxial braid. However, the armor does provide an additional grounded layer that helps dissipate surface charges.