The Bently Nevada 330930-065-05-05 is a specialized extension cable designed for the 3300 XL NSv Proximity Transducer System. It is engineered for machinery with restrictive installation geometries, such as centrifugal air compressors, refrigeration units, and process gas compressors where standard 3300 XL 5mm or 8mm probe systems cannot be accommodated.

Features

• Optimized for tight installation requirements and small target applications.
• Average Scale Factor of 7.87 V/mm (200 mV/mil).
• Patented CableLoc design providing 220N (50 lbf) of pull strength.
• Enhanced chemical resistance compared to legacy 3300 RAM systems.
• Mechanically and electrically compatible with 3000-series and 7000-series 190 transducer systems.

Applications

• Radial vibration and radial position measurements on small shafts (less than 51mm).
• Axial (thrust) position measurements on flat targets smaller than 15mm.
• Tachometer and zero speed measurements.
• Phase reference (Keyphasor) signals on fluid-filmed bearing machines.

Technical Specifications

Installation Guidelines

• Ensure the system is powered down before connecting or disconnecting the extension cable to prevent signal noise or damage to the Proximitor sensor.
• Route cables away from high-EMI sources and high-voltage power lines to maintain signal integrity.
• The 3300 XL NSv system is calibrated for AISI 4140 steel targets; ensure target material compatibility to avoid measurement errors.
• For radial vibration, a typical gap setting of -9 Vdc is recommended.
• Use the integrated connector protector to maintain the integrity of the connection in harsh industrial environments.

FAQ

What is the function of the 330930-065-05-05 cable?

This cable acts as the critical link between the 3300 NSv proximity probe and the 3300 XL NSv Proximitor sensor, ensuring accurate signal transmission for vibration and position monitoring.

Is this cable compatible with older Bently Nevada systems?

Yes, the 330930 NSv series extension cables are designed to be mechanically and electrically interchangeable with previous 3300 RAM proximity probe and extension cable systems.

What is the primary advantage of the NSv system?

The NSv system provides a smaller footprint and enhanced side-view characteristics, making it the preferred solution for small-diameter shafts and limited-clearance installations where standard eddy current transducers are too large.