Bently Nevada 330930-065-02-00 3300 NSv Extension Cable

Description

Bently Nevada 330930-065-02-00 specifies a 6.5-meter standard 75-ohm coaxial extension cable protected by flexible stainless steel armor and supplied with no agency approvals.

This cable acts as the electrical link between a 3300 NSv proximity probe and a 330980 Proximitor sensor. The total combined length of the extension cable and probe must equal the rated system length of the Proximitor sensor (either 5.0 or 7.0 meters). While other variants may incorporate FEP jackets or connector protectors (such as Option 01 or Option 04), Option 02 provides uncoated stainless steel armor to offer mechanical wear resistance in tight, dry machine housings.

Features

• Cable length of 6.5 meters (21.3 feet) to complete a 7.0-meter transducer system when paired with a 0.5-meter probe.
• Flexible AISI 302 stainless steel armor without an outer FEP jacket, providing rugged protection against abrasion and physical impacts.
• ClickLoc miniature coaxial connectors on both ends for a secure, low-resistance connection that prevents accidental disconnection.
• 75-ohm coaxial construction insulated with fluoroethylene propylene (FEP) for high-temperature and chemical exposure resistance.
• Option 00 configuration is supplied with no agency approval requirement, ideal for general-purpose or non-hazardous industrial environments.

Applications

The 3300 NSv transducer system, including the 330930 extension cable, is used for non-contact shaft vibration and position monitoring in tight spaces or where target geometry is limited. Typical applications include:

• Power generation and industrial gas turbines
• High-speed turbomachinery and compressors
• Small-bore machinery with tight clearances or small shaft diameters (under 20 mm)
• Aeroderivative gas turbine installations
• Centrifugal and axial blowers

Ordering Information

Technical Specifications

Installation Guidelines

To ensure proper operation of the 3300 NSv Transducer System, follow these mechanical and electrical installation practices:

• Grounding: Shield grounding must be terminated at the Proximitor sensor end only to prevent ground loops.
• Torque Limits: Hand-tighten the miniature coaxial ClickLoc connectors, then tighten to a maximum recommended torque of 0.56 Nm (5 in-lb). Do not use aggressive clamping tools.
• Routing and Bends: Maintain a bend radius of at least 25.4 mm (1.0 in) throughout the cable run. Avoid routing over sharp metal edges or high-temperature steam paths.
• Protective Tape: For connections exposed to grease, oil, or wet conditions, wrap the connector joint with silicone self-fusing tape (such as accessory 03200006) to prevent ingress.