Bently Nevada 330930-060-03-05 3300 NSv Extension Cable

Description

330930-060-03-05 specifies this 3300 NSv extension cable configuration, featuring a 6.0-meter length, no stainless steel armor, an integrated connector protector, and multiple hazardous area approvals. This industrial coaxial cable provides the critical connection between a 3300 NSv proximity probe and a 3300 XL NSv Proximitor sensor. It is engineered to transmit high-frequency eddy-current signals with minimal attenuation, maintaining calibrated system impedance for high-accuracy non-contact displacement measurements.

The 3300 XL NSv transducer system is intended for rotating machinery with narrow target areas or restricted installation clearances, such as aeroderivative gas turbines, high-speed compressors, and small-bore pump shafts. This specific unarmored extension cable integrates a durable fluorosilicone connector protector that isolates the miniature ClickLoc coaxial connection from moisture, grease, and industrial cutting fluids, preventing impedance changes or signal dropouts.

Features

• Precise 6.0-Meter Length: Option 060 provides a 6.0-meter (19.7 feet) physical length to span distance between the machine casing and local junction boxes without excess slack.
• Unarmored Design with Connector Protector: Option 03 designates a flexible, lightweight coaxial cable without rigid metal armoring, combined with a pre-installed protective sleeve to seal the connection points.
• Multiple Hazardous Area Approvals: Option 05 qualifies the cable assembly for global safety certifications, including ATEX, IECEx, and CSA ratings for explosive or hazardous environments.
• Impedance-Matched 75-Ohm Design: Standardizes transmission characteristics to eliminate signal reflection and support high-fidelity vibration and axial position measurements.
• ClickLoc Coaxial Connectors: Corrosion-resistant, gold-plated brass connectors establish a positive lock that withstands persistent machine vibrations.

Applications

• Shaft vibration and axial position monitoring on high-speed aeroderivative gas turbines.
• Radial dynamic motion measurements on small-bore machinery with narrow shaft targets.
• Vibration monitoring on centrifugal compressors and high-speed turbopumps.
• Restricted-clearance machinery installations where rigid stainless steel armor is not required.

Ordering Information

Technical Specifications

Installation Guidelines

• System Length Match: Ensure that the combined physical length of the proximity probe and this extension cable matches the exact system length of the Proximitor sensor (typically 5.0 meters or 7.0 meters).
• Connector Cleanliness: Keep the miniature coaxial connectors clean and free of oil, water, and contaminants prior to mating. Moisture or debris inside the connector will degrade system calibration.
• Connector Torque: ClickLoc coaxial connectors must be joined finger-tight. The maximum rated torque limit is 0.56 Nm (5 in-lb) to prevent damage to the gold-plated contacts.
• Routing and Bend Limits: Route the cable through protective conduit or cable trays where possible. Maintain a minimum bend radius of 25.4 mm (1.0 in) during installation to prevent internal conductor breakage.
• Connector Protection: Ensure the option 03 connector protector is fully seated over the connection point to isolate the mated junction from surrounding environmental spray.

Compliance and Certifications