Bently Nevada 330854-40-24-00 3300 XL 25 mm Extension Cable

Description

330854-40-24-00: 3300 XL 25 mm extension cable, featuring Option 40 for a 4.0-meter cable length, Option 24 for an unarmored high-temperature FluidLoc cable, and Option 00 representing the standard safe-area configuration without agency approvals. This specialized triaxial cable is designed to bridge Bently Nevada 330851 proximity probes and 330850 Proximitor sensors in large-target eddy-current measurement configurations, supporting differential expansion and shaft movement monitoring.

Unlike armored system variants (such as Option 25) which include a stainless steel outer armor sleeve, the Option 24 version utilizes a raw FluidLoc coaxial outer PFA jacket. This construction minimizes bulk and optimizes routing flexibility in protected conduit installations while maintaining moisture-resistant front and rear seals. The integrated high-temperature ClickLoc coaxial connectors ensure reliable low-resistance connections in harsh rotating machinery environments.

Features

• Cable Length: 4.0 meters (13.1 feet) total length (Option 40).
• Cable Type: Standard unarmored FluidLoc coaxial cable (Option 24) with a moisture-resistant perfluoroalkoxyethylene (PFA) jacket.
• Hazardous Area Approvals: Standard uncertified design (Option 00) for standard industrial applications.
• Low-Resistance Connectors: Gold-plated brass and gold-plated beryllium copper miniature ClickLoc connectors.
• Rugged Construction: Designed to withstand continuous high temperature exposures up to +200 degC (+392 degF).

Applications

The 3300 XL 25 mm transducer system is typically used in heavy-duty machinery for large-target displacement monitoring, particularly in steam turbine differential expansion and shaft position monitoring. Common installations include:

• Steam turbine thrust position monitoring
• Differential expansion and axial position measurement
• Rod-drop monitoring in reciprocating compressors
• Large-diameter shaft vibration analysis

Ordering Information

Technical Specifications

Installation Guidelines

To ensure proper performance and physical protection of the 3300 XL 25 mm extension cable, follow these engineering practices:

• Maintain the recommended minimum bend radius of 25.4 mm (1.0 in) along the entire cable path to prevent coaxial signal degradation or mechanical stress.
• Connectors should be kept dry and free from contaminants. Always install the provided connector protectors before routing or exposing the connections to industrial fluids.
• Tighten the coaxial ClickLoc connectors finger tight. Do not exceed the maximum rated connector-to-connector torque of 0.565 N-m (5 in-lb) to avoid damage to the gold-plated conductors.
• Route the unarmored cable within dedicated metallic conduits or protective trays to guard against environmental impact, abrasive contact, or crushing hazards inside the machine enclosure.

Compliance and Certifications

The standard system configuration complies with the European CE mark for electromagnetic compatibility (EMC). As an Option 00 configuration, this component is designed without hazardous area approvals and is intended for use in safe industrial zones.