330854-040-24-00 3300 XL 25 mm Extension Cable | Bently Nevada

The Bently Nevada 330854-040-24-00, also cataloged as the 330854 Extension Cable, operates as a dedicated hardware component for signal transmission between proximity probes and Proximitor sensors within TSI platforms.

Suffix Breakdown & Model Matrix

• 330854: 3300 XL 25 mm Extension Cable base model.
• 040: 4.0 meters (13.1 feet) total length.
• 24: High Temperature FluidLoc cable configuration.
• 00: No agency approval required.

Hardware Specifications

Mechanical Monitoring and TSI Characteristics

The 330854 extension cable preserves the system impedance required for the 3300 XL transducer loop. Achieving precise gap voltage validation (targeting -10 VDC at the Proximitor output) is contingent upon the electrical integrity of this cable assembly. To ensure accurate rotor dynamics acquisition, the cable must be routed away from high-current conductors to facilitate effective cross-talk suppression. The FluidLoc construction provides a barrier against liquid ingress, maintaining signal stability in high-temperature industrial environments.

Frequently Asked Questions

Q: Can the 4.0 meter length of this extension cable be modified in the field?

A: No. The transducer system is calibrated as a matched set, including the probe, extension cable, and Proximitor. Modifying the cable length alters the electrical impedance, which degrades the frequency response and linearity of the displacement signal.

Q: What is the specific benefit of the "FluidLoc" cable option?

A: The FluidLoc cable is designed to prevent fluid migration through the internal cable construction, which protects the Proximitor and connector interfaces from contamination in environments where pressurized fluids are present.

Field Installation Guidelines

• Connector Engagement: Ensure ClickLoc connectors are fully seated and locked. Apply only hand-tight pressure; do not use pliers or heavy tools to tighten the coupling.
• Cable Bend Radius: Maintain a minimum bend radius of 25.4 mm (1.0 in) to prevent internal coaxial damage, which can lead to intermittent gap voltage readings.
• Shield Continuity: The cable shielding must remain continuous through the connector junction. Avoid crimping or crushing the cable jacket during installation.
• Grounding: To ensure signal integrity, maintain a low-impedance ground connection for the transducer system at the Proximitor mounting base.