Description

The Bently Nevada 330877-080-36-00, also cataloged as the 330877 Extension Cable, operates as a dedicated hardware component for radio frequency signal transmission within Bently Nevada 3300 XL 50 mm Proximity Transducer System platforms. The cable balances specific capacitive and inductive variables between a 50 mm eddy-current probe and a 3300 XL Proximitor sensor, enabling high-range differential expansion or rotor growth tracking without introducing phase or impedance distortion.

Suffix Breakdown & Model Matrix

• 330877: Base model number for the 3300 XL 50 mm Extension Cable.
• -080: Cable length option designating 8.0 meters (26.2 feet) of physical length.
• -36: Armor and cable option specifying an unarmored FluidLoc triaxial cable format designed to mitigate oil migration along the internal layers.
• -00: Agency approval option specifying standard configuration with no hazardous area certifications.

Hardware Specifications

Transducer Interface & Mechanical Monitoring Characteristics

This passive extension link maintains the total electrical length verification required to preserve precise eddy-current probe scaling configurations over an extended 27.9 mm linear range. The specialized PFA insulation matrix achieves critical gap voltage validation (-10 VDC targets) by preventing impedance degradation when submersed in hot synthetic lubricants. Furthermore, the triaxial architecture provides native cross-talk suppression and radio frequency shield boundary isolation, containing the high-frequency carrier wave from bleeding into adjacent sensor networks monitoring large steam turbine rotor dynamics.

Frequently Asked Questions

Q: Can this 8.0-meter extension cable be paired with a standard 1.0-meter 50 mm probe head configuration?

A: Yes, because the total calibrated system length must measure precisely 9.0 meters. Joining the 8.0-meter extension cable assembly to a 1.0-meter integrated probe lead establishes the targeted electrical length required by the Proximitor loop matching architecture.

Q: What specific field protection does the FluidLoc option suffix introduce over baseline coaxial cables?

A: The FluidLoc configuration utilizes internal structural blocking agents within the braided copper shielding and core dielectric layers. This block stops high-pressure machine oil from wicking through the hollow spaces of the cable run into external termination boxes.

Field Installation Guidelines

1. Clean the gold-plated male and female ClickLoc terminal surfaces using a zero-residue electronic contact solvent before mating.
2. Align the connector bodies along a straight physical axis and compress them until an audible mechanical click verifies full engagement.
3. Observe a minimum physical installation bend radius constraint of 25.4 mm during layout to avoid creating localized capacitance spikes inside the PFA core.
4. Route the raw unarmored FEP outer jacket inside dedicated steel conduit runs to safeguard the analog signal line against mechanical shear forces on the turbine deck.