Description

The Bently Nevada 1X35668, also cataloged as the 1X35668 Extension Cable, operates as a dedicated hardware component for proximity probe signal conditioning within 3300 XL NSv Proximity Transducer Systems. Specifically, the balanced coaxial physical line transmits high-frequency radio frequency (RF) signals between a 3300 NSv proximity probe tip and a 3300 XL NSv Proximitor Sensor. Because it maintains strict electrical impedance matching, the cable delivers raw micro-displacement data without signal degradation. Consequently, this transmission enables the Proximitor to calculate precise shaft rotating speed, axial position, and dynamic radial vibration on machinery with tight installation constraints.

Hardware Specifications

Mechanical Monitoring & TSI Characterization

The physical construction of the cable relies on specific calibration for eddy-current probe scaling to ensure precise voltage-to-displacement transformation. During system installation, technicians adjust the position of the probe target until the gap voltage validation achieves the required -10 VDC targets. This voltage matches the physical midpoint of the calibrated linear range. Meanwhile, the specialized coaxial shielding layer provides effective cross-talk suppression by blocking parasitic electromagnetic fields from nearby rotating machinery components. As a result, the low-loss physical layer transfers uncorrupted rotor dynamics directly to the Proximitor sensor, stabilizing critical machinery protection metrics on fluid-filmed bearing systems.

Frequently Asked Questions

Q: How do ClickLoc connectors on the 1X35668 cable prevent mechanical connection loosening?

A: The ClickLoc coaxial connectors utilize a positive-locking mechanism. When technicians fully seat the male and female interfaces, the internal detents audibly click into a locked position. This mechanical engagement prevents separation caused by continuous machine deck vibration.

Q: Does trimming or altering the physical length of the 1X35668 extension cable affect system performance?

A: Yes, operators must never cut or modify the physical length of the cable. The Proximitor sensor relies on a precise overall electrical length to maintain its calibrated Average Scale Factor of 7.87 V/mm (200 mV/mil). Therefore, altering the length shifts the system capacitance and invalidates the vibration measurements.

Field Installation Guidelines

• Minimum Bend Radius Constraints: Route the cable carefully during installation, maintaining a minimum static bend radius of 25.4 mm. Sharp bends kink the inner coaxial conductor, which alters the circuit impedance and induces measurement errors.

• Connector Environmental Protection: Protect the ClickLoc connections by installing a clean, dry silicone connector protector sleeve over the mated pair. This prevents penetration from synthetic lubricating oils, cutting fluids, and moisture.

• Conduit Isolation Procedures: Run the extension cable through a dedicated, grounded metal conduit or tray. Furthermore, isolate this routing from high-current AC power distribution cables to suppress external electrical noise injection.

• Terminal Coupling Torque: Connect the ClickLoc terminals using finger-tight force until they lock into place. Technicians must not apply pliers or mechanical tools to the miniature coaxial connectors, as excessive torque will crush the internal dielectric layer.