Bently Nevada 330130-040-12-00 3300 XL Extension Cables

Bently Nevada 330130-040-12-00 3300 XL Standard Extension Cable

The Bently Nevada 330130-040-12-00, also cataloged as the 330130 3300 XL Standard Extension Cable, operates as a dedicated hardware component for signal transmission between proximity probes and Proximitor Sensors within TSI platforms.

Suffix Breakdown & Model Matrix

Hardware Specifications

Eddy-Current Signal Integrity and Rotor Dynamics Coupling

The 330130 extension cable transfers radio frequency (RF) excitation signals and gap-proportional capacitance/inductance changes between the probe and Proximitor Sensor. Consequently, maintaining precise electrical length and matched characteristic impedance prevents signal attenuation along the sensor loop. This constant capacitance matching enables accurate eddy-current probe scaling across the transducer linear range.

During field configuration, technicians verify gap voltage validation (-10 VDC targets) at the Proximitor output terminals to establish the physical center of the probe measurement envelope. Thus, the cable preserves dynamic signal fidelity, suppresses high-frequency noise, and prevents cross-talk suppression degradation across adjacent channels during high-velocity rotor dynamics events.

Frequently Asked Questions

Q: How does the FluidLoc option prevent oil ingress inside fluid-film bearing housings?

A: The FluidLoc connector integrates an internal silicone elastomer seal inside the coaxial joint. As a result, it prevents liquid oil from wicking through the cable core into the external junction box.

Q: Can field technicians trim or splice the 4.0-meter extension cable to custom lengths?

A: No, field engineers must never cut or splice transducer cables. Altering the total physical length changes the loop capacitance, which destroys system calibration and shifts the scale factor away from standard 200 mV/mil settings.

Field Installation Guidelines

Installers must route the extension cable inside dedicated metallic conduit or protective cable trays. Furthermore, avoid sharp bends by adhering strictly to the minimum cable bend radius of 25.4 mm (1.0 in).

When joining the probe lead to the extension cable, push the ClickLoc coaxial connectors together until they snap firmly into place. Next, slide the flexible connector protector over the mated junction to block environmental dirt and moisture.

Ground the overall cable shield strictly at the Proximitor Sensor end terminal block. Maintain isolation at the machine housing end to eliminate ground loops and minimize electrical noise pickup.