Bently Nevada 330171-00-94-10-02-00 Cable

The Bently Nevada 330171-00-94-10-02-00, also cataloged as the 3300 XL extension cable, operates as a dedicated hardware component for signal transmission between the proximity probe and the Proximitor sensor within fluid-film bearing monitoring systems.

Hardware Specifications

Mechanical Monitoring & TSI Characteristics

The 3300 XL extension cable is engineered to maintain system-wide interchangeability, ensuring the transducer system meets established rotor dynamics specifications without requiring bench calibration. The cable impedance is factory-matched to the 3300 XL Proximitor sensor, which is vital for maintaining the -10 VDC gap voltage target at the Proximitor output. Proper installation of this cable is required to prevent signal attenuation and cross-talk suppression issues that could otherwise induce noise in the dynamic vibration signal path. The integrity of the coaxial shield connection remains critical to maintaining a linear output voltage proportional to the probe tip gap.

Frequently Asked Questions

Q: Is it necessary to recalibrate the Proximitor sensor when replacing this 9.4-meter extension cable?

A: No. The 3300 XL system is designed for complete interchangeability. Replacing the extension cable does not necessitate bench calibration or individual component matching, provided the cable is the correct length and part number.

Q: Can this extension cable be used with non-XL 3300 series proximity sensors?

A: No. The 3300 XL series components are specifically impedance-matched. Using XL extension cables with older non-XL components will result in signal measurement errors and incorrect gap voltage outputs.

Field Installation Guidelines

• Ensure the cable connectors are cleaned with high-grade electrical contact cleaner before assembly to prevent oxidation at the connection point.

• Do not exceed the minimum bend radius of the coaxial cable during installation to avoid internal shield damage or characteristic impedance changes.

• When routing the cable, maintain adequate separation from high-voltage power lines and VFD output cables to minimize electromagnetic interference (EMI).

• Secure the cable using authorized cable ties or conduit systems to prevent mechanical fatigue caused by machine casing vibration.

• Verify the gap voltage at the Proximitor output after installation to ensure the reading aligns with the expected baseline for the specific bearing clearance.