The Bently Nevada 330103-00-05-15-02-CN, also cataloged as the 330103 Extension Cable, operates as a dedicated hardware component for high-frequency signal transmission between 8 mm proximity probes and Proximitor sensors within rotating machinery monitoring systems.

Suffix Breakdown & Model Matrix

• 330103: 3300 XL standard extension cable.

• 00: Connector/Cable Option (Standard connector).

• 05: Cable Length Option (5.0 meters).

• 15: Total System Length Option (1.5 meters added to probe length).

• 02: Agency Approval Option (Multiple approvals: CSA, ATEX, IECEx).

• CN: Country-specific identification (China).

Hardware Specifications

Mechanical Monitoring and TSI Integration

The 3300 XL system relies on precise eddy-current probe scaling to ensure linear output relative to target displacement. Proper installation requires gap voltage validation, where the target operational gap typically centers on a -10 VDC setpoint to maintain linearity within the transducer's 2 mm range. Rotor dynamics analysis, such as shaft centerline and orbital vibration monitoring, depends on the phase-coherent signal transmission through the extension cable and Proximitor sensor. Cross-talk suppression is maintained through high-frequency shielding, preventing interference when multiple cables are installed in close proximity within machinery conduit.

Ordering Information

• 1 x 330103-00-05-15-02-CN Extension Cable

• 1 x Connector protector

• 1 x Cable connector assembly

Field Installation Guidelines

• Routing: Install within dedicated electrical conduit. Maintain separation from high-voltage AC lines to minimize electromagnetic interference.

• Bend Radius: Adhere to a minimum bend radius of 25 mm. Excessive bending degrades the coaxial dielectric and impairs signal integrity.

• Torque Specifications: Tighten connectors to manufacturer-recommended torque values. Ensure all connections are fully seated to prevent ingress of contaminants.

• Grounding: Maintain shield continuity from the probe to the monitor. Avoid multiple ground points to prevent ground loops and signal noise.

Frequently Asked Questions

• Can this cable be shortened in the field?

  No. The system is factory-calibrated for specific lengths. Cutting the cable changes the impedance and phase characteristics, resulting in measurement inaccuracy.

• What is the purpose of the connector protector?

  It provides an environmental seal against oil, moisture, and debris, preserving the high-frequency carrier wave signal from degradation.

• Is this cable compatible with non-XL 3300 Proximitors?

  No. This cable is optimized for the 3300 XL architecture; impedance mismatches with older systems will invalidate accuracy specifications.

• How do I identify internal cable damage?

  Use a multimeter to measure the center conductor and shield; open or short circuits indicate a damaged coaxial assembly that must be replaced.

• Does the cable have internal armor?

  The 00 suffix indicates standard construction without armor. For high-impact areas, route the cable through armored flexible or rigid conduit.

• Can it be used in vacuum applications?

  Yes, the materials are suitable for vacuum environments, provided the assembly is properly installed and the connector seal is maintained.

• How should I secure the cable?

  Use non-metallic ties at regular intervals to prevent mechanical vibration, which can induce noise in the signal path.

• What defines the 75 ohm impedance?

  The 3300 XL system is specifically calibrated for 75 ohm coaxial cable to ensure optimal matching of the high-frequency signal generated by the Proximitor.