Configured for high-frequency signal transmission in rotating machinery monitoring systems, the Bently Nevada 330103-00-14-05-02-00 (330103 Extension Cable) provides direct physical/electrical execution between 8 mm proximity probes and Proximitor sensors.

Suffix Breakdown & Model Matrix

• 330103: 3300 XL standard coaxial extension cable.

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

• 14: Cable Length Option (14.0 meters).

• 05: Total System Length Option (5.0 meters).

• 02: Agency Approval Option (Multiple international approvals).

• 00: Internal Mounting/Connector Option (Standard).

Hardware Specifications

Mechanical Monitoring and TSI Integration

The 3300 XL system utilizes precise eddy-current probe scaling to ensure linear output relative to the target displacement of the monitored machine shaft. Field technicians must perform gap voltage validation, targeting a -10 VDC setpoint to maintain optimal linearity within the transducer's 2 mm range. Accurate rotor dynamics analysis, including shaft centerline and orbital vibration monitoring, depends on phase-coherent signal transmission through the extension cable to the Proximitor sensor. Effective cross-talk suppression is achieved by observing strict conduit routing standards to prevent electrical interference on the high-frequency carrier signal.

Ordering Info

• 1 x 330103-00-14-05-02-00 Extension Cable

• 1 x Connector protector kit

• 1 x Cable connector assembly

Field Installation Guidelines

• Conduit Routing: Install within dedicated electrical conduit to shield the coaxial path from electromagnetic noise.

• Bend Radius: Maintain a minimum bend radius of 25 mm. Sharp radii deform the internal dielectric, which degrades impedance characteristics.

• Connection Integrity: Tighten coaxial connectors securely using the factory-specified torque. Ensure the connector protector is seated correctly to prevent oil or moisture ingress.

• Shielding: Ensure the cable shield is continuous through the connector. Avoid multiple ground points to prevent ground loops that induce measurement noise.

Frequently Asked Questions

• Can this cable be trimmed to match specific installation needs?

  No. The system is factory-calibrated for defined lengths. Modifying the cable length alters impedance and phase, leading to invalid vibration data.

• What is the impact of a damaged connector?

  Damage to the connector degrades the signal-to-noise ratio and causes drift in the gap voltage measurement. Replace the assembly if the connector is compromised.

• Does the cable support hot-swapping?

  The cable is a passive component. While it can be disconnected from the Proximitor, ensure the channel is in a maintenance mode to avoid triggering false alarms.

• Why is 75 ohm impedance specified?

  The 3300 XL architecture is impedance-matched to 75 ohm to ensure maximum fidelity and minimal signal reflection of the high-frequency carrier wave.

• Is this cable suitable for use in vacuum environments?

  Yes, the materials are rated for vacuum conditions provided the connections are fully seated and sealed against environmental ingress.

• How should I test for cable continuity?

  Use a high-impedance multimeter to verify the center conductor and outer shield continuity; ensure no shorts exist between the conductor and shield.

• Can the cable be used with older 3300 series Proximitors?

  No. This cable is specifically engineered for the 3300 XL system. Use with older series components leads to non-linear signal responses.

• How do I prevent signal interference when bundling cables?

  Use non-metallic cable ties and maintain separation from AC power lines. Bundling high-frequency signals with power cables induces noise into the signal path.