The Bently Nevada 330930-060-06-05, also cataloged as the 330930-060-06-05 Extension Cable, operates as a dedicated hardware component for signal transmission between proximity probes and monitoring systems within machine protection platforms.

Model Identification Matrix

• 060: 6.0 meters (19.7 feet) cable length.
• 06: FluidLoc cable without stainless steel armor.
• 05: Multiple agency approvals.

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The 330930-060-06-05 extension cable maintains the system impedance necessary to support the 7.87 V/mm scale factor of Bently Nevada proximity transducer systems. To ensure accurate rotor dynamics analysis, the connection must be verified to maintain the target gap voltage, typically -10 VDC when measured at the proximitor output. The cable shielding is engineered for cross-talk suppression in multi-channel installations, which prevents signal noise injection from neighboring sensor channels. Proper termination of the cable shield is required to maintain measurement linearity and prevent ground loops that could introduce errors in vibration data.

Ordering Info

• 1 x 330930-060-06-05 Extension Cable
• 1 x Connector interface documentation

Field Installation Guidelines

• Cable Management
  • Route the extension cable through dedicated instrumentation trays away from high-voltage power conduits.
  • Secure the cable at intervals not exceeding 30 cm using non-conductive cable ties to minimize mechanical vibration-induced fatigue.
• Electrical Termination
  • Inspect both ends of the coaxial connection for debris or dielectric contamination before mating the connectors.
  • Ensure the connectors are fully seated and tight to maintain constant contact resistance.
• Grounding
  • Verify that the extension cable shield is connected to the common ground at the proximitor end per the system installation manual.

Frequently Asked Questions

• What is the primary purpose of the FluidLoc cable construction?

  The FluidLoc design prevents the migration of process fluids through the cable jacket via capillary action, protecting the interior conductors from degradation in harsh environments.

• Can this cable be used with non-Bently Nevada monitoring systems?

  System compatibility depends on impedance matching and probe scaling requirements; check the host monitor's input impedance specifications before installation.

• Is the cable length field-adjustable?

  No. Altering the cable length will modify the capacitance and inductance of the loop, which directly affects the system calibration and accuracy.

• How should I handle a signal loss or intermittent reading?

  Verify the physical connection at both the probe and the proximitor, and inspect the cable for any signs of mechanical damage or crushing.

• What should the gap voltage be for this system?

  The target gap voltage is typically -10 VDC; confirm this against the specific transducer calibration sheet provided with the probe.

• Is this cable suitable for use in high-temperature zones?

  The assembly is rated for operation up to +177 deg C; ensure the selected path avoids direct contact with steam lines or extreme heat sources.

• Does the cable require specific grounding precautions?

  The shield should be grounded only at the proximitor end to prevent ground loops that can introduce electrical noise into the monitoring signal.

• Can the cable be used for axial position measurement?

  Yes, this extension cable is compatible with both radial vibration and axial position measurement configurations within the 3300 series.