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The Bently Nevada 330930-060-00-05, also cataloged as the 3300 XL Standard Extension Cable, operates as a dedicated hardware component for high-frequency signal transmission between proximity probes and Proximitor sensors within 3300 XL Transducer System networks.

Suffix Breakdown & Model Matrix

The suffix breakdown for part number 330930-060-00-05 is structured as follows:

  • 330930: Base Model designation for 3300 XL Standard Extension Cable
  • 060: Cable Length Option - 6.0 meters (19.7 feet)
  • 00: Connector and Cable Option - Standard cable without stainless steel armor
  • 05: Agency Approval Option - Multiple approvals (CSA, ATEX, IECEx)

Hardware Specifications

Parameter Specification
Model 330930-060-00-05
Brand Bently Nevada
Origin USA
Weight 0.27 kg (Net), 1.5 kg (Shipping)
Dimensions 6.0 meters (19.7 feet) physical length
Operating Temp -51 to 177 deg C (-60 to 350 deg F)
Power Consumption Passive physical conductor (zero power dissipation)
Unit Cable Mass 0.045 kg/m
Armoring Option Option 00 (Without stainless steel armor)
Agency Approval Option 05 (Multiple Approvals)

Rotor Dynamics & Gap Voltage Validation

The 3300 XL extension cable transmits raw high-frequency radio-frequency signals across its coaxial structure to maintain matched impedance and loop capacitance. Preserving exact total system cable length is necessary for accurate eddy-current probe scaling and rotor dynamics monitoring. Field commissioning requires executing gap voltage validation across the Proximitor output terminals, adjusting physical probe standoff distance until establishing a nominal baseline target of -10 VDC under non-rotating shaft conditions.

Frequently Asked Questions

Q: How does installing an incorrect cable length affect the Proximitor calibration?

A: The Proximitor sensor is calibrated to the combined capacitance of a specific total loop length. Using an unapproved cable length shifts system electrical tuning, degrading overall linear measurement accuracy.

Q: What precautions should be observed for unarmored extension cable installations?

A: Unarmored (Option 00) cables must be routed inside metal conduits or covered cable trays to protect the outer insulation against sharp bends, pinching, and mechanical impact.

Field Installation Guidelines

  1. Conduit Separation: Route the extension cable through grounded metallic conduit, keeping physical separation from AC motor cables to suppress induced electrical noise.
  2. Connector Mating: Inspect miniature coaxial ClickLoc connectors prior to mating. Align keyways, push, and twist until fully seated to establish positive mechanical latching.
  3. Minimum Bend Radius: Respect minimum allowable bend radius limits during installation to prevent deformation of the coaxial dielectric layer.
  4. Shield Isolation: Maintain overall cable shielding continuity along the run, ensuring single-point termination at the monitoring cabinet ground bar to mitigate ground loop currents.

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