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The Bently Nevada 330130-070-00-05, also cataloged as the 330130 Extension Cable, operates as a dedicated hardware component for RF signal transmission within 3300 XL Proximitor Sensor networks. It acts as the electrical link connecting an eddy-current proximity probe to a remote transducer module, maintaining analog measurement loop parameters without introducing uncompensated impedance mismatches or signal phase shifts.

Suffix Breakdown & Model Matrix

  • 330130 - Base Model: 3300 XL Standard Extension Cable
  • -070 - Cable Length Option: 7.0 metres (23.0 feet)
  • -00 - Connector Protector and Cable Option: Standard cable (non-armored)
  • -05 - Agency Approval Option: Multiple Approvals (CSA, ATEX, IECEx for hazardous locations)

Hardware Specifications

Parameter Specification
Model 330130-070-00-05
Brand Bently Nevada
Origin United States
Weight 0.3 kg
Dimensions 5.3 cm x 3.2 cm x 10.0 cm (coiled envelope dimensions); 7.0 m physical cable length
Operating Temp -51 to +177 deg C
Power Consumption 0.0 W (Passive component)
System Impedance 75.0 ohm nominal
Electrical Capacitance 69.9 pF/m (21.3 pF/ft) nominal
Minimum Bend Radius 25.4 mm (1.0 in)

Eddy-Current Probe Scaling & Cross-Talk Suppression

The physical construction of the 330130-070-00-05 extension cable provides strict shielding geometry necessary to preserve calibrated eddy-current probe scaling over the 7.0 m distance. This continuous coaxial shielding configuration ensures high-frequency cross-talk suppression when routed in proximity to adjacent machine instrumentation. Stabilizing the transmission path parameters enables consistent gap voltage validation, targeting the traditional nominal -10 VDC baseline across standard rotor dynamics monitoring applications.

Frequently Asked Questions

Q: Can this 7.0 m extension cable be interchanged with a 4.5 m cable within a standard calibrated loop?

A: No. Proximitor sensors are engineered for an exact total system electrical length (typically 5.0 m or 9.0 m). Swapping a 7.0 m cable into a loop tuned for a different parameter changes total circuit capacitance and invalidates the transducer calibration profile.

Q: What physical protection does this non-armored (-00 option) cable require when routed near raw mechanical parts?

A: Because the -00 option designates a standard non-armored jacket, the cable lacks native resistance to crushing or shearing. It must be installed inside grounded structural conduits or liquid-tight junction boxes to shield the inner dielectric from distortion.

Field Installation Guidelines

  • Verify that the combined electrical length of the proximity probe and the extension cable matches the fixed calibration specification printed on the Proximitor sensor label.
  • Maintain a minimum static bend radius of 25.4 mm along the entire routing sequence to prevent permanent physical changes to the coaxial impedance structure.
  • Isolate all miniature coaxial connectors from structural metalwork and conduits by fully deploying the specialized installation sleeves or applying self-fusing electrical insulation tape.
  • Route the non-armored line exclusively through dedicated low-voltage instrumentation channels to prevent external electromagnetic interference.

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