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The Bently Nevada 330130-080-00-00, also cataloged as the 330130 Extension Cable, operates as a dedicated hardware component for RF signal transmission within 3300 XL Proximitor Sensor networks. It serves as the calibrated electrical link connecting an eddy-current proximity probe to a remote processing transducer, executing high-frequency analog parameter tracking without introducing circuit discontinuities.

Suffix Breakdown & Model Matrix

  • 330130 - Base Model: 3300 XL Standard Extension Cable
  • -080 - Cable Length Option: 8.0 metres (26.2 feet)
  • -01 - Connector Protector and Cable Option: Armored Cable
  • -00 - Agency Approval Option: Not required

Hardware Specifications

Parameter Specification
Model 330130-080-01-00
Brand Bently Nevada
Origin United States
Weight 0.65 kg nominal
Dimensions 8.0 m nominal length (75 ohm coaxial core inside protective armor)
Operating Temp -51 to +177 deg C
Power Consumption 0.0 W (Passive electrical component)
Armor Construction Flexible stainless steel protective conduit
Nominal Capacitance 69.9 pF/m (21.3 pF/ft)
Minimum Bend Radius 25.4 mm (1.0 in) for coaxial core; check armor limits for installation layout
System Match 3300 XL 5 mm and 8 mm Proximity Transducers

Eddy-Current Probe Scaling & Cross-Talk Suppression

The internal physical geometry of the 330130-080-01-00 extension cable is engineered to maintain uniform electrical properties required for consistent eddy-current probe scaling. The coaxial element stabilizes high-frequency RF transmission over the 8.0 m link, providing cross-talk suppression against adjacent machinery instrumentation lines. This protection enables the connected Proximitor sensor to perform gap voltage validation targeting nominal -10 VDC baselines required for rotor dynamics tracking.

Frequently Asked Questions

Q: How does the stainless steel armor (-01 option) modify the electrical parameters of the coaxial line?

A: The external armored casing acts as a mechanical barrier and does not modify the core nominal capacitance or baseline system impedance of the internal 75 ohm transmission wire.

Q: Is it permissible to splice two sections of extension cable together if a longer physical span is required?

A: No. Splicing alters the calibrated resistance, impedance uniformity, and electrical length of the coaxial cable. This change disrupts the factory linear scale factor of the 3300 XL loop, inducing measurement errors.

Field Installation Guidelines

  • Verify that the 8.0 m extension cable is matched with a compatible 1.0 m proximity probe to ensure the total system physical length equals the 9.0 m specification required by the destination Proximitor sensor.
  • Do not apply sharp physical bends that exceed the minimum installation radius limits, preventing physical compression or stress on the internal dielectric core.
  • Ensure all subminiature coaxial connectors are insulated against structural frames and junction enclosures to prevent unexpected grounding loop faults.
  • Connect the armored outer jacket to the local structural earth terminal at the housing partition to manage environmental noise dissipation.

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