The Bently Nevada 330854-080-24-05, also cataloged as the 330854 Extension Cable, operates as a dedicated hardware component for non-contacting displacement and vibration measurements within 3300 XL 25 mm Proximity Transducer Systems. It transmits radio frequency signals between the 25 mm proximity probe and the Proximitor sensor without modifying critical loop impedance parameters.

Option Key Configurations

• 330854: 3300 XL 25 mm Extension Cable

• -080: Cable length option (8.0 m / 26.2 ft)

• -24: Connector and cable option (Standard cable with stainless steel armor and coaxial connectors)

• -05: Agency approval option (Multiple hazardous area certifications including ATEX, IECEx, and CSA intrinsic safety)

Mechanical and Electrical Parameters

Eddy-Current Signal Scaling and Impedance Parameters

The 25 mm proximity configuration relies on absolute match integrity across the cable assembly to preserve calibrated eddy-current probe scaling. This heavy-duty cable matches the 3300 XL 25 mm system parameter curve, allowing accurate gap voltage validation with a nominal -10 VDC target representing the measurement center. Maintaining precise physical separation from adjacent electrical conductors ensures signal cross-talk suppression. Any physical distortion or arbitrary length altering changes the baseline capacitance, causing erratic voltage feedback within the monitoring rack.

Package Manifest Inventory

• 1 x Bently Nevada 330854-080-24-05 3300 XL 25 mm armored extension cable

• 2 x Factory-installed miniature coaxial connectors (1 male, 1 female)

• 1 x Installation insert note containing specific hazardous area entity parameters

Cable Management Guidelines

• Minimum Bend Radius Constraints: Maintain a structural bend radius of at least 25.4 mm (1.0 in) along the armored run to prevent inner core layer fracture.

• Connector Joint Torque: Mate the clickloc coaxial connections fully by hand until a physical click occurs; do not use pliers or high-torque hand tools.

• Armor Ground Isolation: Route the stainless steel protective armor away from stray structural currents to preserve single-point ground paths.

• Terminal Interface Sealing: Apply connector protectors or high-temperature silicone self-mating tape if connections are exposed to constant moisture or oil mist.

Distribution and Transit Protocol

• Shipping Frame: 2-7 days when payment finish

• Logistics Courier: Shipped globally utilizing premium air freight options through DHL, FEDEX, or UPS.

• Outer Protection: Wrapped securely within anti-static industrial packaging using shock-absorbing form-fit interior layers.

Technical Queries & Answers

• Does this extension cable modify the nominal scale factor of a 25 mm sensor loop?

  No. The cable acts as a passive transmission medium with a specific impedance profile. When matched with a 1.0 m probe, it maintains the calibrated 0.787 V/mm scale factor.

• Can this cable component be hot-swapped while the Proximitor sensor is powered?

  Yes, the cable can be uncoupled while the system is energized. However, disconnecting this terminal causes an immediate open circuit, forcing the monitoring module to enter a fault state.

• What is the structural significance of the -24 option on this specific hardware model?

  The -24 option specifies that the standard coaxial cable assembly is encased inside a continuous, flexible stainless steel armor sleeve to withstand harsh physical environments.

• How does altering the 8.0 m length of this cable compromise the total safety loop?

  The Proximitor requires a strict 9.0 m total electrical length. Shortening or lengthening the extension cable changes the tuned resonant frequency, which invalidates the calibration profile.

• Does this extension cable carry any internal active power elements or micro-controllers?

  No, this is a passive coaxial component. It carries no processing elements and relies entirely on high-frequency AC excitation current supplied from the external Proximitor module.

• What environmental protection does the FEP jacket provide to the internal core?

  The Fluorinated Ethylene Propylene jacket provides chemical resistance against synthetic lubricants, oil mist, acids, and water ingress across the full operating range.

• Is an external ground wire attachment necessary for the stainless steel armor?

  No. The armor layer must remain isolated from intermediate structural grounds along the path. The entire assembly grounds back through the Proximitor housing ground point.

• What is the high-temperature endurance threshold for the insulation material?

  The FEP insulation and internal silver-plated copper conductors are rated to operate continuously without dielectric breakdown from -51 deg C up to +177 deg C.