The Bently Nevada 330130-035-00-00, also cataloged as the 330130 Extension Cable, operates as a dedicated hardware component for signal transmission between eddy-current probes and Proximitor sensors within 3300 XL Machinery Protection Systems. This cable maintains the impedance characteristics of the tuned oscillation circuit, ensuring that the high-frequency signal remains undisturbed across the physical distance between the transducer and the monitoring electronics. The assembly provides mechanical and electrical connectivity for radial vibration and axial position measurement loops.

Suffix Breakdown

• 330130: 3300 XL Extension Cable

• -035: Cable length (3.5 meters)

• -00: Connector/Cable configuration (Standard)

• -00: Agency approval (Not required)

Hardware Specifications

Mechanical Monitoring & Rotor Dynamics

The 3300 XL transducer system requires precise eddy-current probe scaling to ensure accurate measurement of rotor dynamics. The extension cable is an integral part of the tuned circuit; therefore, impedance must be maintained. When integrating these components, technicians must implement rigorous cross-talk suppression by isolating signal paths from high-power electromagnetic sources. Proper gap voltage validation, targeting -10 VDC at the mid-linear range, remains the standard to confirm that cable impedance shifts have not introduced measurement bias or phase-angle errors.

## Ordering info

• One (1) 330130-035-00-00 Extension Cable

• Protective connector caps

• Installation and compatibility documentation

Field Installation Guidelines

• Cable Routing: Maintain a minimum separation of 30 cm (12 inches) from AC power lines to avoid induced noise.

• Bend Radius: Adhere to a minimum bend radius of 25.4 mm (1.0 inch) to prevent coaxial deformation and impedance variation.

• Connection: Ensure the ClickLoc connectors are fully seated and free of contaminants before mating to prevent signal attenuation.

• Shielding: Utilize single-point grounding at the monitor panel to maintain signal integrity and avoid ground loops within the transducer system.

Delivery Information

• Delivery time: 2-7 days when payment finish.

• Shipped via DHL/FEDEX/UPS.

• Securely packed in anti-static industrial packaging.

Frequently Asked Questions

• Can this cable be used with non-XL 3300 series components?

  Yes. The 3300 XL extension cable is backward compatible with non-XL 3300 series 5 mm and 8 mm transducer systems.

• Is this cable suitable for ETR (Extended Temperature Range) applications?

  While standard cables are rated to 177 deg C, the system allows the use of ETR probes with this cable; however, the component with the lowest rating limits the system's thermal envelope.

• Why is the system length fixed?

  The Proximitor is factory-calibrated for a specific total system length. Altering the cable length changes the circuit's resonant frequency and degrades data accuracy.

• How can I identify cable damage?

  Physical damage to the coaxial insulation or a shield break will likely result in a NOT OK signal from the Proximitor due to impedance mismatch.

• Does the cable require grounding?

  The cable shield must be grounded only at the monitor panel to prevent the formation of ground loops that could introduce signal noise.

• What is the significance of the 69.9 pF/m capacitance?

  This value is the characteristic capacitance of the coaxial cable, which is critical for maintaining the tuned frequency of the eddy-current oscillation loop.

• Can I solder the cable to repair a cut?

  No. Any repair or splice alters the impedance of the tuned circuit and invalidates the factory calibration, leading to unusable measurement data.

• How are the connectors protected during installation?

  Use the supplied protective caps during pulling through conduits to prevent debris or moisture from entering the connector interface.