Bently Nevada 330130-085-00-05 3300 XL Standard Extension Cable

Configured for signal path extension in machine monitoring systems, the Bently Nevada 330130-085-00-05 (330130 Standard Extension Cable) provides direct electrical connection between the proximitor sensor and the eddy-current probe. This hardware component maintains the specific impedance characteristics required to transmit high-frequency vibration signals while ensuring the integrity of the displacement measurement loop.

Suffix Breakdown & Model Matrix

Hardware Specifications

Gap Voltage Validation and Cross-talk Suppression

The accuracy of the 3300 XL transducer system is contingent upon maintaining the proper electrical loop calibration. Operators must perform gap voltage validation during commissioning, targeting a baseline of -10 VDC when the probe is at the linear center of its range. Because this 8.5 m cable adds significant electrical length, signal attenuation must be accounted for within the host monitor configuration. To prevent measurement errors, ensure that this cable is routed within dedicated metallic conduits, separated from high-current power cables to provide effective cross-talk suppression and minimize noise pickup on the high-impedance coaxial line.

Frequently Asked Questions

Q: Can this cable be used with non-XL series Proximitor sensors?

A: No. The 3300 XL system components are impedance-matched and electrically incompatible with legacy 3300 series proximity transducers. Using this cable with incompatible hardware will lead to incorrect scale factors.

Q: What is the maximum allowable bend radius for this coaxial cable?

A: The minimum static bend radius is 25.4 mm (1.0 inch). Exceeding this limit will deform the internal dielectric and shielding, resulting in characteristic impedance changes and signal distortion.

Field Installation Guidelines

• Shield Grounding: The cable shield must remain continuous through the connectors. Ensure the shield is grounded only at the Proximitor end to prevent ground loops.
• Connector Integrity: Inspect all coaxial connectors for debris or oxidation before mating. Ensure connections are fully tightened to maintain low contact resistance.
• Environmental Sealing: If installing in environments with high moisture or chemical exposure, ensure that the connection points are adequately protected by appropriate cable boots or housings, as this model (00 suffix) does not include a dedicated connector protector.
• Routing: Avoid excessive pulling force on the cable during installation to prevent connector pin displacement or internal wire strain.