Bently Nevada 330130-040-00-CN 3300 XL Standard Extension Cable

The Bently Nevada 330130-040-00-00, also cataloged as the 330130 Sensor Extension Cable, operates as a dedicated hardware component for signal transmission within 3500 Machinery Protection System platforms. This hardware component bridges the physical connection between a 3300 XL 8 mm proximity probe and a matching Proximitor Sensor, preserving the calibrated electrical impedance necessary for precise eddy-current displacement metrics.

Suffix Breakdown & Model Matrix

The complete model nomenclature breakdown for this technical configuration is defined below:

• 330130: Base model identifier for the 3300 XL 8 mm Extension Cable system.

• 040: Cable Length Option designating 4.0 meters (13.1 feet) of total length.

• 00: Connector Protector and Cable Option specifying standard triaxial cable configuration without connector protectors.

• CN: Agency Approval Option designating country-specific regulatory compliance certificates requiring localized verification.

Hardware Specifications

Eddy-Current Probe Scaling and Cross-Talk Suppression

Mechanical deployment of this 4.0-meter extension cable configuration relies on precise impedance calibration to safeguard rotor dynamics tracking data. The 4.0-meter length is combined with a matching 1.0-meter probe length to establish a definitive 5.0-meter system length engineered to maintain the factory eddy-current probe scaling factor of 7.87 V/mm (200 mV/mil). The integrated triaxial braid provides active cross-talk suppression, preventing capacitive coupling or signal interference when routed adjacent to separate high-density instrument bundles inside the machinery conduit track.

Frequently Asked Questions

Q: How does the country-specific CN suffix modify the field electrical installation?

A: The CN option indicates specialized regional certifications. Field installation must adhere strictly to the entity parameters outlined in the corresponding localized Field Notification Letter to ensure compliance within hazardous location boundaries.

Q: What status behavior occurs if the ClickLoc connector unlatches while the monitoring loop is live?

A: An unlatched ClickLoc connection instantly creates an open circuit within the sensor loop. The Proximitor sensor reads this resistance change, drives its voltage output to maximum saturation, and forces the associated monitor card to trigger a NOT OK fault status to prevent false trip execution.

Field Installation Guidelines

• Connection Engagement: Push the male and female miniature ClickLoc connectors together firmly until an audible click confirms positive mechanical engagement. Do not use pliers or aggressive tools to tighten the coaxial interfaces.

• Cable Bend Path Limitations: Maintain a minimum bend radius of 25.4 mm (1.0 inch) along all segments of the 4.0-meter triaxial cable run. Sharp kinks or compressed routing paths degrade insulation layers and compromise shielding performance.

• Shielding Separation Requirements: The exposed metal parts of the ClickLoc connectors must remain isolated from any contact with the machine chassis, structural conduits, or oil barriers. Use insulated junction boxes or silicone sleeves to maintain a single-point grounding layout at the monitor rack.

• Moisture Prevention: Ensure the connector junction inside the local housing is completely dry and free of oil or water contamination before mating, as moisture ingress shifts the high-frequency line impedance and induces false vibration signals.