The Bently Nevada 330130-040-02-05, also cataloged as the 330130 Extension Cable, serves as the primary interconnect component utilized to execute signal transmission between the proximity probe and the Proximitor sensor across 3300 XL monitoring platforms.

Part Number Configuration Matrix

The assembly follows a modular definition to ensure impedance matching within the vibration monitoring loop:

• 330130: Extension cable assembly

• 040: Cable length (4.0 meters)

• 02: Connector type (Miniature coaxial ClickLoc connector with connector protector)

• 05: Agency approval option (Multiple compliance certifications)

Hardware Technical Specifications

TSI Signal Integrity and Eddy-Current Validation

The performance of the 3300 XL monitoring system is contingent upon the electrical characteristics of the interconnect cabling. This extension cable is specifically calibrated to maintain the resonant frequency of the proximity probe circuit. During installation, verify that the total system length (probe + extension cable) matches the Proximitor sensor configuration. Deviations in impedance or cable length will result in significant errors in gap voltage validation, where the system target is -10 VDC. Operators must monitor for cross-talk suppression by isolating these signal cables from high-voltage AC power lines to prevent induced noise in the rotor dynamics data.

Ordering Information

• 1 x 330130-040-02-05 Extension Cable assembly

• 2 x Connector protectors (pre-installed)

• 1 x Installation and specification datasheet

Field Installation Directives

• Routing Constraints: Ensure the cable is installed within dedicated metallic conduit to provide shielding against electromagnetic interference.

• Bend Radius: Maintain a minimum bend radius of 30 mm during cable routing to prevent structural damage to the coaxial core.

• Connector Sealing: Utilize the provided connector protectors to prevent moisture and oil ingress at the interface between the probe and extension cable.

• Grounding Compliance: Maintain cable continuity to the system common ground at the monitor rack to ensure effective shielding performance.

Frequently Asked Questions

• Can I cut and splice this cable to a custom length? No, the system is factory-calibrated for specific lengths; altering the length will invalidate the signal output.

• Why is the cable impedance critical? The 75 Ohm impedance is matched to the Proximitor sensor to prevent signal reflections that cause measurement errors.

• What is the purpose of the ClickLoc connector? It provides a secure, vibration-resistant connection that maintains a constant contact resistance.

• Can this cable be used with non-3300 XL systems? No, it is designed exclusively for the 3300 XL proximity probe family.

• How do I verify signal continuity? Use a multimeter to check for center conductor continuity and shield isolation before mounting the probe.

• Is the cable outer jacket oil-resistant? Yes, the material is engineered to withstand long-term exposure to standard industrial lubricating oils.

• Can this be used in explosive atmospheres? Yes, provided the installation meets the specific agency approval codes indicated on the cable tag.

• What is the impact of a damaged shield? A compromised shield acts as an antenna, allowing external electrical noise to interfere with the low-level vibration signal.