330930-045-00-CN | Bently Nevada | 3300 NSv Extension Cable

Configured for signal transmission between proximity sensors and monitoring systems in the Bently Nevada 3300 NSv machine protection platform, the Bently Nevada 330930-045-00-CN (330930-045-00-CN) extension cable provides direct physical coupling for vibration monitoring loops.

Hardware Specifications

Rotor Dynamics and Signal Integrity

The 3300 NSv extension cable is engineered to maintain a characteristic impedance of 75 Ohm within the proximity transducer loop. Proper eddy-current probe scaling requires that the total system capacitance, including this 4.5 meter cable, remains within the defined limits of the proximitor sensor to prevent signal attenuation. Cross-talk suppression is achieved through the utilization of high-quality coaxial shielding which must be maintained across the connector interface. Maintaining a stable gap voltage validation at the -10 VDC target is contingent upon the integrity of the center conductor resistance and the prevention of signal interference at the cable termination points.

Frequently Asked Questions

Q: Does the -CN suffix indicate a change in electrical characteristics compared to standard versions?

A: No. The -CN suffix denotes country-specific agency approval compliance. The fundamental electrical properties, including capacitance and DC resistance, remain identical to the standard 3300 NSv cable configuration.

Q: Can this cable be used with non-NSv transducers?

A: The 3300 NSv system is designed for small-diameter probes and specific proximitor sensors. Utilizing this cable with standard 3300 XL components may introduce impedance mismatches and measurement inaccuracies due to differing system calibration requirements.

Field Installation Guidelines

1. Verify that both the male and female coaxial connectors are free from particulate contamination before mating.
2. Route the extension cable through an independent metallic conduit to ensure electromagnetic isolation.
3. Tighten the connector coupling nut manually to ensure consistent contact without inducing mechanical stress on the center pin.
4. Ensure the cable bend radius exceeds 25.4 mm to prevent deformation of the FEP insulation and coaxial geometry.
5. Secure the cable with non-conductive nylon ties to minimize cyclic stress induced by machine vibration.