330730-040-00-CN 3300 XL 11 mm | Bently Nevada | Extension Cable

Configured for signal transmission in TSI platforms, the Bently Nevada 330730-040-00-CN (330730 Extension Cable) provides direct physical/electrical execution.

Suffix Breakdown & Model Matrix

• 330730: 3300 XL 11 mm Extension Cable base model.
• 040: 4.0 meters (13.1 feet) total length.
• 00: Standard cable configuration.
• CN: ATEX/IECEx and NEPSI hazardous area approval markings.

Hardware Specifications

Mechanical Monitoring and TSI Characteristics

This cable assembly serves as a component of the 3300 XL transducer loop, which relies on precise eddy-current probe scaling to ensure linear displacement output. During site integration, installers must verify gap voltage validation to confirm the -10 VDC target, maintaining the signal within the linear range of the Proximitor. Because the transducer system is sensitive to rotor dynamics, ensure the cable is routed away from high-current conductors to minimize electrical noise. To maintain system accuracy, rigorous cross-talk suppression is achieved by observing cable separation distances when multiple probes are installed in a shared conduit or cable tray.

Frequently Asked Questions

Q: Can this 4.0 meter extension cable be shortened if the physical distance between the probe and the Proximitor is reduced?

A: No. The 3300 XL system is a calibrated assembly. The total cable length (Probe cable + Extension cable) is fixed by the system design to maintain correct impedance; shortening the cable will alter the frequency response and invalidate the calibration.

Q: How does the "CN" approval suffix affect installation requirements?

A: The "CN" suffix signifies that the component is certified for ATEX/IECEx and NEPSI hazardous environments. Installation must adhere to the specific local codes for intrinsic safety, including proper barrier selection and cable shielding grounding practices.

Field Installation Guidelines

• Connector Mating: Ensure the ClickLoc connectors are fully seated and locked. Apply only hand-tight pressure; do not use pliers or heavy tools to tighten the coupling.
• Cable Bend Radius: Maintain a minimum bend radius of 25.4 mm (1.0 in) to prevent internal coaxial damage, which can lead to intermittent gap voltage readings.
• Shield Continuity: The cable shielding must remain continuous through the connector junction. Avoid crimping or crushing the cable jacket during installation.
• Grounding: To ensure signal integrity, maintain a low-impedance ground connection for the transducer system at the Proximitor mounting base.
• Hazardous Area Compliance: For installations requiring ATEX/IECEx or NEPSI compliance, verify that all external barriers are compatible with the energy-limiting parameters of the 3300 XL system.