Bently Nevada 330730-040-01-00 3300 XL 11 mm Extension Cable

Configured for signal transmission in TSI platforms, the Bently Nevada 330730-040-01-00 (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.
• 01: Armored cable configuration (AISI 302 SST with FEP jacket).
• 00: No agency approval required.

Hardware Specifications

Mechanical Monitoring and TSI Characteristics

The 330730 extension cable maintains the necessary system impedance for the 3300 XL transducer loop. Achieving correct gap voltage validation (targeting -10 VDC at the Proximitor output) is contingent upon maintaining the integrity of this cable assembly. To ensure accurate rotor dynamics acquisition, the cable shielding must be maintained throughout the link to prevent signal degradation. Effective cross-talk suppression is achieved by observing cable separation protocols when routing the assembly near high-energy electromagnetic fields or parallel power conduits.

Frequently Asked Questions

Q: Does the armored cable configuration change the electrical performance of the extension cable?

A: The addition of the flexible AISI 302 SST armor does not alter the nominal capacitance or impedance of the signal path. It provides increased mechanical protection against physical damage without impacting the transducer frequency response.

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

A: No. This extension cable is impedance-matched for the 3300 XL system. Use with older 3300 or 7200 series Proximitors will result in incorrect system calibration and inaccurate displacement measurement.

Field Installation Guidelines

• Cable Bending: Observe a minimum bend radius of 25.4 mm (1.0 in) for the extension cable to preserve the internal coaxial structure and mechanical armor integrity.
• Connector Integrity: Inspect ClickLoc connectors for debris before mating. Tighten only to the specified hand-tight limit to avoid damaging the internal O-ring seal.
• Shielding Ground: Ensure the cable shield is continuous from the probe to the Proximitor. Improper grounding will introduce common-mode noise into the displacement signal.
• Armor Handling: When stripping the FEP outer jacket for termination, take care not to damage the flexible AISI 302 SST armor or the internal cable shield.
• Vibration Protection: Secure the armored cable at regular intervals using cable clamps to prevent mechanical fatigue and abrasion at the termination points.