The Bently Nevada 330103-12-25-10-02-00 serves as the primary 330103 Extension Cable utilized to execute signal transmission between proximity probes and monitoring instrumentation across 3300 XL Series platforms.

Model Nomenclature Breakdown

• 330103: Base Model (Extension Cable)

• 12: Cable configuration/length designation

• 25: Specified length parameter

• 10: Connector protector kit included

• 02: Miniature coaxial connector

• 00: Agency approval status

Hardware Specifications

Rotor Dynamics and Signal Integrity

The cable assembly is engineered to maintain constant characteristic impedance, which is required for eddy-current probe scaling within the 3300 XL transducer system. This component facilitates precise gap voltage validation, with target operating points centered at -10 VDC at the monitor input. Shielded coaxial construction provides cross-talk suppression, maintaining the signal-to-noise ratio required for accurate rotor dynamics monitoring and shaft displacement analysis.

Ordering Information

• 1 x 330103-12-25-10-02-00 Extension Cable

• 1 x Connector Protector Kit

• 1 x Safety Documentation

Field Installation Guidelines

• Routing

• Install cabling within dedicated electrical conduit to prevent mechanical abrasion.

• Maintain a minimum bend radius of 25 mm to preserve dielectric integrity.

• Termination

• Clean all coaxial connector interfaces with non-residue electronic cleaner prior to engagement.

• Ensure secure seating of the ClickLoc connector to maintain consistent 50 Ohm electrical continuity.

• Grounding

• The cable shield must maintain a continuous low-impedance path to the machine casing ground to prevent signal interference.

Frequently Asked Questions

• Can this cable be used with non-XL 3300 series probes?

  This cable is specifically tuned for the 3300 XL transducer system. Using it with legacy probes may result in incorrect system impedance and erroneous gap voltage readings.

• Is the cable length field-adjustable?

  No. The coaxial assembly is factory-trimmed to maintain 50 Ohm impedance. Any field modifications will cause signal reflections and loss of calibration accuracy.

• Why is there a connector protector included?

  The connector protector provides environmental sealing at the interface between the probe cable and the extension cable, preventing oxidation and fluid ingress.

• Does the cable require specific grounding?

  The cable shielding is integrated into the probe system ground path. Ensure the mounting bracket provides a clean metal-to-metal contact to the machine case.

• What happens if the cable jacket is compromised?

  Compromised insulation allows moisture or oil ingress, leading to signal noise, drift in gap voltage, and potentially false vibration alarms in the TSI system.

• Is this component field-repairable?

  No. The coaxial cable assembly is factory-molded for impedance consistency. Damage to the cable or connectors necessitates a full replacement of the unit.

• How does cable length affect frequency response?

  Signal attenuation increases with length, but for standard 3300 XL systems, the frequency response remains flat up to 10 kHz.

• Can the cable operate in high-temperature environments?

  Yes, the material composition supports operation up to 177 deg C, provided the cable is not subjected to mechanical vibration that exceeds its fatigue limit.