The Bently Nevada 330103-00-21-10-11-CN serves as the primary 330103 Extension Cable utilized to execute signal transmission between proximity probes and monitoring systems across 3300 XL Series platforms.

Model Nomenclature Breakdown

• 330103: Base Model (Extension Cable)

• 00: Unarmored

• 21: 2.1 meters total length

• 10: Connector protector kit included

• 11: Miniature coaxial connector

• CN: Country-specific agency approval variant

Hardware Specifications

Eddy-Current Signal Integrity

The 330103-00-21-10-11-CN is engineered to maintain constant characteristic impedance, which is required for eddy-current probe scaling within the 3300 XL transducer system. The assembly ensures gap voltage validation, with target operating points calibrated to -10 VDC at the monitor input. Cross-talk suppression is maintained through high-performance shielding, allowing for accurate rotor dynamics monitoring without signal degradation.

Ordering Information

• 1 x 330103-00-21-10-11-CN Extension Cable

• 1 x Connector Protector Kit

• 1 x Product Safety Documentation

Field Installation Guidelines

• Routing

• Route cable through dedicated conduit to avoid mechanical strain.

• Maintain a minimum bend radius of 25 mm during installation.

• Termination

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

• Verify mechanical security of the ClickLoc connector to ensure electrical continuity.

• Grounding

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

Frequently Asked Questions

• Is this cable compatible with non-XL 3300 series probes?

  This extension cable is tuned for the 3300 XL system impedance. Usage with other series may lead to calibration inaccuracies and erroneous gap readings.

• Can the cable length be modified in the field?

  No. The coaxial assembly is factory-terminated to specific lengths to maintain 50 Ohm impedance. Any modification will compromise signal integrity.

• Why is there a connector protector kit?

  The protector provides an environmental seal at the cable interface, preventing the ingress of oil and moisture which causes high-resistance contact points.

• What does the -10 VDC target voltage signify?

  This is the required operating gap voltage for Bently Nevada proximity systems, indicating the probe is at its calibrated electrical zero position.

• How should the cable be shielded?

  The cable is provided with an integral shield. Ensure this shield is not compromised during installation to prevent ground loop noise from entering the signal path.

• Is the cable field-repairable?

  No. Factory-molded coaxial connectors are used to ensure impedance consistency. Damage to connectors necessitates replacement of the entire cable assembly.

• What is the impact of cable length on frequency?

  Signal attenuation increases with length, but for this 2.1 m assembly, frequency response remains flat up to 10 kHz within standard system loop constraints.

• Can this cable operate in high-temperature environments?

  The cable is rated for 177 deg C. Ensure the installation area does not exceed this rating, and protect the cable from direct contact with extreme heat sources.