Configured for proximity sensing in constrained spatial envelopes, the Bently Nevada 330904-04-14-10-12-05 (330904-04-14-10-12-05 Proximity Probe) provides direct physical signal acquisition for eddy-current monitoring systems.

Model Suffix Breakdown

• 330904: Base Model (3300 NSv Proximity Probe)
• 04: M8 x 1 thread configuration
• 14: Unthreaded length designator
• 10: 1.0 meter (39 in) system length
• 12: Miniature coaxial ClickLoc connector type
• 05: Multiple agency approvals (includes FluidLoc cable)

Hardware Specifications

Mechanical Monitoring and Transducer Accuracy

The 3300 NSv probe utilizes eddy-current probe scaling specifically engineered for small-diameter shafts or limited-access applications. During system commissioning, gap voltage validation against -10 VDC targets is necessary to ensure the linear range is centered relative to the observed shaft motion. Proper cross-talk suppression is achieved through the integration of the probe and matched extension cable, preventing signal interference when multiple transducers are positioned in high-density arrays. Consistent rotor dynamics data is maintained through the use of the proprietary ClickLoc connection interface, which ensures stable impedance across the transducer loop.

Ordering Information

• 1 x 330904-04-14-10-12-05 Proximity Probe
• 1 x Installation and Technical Reference documentation

Field Installation Guidelines

• Mounting Torque: Utilize appropriate wrench flats on the probe body; do not exceed manufacturer-specified torque limits to prevent casing deformation.
• Connector Handling: The ClickLoc connector is designed for secure retention; ensure the locking mechanism is fully engaged to maintain a low-impedance signal path.
• Cable Protection: The FluidLoc cable provides resistance to environmental contamination; route cables to avoid mechanical abrasion and sharp bends.
• Gap Setting: Adjust the probe-to-target distance using a feeler gauge or depth micrometer to reach the nominal -10 VDC gap voltage target.

Frequently Asked Questions

• What is the advantage of the NSv design?

  The NSv (Near-field) series is optimized for smaller shafts or close-clearance applications where standard 3300 XL probes lack sufficient linear range.

• Can I shorten the probe cable?

  No, the system is factory-calibrated as a complete assembly. Altering the cable length will invalidate the calibration and scaling.

• Is the connector waterproof?

  The ClickLoc connector is environmentally sealed for typical industrial machine environments, but not intended for continuous submersion in pressurized fluids.

• How do I verify the probe is functioning?

  Monitor the DC gap voltage at the Proximitor output. A voltage outside the typical operating range indicates an open loop, short circuit, or extreme probe gap.

• Does this probe require a specific Proximitor?

  Yes, it must be paired with a compatible 3300 NSv Proximitor sensor calibrated to the same system length.

• What is the purpose of the armor?

  The armor provides mechanical protection against debris, vibration-induced wear, and accidental damage in harsh industrial environments.

• Can this probe be used in hazardous areas?

  The -05 suffix indicates multiple agency approvals; verify the specific hazardous area classification ratings in the product manual before installation.

• How does FluidLoc cable function?

  FluidLoc construction prevents oil and other process fluids from migrating through the cable jacket and into the connector or sensor head.