Bently Nevada 330103-00-16-10-02-05 3300 XL 8 mm Proximity Probes

Bently Nevada 330103-00-16-10-02-05 3300 XL 8 mm Proximity Probes

The Bently Nevada 330103-00-16-10-02-05, also cataloged as the 330103 8 mm Proximity Probe, operates as a dedicated hardware component for non-contacting vibration and displacement measurement within fluid-film bearing monitoring platforms. This transducer system utilizes eddy-current induction to generate precise voltage outputs proportional to the distance between the probe tip and the observed conductive shaft surface.

Suffix Breakdown & Model Matrix

Hardware Specifications

Proximity Transducer Dynamics & Signal Scaling

The 330103 series leverages Bently Nevada eddy-current probe scaling to ensure high-accuracy signal output in demanding industrial environments. This system adheres to API 670 standards, providing consistent linearity and thermal resilience. The transducer output maintains a nominal scale factor of 200 mV/mil, requiring precise gap voltage validation to ensure the -10 VDC baseline is observed at the center of the linear range. By utilizing integrated signal conditioning, the system provides effective rotor dynamics monitoring, including shaft centerline and orbital motion analysis, while maintaining robust cross-talk suppression during multi-probe operation.

Frequently Asked Questions

Q: Does the system require individual component matching?

A: No. The 3300 XL series is designed for complete interchangeability of probes, extension cables, and Proximitor sensors, eliminating the requirement for manual component-level calibration.

Q: Is this sensor suitable for Keyphasor applications?

A: Yes. The system provides the high-frequency response required for accurate Keyphasor reference and speed measurements on rotating machinery.

Q: What is the benefit of the 160 mm case length?

A: The 160 mm case length provides the necessary physical reach for specific mounting configurations where the probe must extend deeper into the bearing housing to maintain proximity to the shaft.

Field Installation Guidelines

1. Mounting Stability: Secure the probe within a rigid, vibration-resistant mount to prevent parasitic oscillation. Ensure the probe tip is perpendicular to the shaft surface to maintain linear sensitivity.

2. Gap Calibration: Adjust the mechanical gap using a depth micrometer until the static output voltage reads -10 VDC at the monitor input. Tighten the lock-nuts to secure the probe position after verification.

3. Grounding & Shielding: Terminate all coaxial cable shields at the monitoring system terminal block. Maintain a low-impedance connection to the machine chassis to prevent high-frequency common-mode noise from entering the signal loop.

4. Cable Handling: Maintain the minimum bend radius during installation to prevent deformation of the coaxial cable geometry, which can alter the characteristic impedance and signal attenuation.