The Bently Nevada 330103-00-07-10-02-00, also cataloged as the 330103 8 mm Proximity Probe, operates as a dedicated hardware component for non-contact shaft displacement and vibration measurements within 3300 XL monitoring system platforms.

Configuration Matrix & Suffix Mapping

The 330103 transducer is an 8 mm eddy-current probe with a 3/8-24 threaded case. The part number breakdown is as follows:

• 00: Unthreaded length (0.0 inches).

• 07: Overall case length (0.7 inches).

• 10: Total cable length (1.0 meter).

• 02: Connector option (Miniature coaxial ClickLoc, standard cable).

• 00: Agency approval (None).

Hardware Specifications

Machinery Monitoring & TSI Technical Attributes

The probe utilizes an inductive radio-frequency field to detect the target shaft surface, transmitting the signal to a Proximitor sensor for scaling. Precise gap voltage validation is required, targeting -10 VDC to maintain the 7.87 V/mm (200 mV/mil) sensitivity. Optimal rotor dynamics monitoring depends on strict adherence to counterbore clearances to achieve cross-talk suppression and eliminate signal interference from adjacent machine components. The system is calibrated for AISI 4140 steel; material variations require specific sensitivity adjustments.

Ordering info

• 1 x 330103-00-07-10-02-00 8 mm Proximity Probe

• 1 x 3/8-24 stainless steel locking nut

• 1 x Silicone connector boot set

Field Installation Guidelines

• Mechanical Torque:

  Ensure mounting nuts are tightened to a maximum of 13.5 N·m (120 in-lb). Exceeding this torque may damage the transducer threads or probe tip.

• Signal Cabling:

  Route all coaxial probe cables through grounded metal conduits to provide effective shielding against electromagnetic noise and ground loops.

• Connection Seating:

  ClickLoc connectors require a manual seating process. An audible click confirms positive contact; do not use pliers to tighten the connector assembly.

• Thermal Constraints:

  Verify the installation environment remains within the -51 deg C to +177 deg C temperature range to ensure signal accuracy and probe longevity.

Frequently Asked Questions

• Does this probe support static position and dynamic vibration?

  Yes, the eddy-current architecture allows for the simultaneous detection of shaft centerline position and high-frequency vibration signals.

• Is this probe compatible with all 3300 XL Proximitor sensors?

  Yes, the 3300 XL transducer components are designed for full interchangeability, allowing for system operation without site-specific recalibration.

• What is the recommended nominal gap setting?

  The target nominal gap is 1.27 mm (50 mils) to maintain the probe within the center of its 2.0 mm linear dynamic range.

• Why is the target material specification important?

  Eddy-current scaling is material-dependent. AISI 4140 steel is the standard; deviations in target conductivity or permeability will alter the output sensitivity.

• Can this probe be hot-swapped?

  Probes can be physically replaced while the machine is running, provided the associated monitor alarm setpoints are bypassed to prevent nuisance machine trips.

• What happens if the probe tip touches the shaft?

  Contact between the probe tip and shaft will lead to mechanical damage of the probe tip and potentially erroneous signal readings or alarm events.

• How is the probe integrity tested?

  Integrity is verified by confirming the gap voltage at the monitor and inspecting the coaxial cable for continuity and shield resistance.

• Is this model hazardous-area certified?

  The -00 suffix indicates no hazardous area approvals. Installation in explosive atmospheres requires models with valid ATEX or CSA ratings.