The Bently Nevada 330104-00-12-10-02-05, also cataloged as the 330104 Proximity Probe, operates as a dedicated hardware component for non-contact shaft displacement and vibration measurement within 3300 XL monitoring systems.

Suffix Breakdown & Model Matrix

The 330104 is an 8 mm eddy-current transducer designed for integration into machinery protection platforms. The part number configuration is:

• 00: Unthreaded length (0.0 inches).

• 12: Overall case length (1.2 inches).

• 10: Total cable length (1.0 meter).

• 02: Connector option (Miniature coaxial ClickLoc).

• 05: Agency approval (Multiple approvals).

Hardware Specifications

Mechanical Monitoring & TSI Technical Attributes

Accurate rotor dynamics monitoring relies on precise eddy-current probe scaling. This transducer system is factory-calibrated for AISI 4140 steel; variations in target conductivity or permeability necessitate site-specific sensitivity adjustments. To ensure signal integrity, gap voltage validation at -10 VDC is required during setup. Engineers must also maintain adequate counterbore clearances around the probe tip to facilitate cross-talk suppression and eliminate extraneous signal interference from adjacent machine components.

Ordering info

• 1 x 330104-00-12-10-02-05 Proximity Probe

• 1 x 1/4-28 stainless steel lock nut

• 1 x Connector protective boot set

Field Installation Guidelines

• Mechanical Torque:

  Mounting nuts must be tightened to a maximum of 5.6 N·m (50 in-lb). Exceeding this torque compromises the probe housing thread integrity.

• Signal Cabling:

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

• Connection Seating:

  ClickLoc connectors require manual seating until an audible click is detected. Do not use tools to apply tightening force to the connector assembly.

• Thermal Protection:

  Ensure the installation location remains within the -51 deg C to +177 deg C thermal envelope to prevent transducer drift or insulation breakdown.

Frequently Asked Questions

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

  Yes, the 330104 is designed for full interchangeability within the 3300 XL transducer platform, requiring no specialized system recalibration.

• How is the probe linear range maintained?

  The probe maintains a linear range of 2.0 mm (80 mils), with optimal signal performance achieved at a nominal gap of 1.27 mm (50 mils) from the shaft surface.

• Does the -05 suffix change installation requirements?

  The -05 suffix indicates hazardous area agency approvals. Always verify local site safety documentation and ground-loop requirements prior to installation.

• Can the 1.0 meter cable be shortened or extended?

  No. The cable is fixed-length and integral to the calibrated transducer system. Modification alters electrical impedance and invalidates measurement accuracy.

• How is the DC gap voltage verified?

  Verification is conducted by measuring the DC voltage at the monitor or Proximitor interface while the machine is operating at a known, stable condition.

• What happens if the probe tip makes contact with the shaft?

  Contact leads to mechanical wear of the probe tip and potential corruption of the output signal, which may trigger unintended machine protection alarms.

• Can I replace this probe while the machine is in operation?

  Probes can be replaced online provided that the associated monitor channel is bypassed to prevent machine trips during the maintenance procedure.

• Is the connector tip protected against moisture?

  The ClickLoc connector requires the provided silicone boot to ensure proper environmental sealing against moisture and oil ingress in industrial settings.