The Bently Nevada 330104-00-06-05-02-05, also cataloged as the 330104 Proximity Probe, operates as a dedicated hardware component for non-contact displacement and vibration signal transduction within 3300 System platforms. It utilizes eddy-current induction to convert mechanical motion into precise voltage signals for rotating machinery analysis.

Suffix Breakdown and Configuration Matrix

• Part Number: 330104-00-06-05-02-05

• Probe Type: 3300 XL 8 mm (Armor included)

• Unthreaded Length: 00 - 0.0 in

• Case Length: 06 - 0.6 in

• Total Length: 05 - 0.5 m (1.6 ft)

• Connector: 02 - Miniature coaxial ClickLoc connector

• Agency Approval: 05 - CSA, ATEX, IECEx Approvals

Hardware Specifications

Mechanical Monitoring and Transducer Dynamics

The 330104 system relies on precise eddy-current probe scaling to ensure linear voltage output relative to the target gap. Proper installation requires gap voltage validation to maintain a -10 VDC target at the linear range center. Effective cross-talk suppression is achieved by maintaining a minimum side-view clearance of 1.5 inches (38 mm) from the probe tip, preventing signal distortion from adjacent sensors or metallic structures. Accurate rotor dynamics analysis depends on maintaining this signal integrity and avoiding the influence of external magnetic noise on the transducer carrier signal.

Ordering Info

• 1 330104 3300 XL 8 mm Proximity Probe

• 1 Threaded mounting nut

Field Installation Guidelines

• Mounting Depth: Install the probe into the machine casing to achieve the specified gap relative to the target surface.

• Proximity Spacing: Ensure a minimum 1.5 inch (38 mm) gap between probe tips when multiple sensors are installed in radial configurations.

• Target Surface: Use only AISI 4140 steel targets, as the probe is factory-calibrated for this material's magnetic permeability.

• Conduit Termination: This model includes stainless steel armor. Ensure the armor is properly secured to avoid mechanical fatigue at the probe-to-cable transition.

Frequently Asked Questions

• Why is armor included in this model?

  The armor provides additional mechanical protection for the coaxial cable in harsh industrial environments, preventing damage from debris or maintenance activities.

• Can this probe be used in hazardous locations?

  Yes, this model includes CSA, ATEX, and IECEx approvals, allowing for installation in potentially explosive atmospheres when used with certified safety barriers.

• What is the impact of a non-standard cable length?

  The system is impedance-matched. Changing the cable length alters the characteristic impedance, which introduces signal phase shifts and amplitude errors, compromising data accuracy.

• How is the probe tip protected from fluid ingress?

  The probe tip is hermetically sealed with synthetic materials. However, the connection point requires protection from direct exposure to chemical or process fluids.

• Does the probe require external power?

  The probe is a passive transducer. It receives power from the associated Proximitor sensor through the coaxial cable connection.

• How do I verify the probe is functioning correctly?

  Measure the gap voltage at the Proximitor sensor output terminals; it should correspond to the distance between the probe and the shaft according to the calibration curve.

• Can I use this probe with 3500 System modules?

  Yes, this probe is fully compatible with the 3300 XL series infrastructure, which is supported by various 3500 series vibration monitoring modules.

• How is the unthreaded length utilized?

  The unthreaded length provides a smooth section on the probe body, allowing the installer to adjust the mounting depth precisely without being limited by thread engagement.