Bently Nevada 330104-05-10-50-11-00 3300 XL 8 mm Probe

The Bently Nevada 330104-05-10-50-11-00, also cataloged as the 330104 3300 XL 8 mm Probe, operates as a dedicated hardware component for continuous physical displacement tracking and dynamic shaft position monitoring within 3500 and 3300 Machinery Monitoring Systems. It converts physical clearance variations between the probe tip and target shaft into high-frequency radio frequency (RF) signal modulations without phase distortion across rotating machinery trains.

Suffix Breakdown & Model Matrix

Hardware Specifications

Eddy-Current Probe Scaling & Gap Voltage Validation

The 330104 probe relies on accurate eddy-current probe scaling to convert target shaft motion into accurate voltage signals. Factory calibrated to maintain a linear scale factor of 7.87 V/mm (200 mV/mil), the probe delivers continuous physical displacement data to matching Proximitor Sensors. Standard installation requires gap voltage validation (-10 VDC targets representing a 1.27 mm nominal center clearance) to position the tip squarely in the center of its linear operating zone. Maintaining exact system length targets (5.0 m total system length) prevents cross-talk suppression failures and guarantees precise rotor dynamics monitoring across radial probe pairs.

Frequently Asked Questions

Q: What specific protection is provided by the FluidLoc cable option (-11)?

A: The FluidLoc cable configuration prevents oil, synthetic lubricants, and process liquids from leaking through the internal cable structure along conduit runs into clean enclosure connections.

Q: Can this 5.0-meter total length probe be connected directly to a Proximitor sensor without an extension cable?

A: Yes. The 5.0-meter total length option (-50) allows direct connection to a 5.0-meter calibrated Proximitor Sensor, eliminating the need for an intermediate extension cable in short-run installations.

Field Installation Guidelines

• Torque the M10 x 1 probe thread to designated casing engagement limits, ensuring lock nuts are tightened to prevent mechanical backing out during operation.
• Ensure the ClickLoc coaxial connector protector is fully installed over the joint to seal out environmental contamination and moisture.
• Route the armored cable along structural machine supports, preserving a minimum bend radius of 25.4 mm (1.0 in) to prevent coaxial core deformation.
• Maintain single-point shield grounding at the Proximitor housing to eliminate ground loop interference on dynamic signal channels.