330171-00-15-10-11-05 | Bently Nevada | 3300 5 mm Proximity Probes

Bently Nevada 330171-00-15-10-11-05 3300 5 mm Proximity Probe

The Bently Nevada 330171-00-15-10-11-05, also cataloged as the 330171 Proximity Probe, operates as a dedicated hardware component for eddy-current displacement measurement within 3300 monitoring systems.

Suffix Breakdown & Model Matrix

• 330171: 3300 5 mm Proximity Probe, 1/4-28 UNF thread, without armor
• -00: Unthreaded length option (0.0 inches)
• -15: Overall case length option (1.5 inches)
• -10: Integral cable length (1.0 meter / 3.3 feet)
• -11: Miniature coaxial ClickLoc connector with protector and FluidLoc cable
• -05: Agency approval option (multiple hazardous area certifications)

Hardware Specifications

Rotor Dynamics and Cross-Talk Suppression

The 330171 probe is optimized for rotor dynamics monitoring in fluid-film bearing machines. Its eddy-current scaling ensures accurate displacement readings, while cross-talk suppression techniques reduce interference between probes installed in close proximity. The FluidLoc cable design further prevents leakage paths, maintaining signal integrity in harsh environments.

Frequently Asked Questions

Q: Can the 330171 probe be hot-swapped during system operation? A: No, probes must be disconnected from the Proximitor before replacement to maintain calibration integrity.

Q: What is the recommended grounding practice for the FluidLoc cable? A: Shielding should be grounded at the Proximitor end only to prevent ground loop currents.

Q: Is the probe suitable for shafts larger than 51 mm? A: The 5 mm probe is intended for small shaft applications; larger shafts require 8 mm or 11 mm probe variants.

Field Installation Guidelines

• Engage 1/4-28 UNF threads with at least 5 turns for secure seating.
• Route integral cable away from high-voltage conductors to minimize induced noise.
• Ground shielding only at the Proximitor termination.
• Verify gap voltage calibration (-10 VDC reference) during commissioning.
• Maintain probe tip cleanliness; avoid abrasive contaminants on PPS material.