330101-00-14-90-02-00 | Bently Nevada | 3300 XL 8 mm Proximity Probes

Bently Nevada 330101-00-14-90-02-00 3300 XL 8 mm Proximity Probes

The Bently Nevada 330101-00-14-90-02-00, also cataloged as the 330101 proximity probe, serves as the primary 8 mm eddy‑current sensing element used to execute shaft‑position and vibration measurement across 3300 XL platforms. The probe implements a 3/8‑24 UNF threaded body, 1.4 in case length, and a 9.0 m coaxial lead with ClickLoc termination.

Suffix Breakdown & Model Matrix

• 330101: 8 mm proximity probe, 3/8‑24 UNF thread
• 00: Unthreaded length = 0.0 in
• 14: Overall case length = 1.4 in
• 90: Total cable length = 9.0 m (29.5 ft)
• 02: Miniature coaxial ClickLoc connector, standard cable
• 00: No agency approvals required

Hardware Specifications

Gap Voltage Validation and Eddy‑Current Scaling

3300 XL probes operate around a nominal −10 VDC gap voltage target, enabling linearized displacement interpretation across the standard 8 mm range. The 330101 probe’s coaxial geometry maintains impedance stability along the 9.0 m cable, reducing drift in proximitor output. Proper seating of the ClickLoc connector ensures consistent rotor‑dynamic signal transfer, minimizing cross‑talk and maintaining phase accuracy in multi‑probe installations.

Frequently Asked Questions

Q: Can the 330101 probe be hot‑swapped while the proximitor is energized? A: Physical replacement should only occur with the channel de‑energized to avoid transient gap‑voltage excursions.

Q: Does cable length affect proximitor scaling? A: The 9.0 m length is factory‑matched; altering length or using non‑standard extensions can change impedance and affect calibration.

Q: Are firmware updates required when replacing a probe? A: No firmware resides in the probe. Any adjustments are made at the monitoring module or proximitor configuration.

Field Installation Guidelines

• Maintain clean 3/8‑24 UNF threads to ensure stable mechanical seating.
• Route coaxial cable away from high‑current conductors to reduce induced noise.
• Bond shield at the proximitor end only to prevent ground loops.
• Avoid sharp bends that may alter cable impedance.
• Verify ClickLoc connector engagement to ensure stable gap‑voltage reference.