Bently Nevada 330104-00-18-10-02-05 3300 XL 8 mm Proximity Probe

Bently Nevada 330104-00-18-10-02-05 3300 XL 8 mm Proximity Probe

The Bently Nevada 330104-00-18-10-02-05, also cataloged as the 330104 proximity probe, serves as the primary 8 mm non‑contact eddy‑current sensing element used to execute shaft‑vibration and rotor‑position measurement across 3300 XL platforms. This configuration implements a 0 mm unthreaded length, 180 mm case length, 1.0 m system length, a miniature coaxial ClickLoc connector, and hazardous‑area approvals.

Suffix Breakdown & Model Matrix

• 330104 — 3300 XL 8 mm proximity probe
• 00 — Unthreaded length = 0 mm
• 18 — Case length = 180 mm
• 10 — Total system length = 1.0 m
• 02 — Miniature coaxial ClickLoc connector
• 05 — Agency approvals (CSA, ATEX, IECEx)

Hardware Specifications

Eddy‑Current Scaling and Gap‑Voltage Behavior

3300 XL probes operate on a standardized eddy‑current scaling curve, enabling consistent displacement interpretation across the 8 mm measurement range. The proximitor drives the probe toward a nominal −10 VDC gap‑voltage target, ensuring linear response and stable rotor‑dynamic tracking. The ClickLoc connector maintains coaxial shielding continuity, reducing micro‑motion noise and suppressing cross‑talk in multi‑probe installations. Mechanical seating of the 180 mm case length ensures proper standoff distance for accurate shaft‑orbit and position measurements.

Frequently Asked Questions

Q: Can the 330104‑00‑18‑10‑02‑05 be hot‑swapped while the proximitor is energized? A: No. Physical replacement should only occur with the channel de‑energized to avoid transient gap‑voltage excursions.

Q: Does altering cable length affect proximitor calibration? A: Yes. System length is factory‑matched. Non‑standard extensions change impedance and can shift the scaling curve.

Q: Are firmware updates required when replacing this probe? A: No. The probe contains no firmware. Adjustments occur only at the proximitor or monitoring module.

Field Installation Guidelines

Maintain clean mounting surfaces to ensure stable mechanical seating of the probe case. Route coaxial cable away from high‑current conductors to minimize induced noise. Bond shielding at the proximitor end only to prevent ground loops. Avoid sharp cable bends that may alter impedance. Verify ClickLoc connector engagement to ensure stable gap‑voltage reference before commissioning.