330102-00-20-10-02-00 | Bently Nevada | 3300 XL 8 mm Proximity Probes

Bently Nevada 330102-00-20-10-02-00 3300 XL 8 mm Proximity Probes

The Bently Nevada 330102-00-20-10-02-00, also cataloged as the 330102 proximity probe, operates as a dedicated hardware component for rotor‑to‑probe displacement measurement within 3300 XL eddy‑current monitoring networks. The armored 8 mm probe establishes a calibrated gap‑voltage relationship used for continuous shaft dynamics evaluation.

Suffix Breakdown & Model Matrix

• 330102 — 3300 XL 8 mm probe, 3/8‑24 UNF thread, with armor
• 00 — Unthreaded length 0.0 in
• 20 — Overall case length 2.0 in
• 10 — Total cable length 1.0 m
• 02 — Miniature coaxial ClickLoc connector, standard cable
• 00 — No agency approvals required

Hardware Specifications

Eddy‑Current Scaling & Gap‑Voltage Validation

The 3300 XL 8 mm probe family maintains a standardized eddy‑current scaling factor that aligns with the -10 VDC nominal gap‑voltage target used across Bently Nevada monitoring platforms. This scaling ensures consistent displacement interpretation regardless of probe armor configuration or cable length. The ClickLoc connector design suppresses cross‑talk by maintaining coaxial shielding continuity, preventing adjacent channel interference during high‑speed rotor dynamics acquisition.

Frequently Asked Questions

Q: Can the probe be hot‑swapped during machine operation? A: No. Removal alters the calibrated gap and disrupts the eddy‑current field. The machine must be in a safe, non‑rotating state before replacement.

Q: Does cable armor affect signal linearity? A: Armor does not alter the probe’s linear range; it only provides mechanical protection. Signal conditioning remains dependent on the proximitor and system cabling.

Q: How is shielding continuity maintained through the ClickLoc connector? A: The connector’s coaxial geometry preserves the return path, minimizing induced noise and preventing measurement drift.

Field Installation Guidelines

• Maintain a clean, metallic mounting surface to ensure proper thread engagement and probe alignment.
• Route armored cabling away from high‑voltage conductors to reduce electromagnetic interference.
• Ensure the probe face is perpendicular to the shaft surface to maintain linear displacement response.
• Bond shielding at the proximitor end only, preventing ground loops along the cable armor.
• Verify gap voltage after installation to confirm correct mechanical positioning.