Bently Nevada 330101-23-39-10-12-05 Proximity Probes

Bently Nevada 330101-23-39-10-12-05 Proximity Probe

The Bently Nevada 330101-23-39-10-12-05, also cataloged as the 330101 proximity probe, operates as a dedicated eddy‑current displacement sensor for rotor‑dynamic monitoring within 3300 XL systems. The assembly uses a 1.2 m coaxial lead and a ClickLoc connector to maintain stable gap‑voltage behavior across proximitor interfaces.

Suffix Breakdown & Model Matrix

• 330101 — 3300 XL 8 mm proximity probe
• 23 — 3/8‑24 UNF thread, without armor
• 39 — Unthreaded length: 3.9 in
• 10 — Overall case length: 1.0 in
• 12 — Total cable length: 1.2 m
• 05 — Miniature coaxial ClickLoc connector, CSA/ATEX/IECEx approvals

Hardware Specifications

Eddy‑Current Probe Scaling and Rotor‑Dynamic Signal Stability

The 3300 XL 8 mm probe maintains a calibrated −10 VDC gap‑voltage target to ensure linear displacement scaling across proximitor interfaces. The 1.2 m cable is factory‑matched to preserve coaxial impedance, minimizing phase distortion during rotor‑dynamic analysis. Patented TipLoc and FluidLoc designs secure the probe tip and seal the cable, preventing fluid ingress and maintaining long‑term signal stability. The probe is fully compatible with standard 3300 XL 5 m and 8 m extension cables and 3300 XL proximitor sensors.

Frequently Asked Questions

Q: Can the probe be removed while the proximitor remains energized A: Removal should occur only with the channel de‑energized to avoid transient gap‑voltage excursions.

Q: Does the 1.2 m cable length require proximitor recalibration A: No. The cable length is factory‑matched to standard 3300 XL proximitor modules.

Q: Do hazardous approvals affect electrical performance A: No. Approvals relate to compliance only; electrical characteristics remain unchanged.

Field Installation Guidelines

• Maintain clean mounting surfaces to ensure stable eddy‑current field alignment.
• Terminate cable shielding at the proximitor end only to prevent ground‑loop formation.
• Avoid sharp bends in the cable to preserve coaxial impedance.
• Route probe wiring away from high‑current conductors to reduce electromagnetic interference.
• Verify ClickLoc connector engagement before energizing the monitoring channel.