330195-02-12-10-05 | Bently Nevada | 3300 XL 8 mm Proximity Probes

Bently Nevada 330195-02-12-10-05 3300 XL 8 mm Proximity Probes

Configured for reverse‑mount displacement measurement in 3300 XL eddy‑current systems, the Bently Nevada 330195-02-12-10-05 (330195 proximity probe) provides direct shaft‑to‑sensor gap detection through a 3/8‑24 UNF threaded stainless‑steel case and a factory‑matched 1.0 m coaxial lead. The assembly incorporates CSA/ATEX/IECEx approvals under suffix 05.

Suffix Breakdown & Model Matrix

• 330195: 8 mm proximity probe, reverse‑mount variant
• 02: Miniature ClickLoc coaxial connector
• 12: Probe mechanical configuration (CXX series, 3/8‑24 UNF threads)
• 10: Total cable length = 1.0 m (3.3 ft)
• 05: CSA, ATEX, IECEx approvals

Hardware Specifications

Gap Voltage Validation and Eddy‑Current Scaling

3300 XL probes maintain a −10 VDC nominal gap‑voltage reference, enabling predictable displacement scaling across the 8 mm sensing range. The reverse‑mount geometry preserves probe‑to‑shaft alignment in confined installations, while the 1.0 m coaxial cable maintains impedance stability for consistent rotor‑dynamic phase tracking. ClickLoc termination provides repeatable electrical seating and reduces cross‑talk in multi‑probe arrays.

Frequently Asked Questions

Q: Can the reverse‑mount probe be replaced while the proximitor remains energized? A: Replacement should occur only with the channel de‑energized to avoid transient gap‑voltage excursions.

Q: Does the 1.0 m cable length require proximitor recalibration? A: No recalibration is required; the cable length is factory‑matched for standard 3300 XL proximitor modules.

Q: Do CSA/ATEX/IECEx approvals affect electrical configuration? A: Approvals do not alter electrical behavior; installation and scaling remain identical to non‑approved variants.

Field Installation Guidelines

• Ensure clean mounting surfaces to maintain stable reverse‑mount seating.
• Terminate cable shielding at the proximitor end only to prevent ground‑loop formation.
• Avoid sharp bends that may alter coaxial impedance.
• Route cable away from high‑current conductors to reduce electromagnetic interference.
• Verify ClickLoc connector engagement before energizing the monitoring channel.