330104-00-07-50-02-00 | Bently Nevada | Proximity Probes

Bently Nevada 330104-00-07-50-02-00 Proximity Probes

Configured for shaft‑to‑probe displacement measurement in 3300 XL eddy‑current monitoring systems, the Bently Nevada 330104-00-07-50-02-00 (330104 proximity probe) provides direct physical/electrical execution. The armored 8 mm probe establishes a calibrated gap‑voltage response used for rotor position and dynamic behavior acquisition.

Suffix Breakdown & Model Matrix

• 330104 — 3300 XL 8 mm probe, metric, armored
• 00 — Unthreaded length 0 mm
• 07 — Overall case length 70 mm
• 50 — Total cable length 5.0 m
• 02 — Miniature coaxial ClickLoc connector, standard cable
• 00 — No agency approvals

Hardware Specifications

Eddy‑Current Scaling & Cross‑Talk Suppression

The 3300 XL 8 mm probe maintains the standardized eddy‑current scaling used across Bently Nevada systems, aligning with the -10 VDC nominal gap‑voltage reference. The extended 5.0 m cable length is factory‑matched to preserve impedance stability and maintain displacement linearity. The ClickLoc connector ensures coaxial shielding continuity, suppressing cross‑talk and preventing phase distortion during rotor‑dynamic measurements. Armored construction stabilizes the signal path under vibration and mechanical stress.

Frequently Asked Questions

Q: Can the probe be installed while the machine is rotating? A: Installation requires a non‑rotating state to ensure correct mechanical positioning and gap verification.

Q: Does the 70 mm case length affect electrical scaling? A: Case length does not affect electrical scaling. Linearity is determined by probe geometry and proximitor matching.

Q: How should armored cabling be routed to minimize noise? A: Route the cable away from high‑current conductors and maintain shielding termination at the proximitor end only.

Field Installation Guidelines

• Ensure the M10 x 1 threaded mounting hole is clean and free of debris to maintain proper seating.
• Align the probe face perpendicular to the shaft surface for accurate displacement response.
• Avoid tight bends; maintain a gentle radius to preserve coaxial impedance.
• Bond shielding at the proximitor end only to prevent ground loops.
• Verify gap voltage after installation to confirm correct mechanical alignment.