Bently Nevada 330101-00-49-90-12-00 3300 XL 8 mm Proximity Probe
The Bently Nevada 330101‑00‑49‑90‑12‑00, also cataloged as the 330101 3300 XL 8 mm Proximity Probe, operates as an eddy‑current transducer for shaft position and vibration monitoring in machinery protection systems.
Suffix Breakdown & Model Matrix
330101 — 3300 XL 8 mm proximity probe, 3/8‑24 UNF thread, without armor
00 — Unthreaded length option (0.0 in)
49 — Case length = 4.9 in
90 — Cable length = 9.0 m (29.5 ft)
12 — Miniature coaxial ClickLoc connector with FluidLoc cable
The 330101 probe uses eddy‑current scaling to convert shaft displacement into a proportional voltage signal. Gap voltage validation (targeting approximately ‑10 VDC reference) ensures linearity across the 2 mm measurement span. FluidLoc cable construction provides resistance against fluid ingress, preserving measurement integrity in harsh environments.
Frequently Asked Questions
Q: Can the 330101‑00‑49‑90‑12‑00 be hot‑swapped during operation? A: No. Probes must be disconnected only when the system is de‑energized to preserve calibration integrity.
Q: How does the FluidLoc cable improve reliability? A: FluidLoc prevents fluid intrusion through the cable jacket, maintaining stable impedance and long‑term signal fidelity.
Q: What is the typical sensitivity of the probe? A: The probe provides ~200 mV/mil output across its defined linear range.
Field Installation Guidelines
Do not cut or modify the probe cable; factory termination preserves calibration.
Maintain proper bend radius to avoid altering coaxial geometry.
Route cables away from high‑frequency switching conductors to reduce induced noise.
Ensure ClickLoc connector is fully seated before energizing the system.
Confirm installation practices comply with site standards for fluid‑resistant cabling.
