The Bently Nevada 330104-00-04-50-02-00, also cataloged as the 330104 proximity probe, operates as a dedicated hardware component for eddy‑current displacement measurement within 3300 XL transducer systems.
Suffix Breakdown & Model Matrix
330104: 3300 XL 8 mm proximity probe.
00: Unthreaded length option (0 mm).
04: Case length option (40 mm / 4 cm).
50: Total cable length option (5.0 m).
02: Miniature coaxial ClickLoc connector with standard cable.
Linear range 2.0 mm (80 mils); scale factor 7.87 V/mm (200 mV/mil); PPS tip; stainless steel case; standard cable; no agency approvals
Eddy-Current Probe Scaling
The 3300 XL 8 mm probe family is engineered for:
Gap voltage validation at -10 VDC reference targets.
Rotor dynamics monitoring with stable linearity across 0.25–2.3 mm.
Cross‑talk suppression in multi‑channel installations.
Thermal stability maintained across -52 to +177 deg C operating range.
Frequently Asked Questions (FAQ)
Q: What is the primary application of this probe? A: It is used for measuring shaft vibration and axial position in large rotating machines such as steam turbines, gas compressors, and pumps.
Q: Does this configuration include hazardous area approvals? A: No. The suffix “00” specifies that no CSA, ATEX, or IECEx approvals are included.
Q: How does the connector design affect installation? A: The miniature coaxial ClickLoc connector ensures secure coupling and impedance stability, reducing signal loss in high‑vibration environments.
Field Installation Guidelines
Install probe tip perpendicular to shaft surface for accurate displacement readings.
Maintain insertion depth to align with -10 VDC gap reference calibration.
Route cable with shielding grounded at a single point to minimize interference.
Avoid sharp bends in cable to prevent conductor fatigue.
Confirm driver calibration after installation to ensure proper sensitivity scaling.
Ensure probe case clearance in confined turbine applications.
