330102-00-28-10-02-00 | Bently Nevada | 3300 XL 8 mm Proximity Probes

Bently Nevada 330102-00-28-10-02-00 3300 XL 8 mm Proximity Probes

The Bently Nevada 330102-00-28-10-02-00, also cataloged as the 330102 8 mm proximity probe, serves as the primary eddy‑current probe assembly used to execute rotor‑to‑sensor displacement measurement across 3300 XL platforms.

Hardware Specifications

Eddy‑Current Probe Scaling & Gap Voltage Validation

The 3300 XL probe operates using eddy‑current displacement principles, producing a proportional voltage that corresponds to rotor‑to‑probe gap. Standard −10 VDC gap voltage targets are used for calibration, ensuring consistent scaling across monitored shafts. The armored construction suppresses cross‑talk from adjacent cable runs, maintaining stable rotor‑dynamic measurements even in high‑vibration environments. The ClickLoc connector geometry minimizes impedance discontinuities, preserving linearity across the calibrated range.

Frequently Asked Questions

Q: Can the probe be hot‑swapped during machine operation? A: Mechanical removal is possible, but displacement monitoring will drop out immediately. Probes should only be replaced when the machine is in a safe shutdown state.

Q: How does cable armor affect signal quality? A: Armor provides mechanical protection and reduces electromagnetic interference, improving signal stability in high‑noise routing paths.

Q: Is field calibration required after installation? A: Gap voltage validation using a calibrated proximitor or test fixture is recommended to confirm correct scaling and linearity.

Field Installation Guidelines

Maintain the probe tip perpendicular to the rotor surface to ensure accurate displacement measurement. Avoid bending the armored cable beyond its minimum radius. Route probe wiring separately from high‑voltage conductors to reduce induced noise. Ensure proper ClickLoc connector engagement to prevent intermittent readings. Validate gap voltage using standard −10 VDC targets before commissioning.