Bently Nevada 330103-00-09-10-11-00 3300 XL 8 mm Proximity Probe

The Bently Nevada 330103-00-09-10-11-00, also cataloged as the 330103 proximity probe, serves as the primary 330103 eddy‑current sensing element utilized to execute non‑contact displacement measurement across 3300 XL system platforms. The probe provides a defined 90 mm case length, 1.0 m armored cable, and a PPS‑based sensing tip for stable rotor‑to‑probe gap monitoring.

Suffix Breakdown & Model Matrix

• 330103: Base model for the 3300 XL 8 mm proximity probe.

• -00: Unthreaded length option of 0 mm.

• -09: Overall case length of 90 mm.

• -10: Total cable length of 1.0 m (3.3 ft).

• -11: Miniature coaxial ClickLoc connector with stainless‑steel armor.

• -00: Standard agency approval; no hazardous‑area certification.

Hardware Specifications

Eddy-Current Probe Scaling and Gap Voltage Behavior

The 3300 XL 8 mm probe adheres to the standard −10 VDC gap voltage scaling used across Bently Nevada proximity systems. This ensures predictable linear displacement response when paired with the correct extension cable and Proximitor driver. The coaxial geometry and stainless‑steel armor suppress cross‑talk and maintain stable rotor dynamics signatures in high‑density cable trays. TipLoc molding and CableLoc reinforcement preserve field geometry under mechanical load, preventing drift caused by vibration or thermal cycling.

Frequently Asked Questions

Q: Does the probe require a matching extension cable for correct scaling? A: Yes. Eddy‑current probes must be paired with the exact extension cable length defined by the part number to maintain −10 VDC gap voltage calibration.

Q: Can the armored cable be routed near high‑current conductors? A: It is not recommended. Although the armor improves robustness, electromagnetic fields may still distort the sensing field.

Q: Is the probe suitable for non‑contact speed or Keyphasor applications? A: Yes. When installed with correct alignment, the probe supports vibration, position, and speed‑related measurements.

Field Installation Guidelines

• Maintain straight routing of the 1.0 m armored cable to preserve coaxial impedance.

• Align the probe tip perpendicular to the rotor surface for accurate displacement measurement.

• Avoid tight bends near the ClickLoc connector to prevent deformation of the coaxial structure.

• Ground shielding at the driver end only to avoid ground‑loop interference.

• Verify gap voltage during commissioning to confirm correct mechanical positioning.