Bently Nevada 330905-00-15-05-02-05 Proximity Probe

Bently Nevada 330905-00-15-05-02-05 3300 NSv Proximity Probe

Configured for displacement measurement in NSv eddy‑current monitoring loops, the Bently Nevada 330905-00-15-05-02-05 (330905 proximity probe) provides direct physical sensing through a controlled impedance path and stable gap‑voltage behavior required by 3300 NSv signal conditioning modules.

Suffix Breakdown & Model Matrix

• 330905 = 3300 NSv proximity probe
• 00 = Unthreaded length 0 mm
• 15 = Case length 150 mm
• 05 = Integral cable length 5.0 m
• 02 = Miniature coaxial ClickLoc connector
• 05 = Multiple agency approvals

Hardware Specifications

Eddy‑Current Scaling and Gap‑Voltage Validation

The probe maintains calibrated eddy‑current scaling when paired with NSv‑rated extension cables and proximitor modules. Gap‑voltage behavior aligns with the −10 VDC reference used in NSv systems, supporting consistent displacement interpretation across rotor‑dynamic monitoring applications. The extended 5.0 m integral cable requires careful routing to preserve coaxial impedance and minimize cross‑talk in multi‑channel installations.

Frequently Asked Questions

Q: Does the 5.0 m integral cable affect NSv calibration? A: No. The probe is factory‑matched for its specified cable length. Calibration remains valid when used with the correct NSv proximitor.

Q: Can the ClickLoc connector be field‑repaired? A: No. The connector is factory‑assembled. Field repair or re‑termination may alter impedance and degrade displacement accuracy.

Q: Should shielding be bonded at both ends? A: No. Shielding must be bonded at the proximitor end only to prevent ground‑loop formation.

Field Installation Guidelines

Ensure full engagement of the M10 × 1 threaded section to maintain probe‑to‑shaft alignment. Route the 5.0 m coaxial cable with gentle bend radii to preserve impedance stability. Maintain separation from high‑current conductors or variable‑frequency drive outputs to reduce electromagnetic interference. Apply strain relief to prevent vibration‑induced connector motion. Avoid overtightening during installation to prevent thread deformation.