Bently Nevada 330130-075-00-05 Extension Cable

Bently Nevada 330130-075-00-05 3300 XL Extension Cable

The Bently Nevada 330130-075-00-05, also cataloged as the 330130 extension cable, serves as the primary coaxial link used to execute probe‑to‑proximitor signal transmission across 3300 XL eddy‑current measurement platforms. This configuration implements a 7.5 m system length, standard non‑armored cable construction, and multi‑agency hazardous‑area approvals.

Suffix Breakdown & Model Matrix

• 330130 — 3300 XL standard extension cable
• 075 — Cable length = 7.5 m (24.6 ft)
• 00 — Standard cable (non‑armored, no connector protector)
• 05 — Agency approvals for hazardous areas

Hardware Specifications

Eddy‑Current Scaling and Signal‑Path Integrity

The 330130 extension cable maintains calibrated eddy‑current probe scaling, ensuring displacement interpretation remains consistent across 3300 XL systems. Its coaxial geometry preserves the nominal −10 VDC gap‑voltage reference generated by the proximitor, supporting linear response and stable rotor‑dynamic tracking. The extended 7.5 m length is factory‑matched to maintain proper impedance without requiring recalibration. Shielding continuity suppresses cross‑talk, reducing induced noise in multi‑probe installations where phase and amplitude accuracy are critical.

Frequently Asked Questions

Q: Can the extension cable be replaced while the proximitor remains energized? A: No. Replacement should occur only when the monitoring channel is de‑energized to avoid transient gap‑voltage excursions.

Q: Does altering cable length affect displacement scaling? A: Yes. System length is factory‑matched. Non‑standard cable lengths change impedance and can shift the scaling curve.

Q: Does the cable require firmware compatibility checks? A: No. The extension cable is a passive component and contains no firmware.

Field Installation Guidelines

Route the cable away from high‑current conductors to minimize electromagnetic interference. Maintain gentle bend radii to preserve coaxial impedance. Bond shielding at the proximitor end only to prevent ground‑loop formation. Verify connector seating to ensure stable signal transmission. Apply strain relief to prevent micro‑motion that may introduce noise into rotor‑dynamic measurements.