330101-00-20-05-02-00 | Bently Nevada | 3300 XL 8 mm Proximity Probes

Bently Nevada 330101-00-20-05-02-00 3300 XL 8 mm Proximity Probes

Configured for shaft‑position and vibration measurement in 3300 XL eddy‑current systems, the Bently Nevada 330101-00-20-05-02-00 (330101 proximity probe) provides direct displacement sensing through a 3/8‑24 UNF threaded stainless‑steel case and a 0.5 m coaxial lead terminated with a ClickLoc connector.

Suffix Breakdown & Model Matrix

• 330101: 8 mm proximity probe, 3/8‑24 UNF thread, no armor
• 00: Unthreaded length = 0.0 in
• 20: Overall case length = 2.0 in
• 05: Total cable length = 0.5 m (1.6 ft)
• 02: Miniature coaxial ClickLoc connector, standard cable
• 00: No agency approvals required

Hardware Specifications

Gap Voltage Validation and Eddy‑Current Scaling

3300 XL probes operate around a nominal −10 VDC gap voltage reference, enabling linear displacement scaling across the 8 mm range. The PPS tip and stainless‑steel case maintain stable thermal behavior within the −51 deg C to +177 deg C envelope, preserving impedance consistency. The short 0.5 m cable minimizes attenuation and phase shift, improving rotor‑dynamic correlation when paired with proximitor modules. ClickLoc termination ensures repeatable electrical seating, reducing cross‑talk in multi‑probe installations.

Frequently Asked Questions

Q: Can the probe be replaced while the proximitor remains energized? A: Replacement should occur only with the channel de‑energized to prevent transient gap‑voltage excursions.

Q: Does the 0.5 m cable length require special proximitor configuration? A: The length is factory‑matched; no adjustment is required when using standard 3300 XL proximitor hardware.

Q: Is the pressure seal tested before shipment? A: Probes are not pressure‑tested at the factory. The Viton O‑ring provides sealing, but pressure‑test requests require custom design support.

Field Installation Guidelines

• Ensure clean 3/8‑24 UNF threads for stable mechanical seating.
• Maintain shield termination at the proximitor end only to avoid ground loops.
• Avoid sharp cable bends that may alter coaxial impedance.
• Route away from high‑current conductors to reduce electromagnetic interference.
• Verify ClickLoc connector engagement before energizing the channel.