Bently Nevada 330104-05-10-10-02-05 3300 XL 8 mm Proximity Probe

Bently Nevada 330104-05-10-10-02-05 3300 XL 8 mm Proximity Probe

The Bently Nevada 330104-05-10-10-02-05, also cataloged as the 330104 Proximity Probe, operates as a dedicated hardware component for executing non-contact shaft displacement and dynamic vibration measurements within machinery monitoring networks.

Suffix Breakdown & Model Matrix

• 330104: Base Model (3300 XL 8 mm Proximity Probe, 3/8-24 UNF thread, without armor)
• 05: Unthreaded length option (50 mm unthreaded length)
• 10: Overall case length option (100 mm overall case length)
• 10: Total length option (5.0 meters system length)
• 02: Connector and cable-type option (Miniature coaxial ClickLoc connector, standard cable)
• 05: Agency approval option (Multiple approvals)

Hardware Specifications

Machinery Monitoring & TSI Characteristics

The probe utilizes eddy-current probe scaling to convert physical gap displacements into corresponding RF electrical modulations. During continuous operation, proper field installation targets a gap voltage validation benchmark of -10 VDC to achieve a linear, stable measurement envelope for recording raw rotor dynamics. The design balances inductive fields to minimize mechanical cross-talk suppression failures across multi-probe bearings. Environmental sealing via internal Viton O-rings isolates the case from differential machine case pressures, preventing oil migration along the internal coaxial core.

Frequently Asked Questions

Q: Does this 5.0-meter probe require an additional extension cable to connect to a 5-meter Proximitor Sensor?

A: No. This specific probe model option includes an integrated 5.0-meter cable length. It connects directly to a standard 5-meter Proximitor Sensor without the installation of a separate intermediate extension cable, reducing potential electrical failure points at connector joins.

Q: What indication reveals that the probe tip has shifted outside its linear operating range?

A: The DC gap voltage monitored at the monitoring rack or transmitter will drop below -2 VDC or rise above -18 VDC. This indicates either physical contact/over-gap or a broken connector, which triggers the system Not OK logic.

Field Installation Guidelines

• Thread Engagement Limits: Ensure strict adherence to mechanical clearance constraints during insertion. For the 3/8-24 UNF threaded housing, verify thread engagement depth matches calculated machine casing tolerances to avoid probe tip distortion or mechanical collision with the shaft.
• Connector Torque and Isolation: Lock the coaxial ClickLoc connector manually until an internal click is achieved. Do not use pliers. Slide the specialized insulation sleeve over the connection to maintain environmental isolation against splashing lubricant oil.
• Conduit Routing and Clearances: Secure the 5.0-meter integrated lead cable inside dedicated, oil-resistant flexible conduit. Route away from variable frequency drives (VFD) and high-voltage supply routing to maintain full signal fidelity.