Configured for non-contacting vibration and position measurement in rotating machinery, the Bently Nevada 330104-01-05-50-02-02 (330104 Proximity Transducer) provides direct physical signal execution via eddy-current sensing. This hardware component translates target displacement into an electrical output signal for localized monitoring systems.

Ordering Code Definitions

• 330104: 8 mm Proximity Probe, Reverse Mount

• 01: Unthreaded Length (10 mm)

• 05: Overall Case Length (50 mm)

• 50: Total Length (5.0 meters)

• 02: Connector Type (Miniature coaxial ClickLoc connector)

• 02: Agency Approval (Multiple approvals)

Hardware Technical Data

Mechanical Monitoring & Signal Integrity

The 3300 XL probe series employs eddy-current probe scaling to convert target gaps into linear voltage outputs. Achieving precise rotor dynamics data requires consistent gap voltage validation, targeting -10 VDC during operational equilibrium. To maintain high fidelity in radial vibration measurements, cross-talk suppression is managed by the Proximitor sensor internal circuitry. Users must ensure that probe installation maintains spatial separation from adjacent sensors to mitigate electromagnetic interference and potential frequency harmonics.

Packing List & Contents

• 1 Bently Nevada 330104 Reverse Mount Probe

• 1 FluidLoc probe tip protector

• 1 Technical instruction sheet

Physical Installation Requirements

• Gap Setting: Verify initial gap positioning at 1.27 mm from the shaft or target surface.

• Torque Specifications: Secure the locknut at 5.6 N-m to maintain structural stability during high-vibration duty.

• Cable Routing: Maintain a minimum 25 mm bend radius for the coaxial lead to prevent signal degradation.

• Grounding: Ensure the cable shield is terminated at the monitoring system chassis to minimize common-mode noise.

Frequently Asked Questions

• Does the 330104 require a specific Proximitor sensor?

  Yes, this probe must be paired with a 3300 XL series Proximitor sensor calibrated for the corresponding total system length (5.0 m).

• Can I shorten the coaxial cable length?

  No. The system is factory-calibrated for a 5.0 m total length; cutting the cable will alter the impedance and invalidate the output signal accuracy.

• What is the "Reverse Mount" configuration?

  Reverse mount probes are designed to be installed through the machine case, where the connector remains outside the pressurized or lubricated area.

• How does target material affect the output?

  The probe is calibrated for AISI 4140 steel. Ferrous or non-ferrous materials with different magnetic properties will require a scaling factor adjustment.

• What is the function of the ClickLoc connector?

  It provides a mechanical lock that ensures connection continuity under high-vibration conditions without the need for additional safety wire.

• Is the probe compatible with older 3300 series monitors?

  No. Electrical interface requirements for the 3300 XL series differ from legacy 3300 products; use with 3300 XL Proximitor sensors is required.

• What signifies a "gap voltage" failure?

  A gap voltage approaching 0 VDC or -24 VDC indicates a wiring open circuit or short circuit, respectively, requiring immediate electrical verification.

• Are the probe tips field-replaceable?

  No. The probe tip is permanently bonded to the stainless steel body to maintain environmental sealing and structural integrity.