The Bently Nevada 330101-00-20-10-11-00, also cataloged as the 330101 Proximity Probe, operates as a dedicated hardware component for non-contacting static and dynamic shaft displacement measurements within 3300 XL Turbomachinery Instrumentation System platforms. The hardware measures high-frequency eddy-current field variations generated by the tip assembly interacting with a rotating conductive target to provide raw radial vibration, shaft position, or speed data.

Suffix Nomenclature & Option Breakdown

• 00 (Unthreaded Length Option): 0.0 inches

• 20 (Overall Case Length Option): 2.0 inches

• 10 (Total Length Option): 1.0 meter (3.3 feet)

• 11 (Connector and Cable Option): Miniature coaxial click-lock connector with fluid-resistant protective armor

• 00 (Agency Approval Option): No approvals required

Transducer Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics Tracking

The 8 mm sensing tip relies on strict compliance with factory-calibrated eddy-current probe scaling constraints to output a linear voltage slope of 7.87 V/mm. Mechanical positioning via the threaded casing defines the static air gap, matching the gap voltage validation target of -10 VDC at the linear center point of the transducer system loop. This physical-to-electrical alignment enables continuous parsing of microscopic high-frequency rotor dynamics. Internal impedance optimization across the armored coaxial path preserves signal integrity and ensures cross-talk suppression when dual probes are configured in orthogonal X-Y arrangements on a single machinery bearing housing.

Procurement Package Inventory

• Transducer Unit Box: Contains the 330101 8 mm probe assembly with integrated 1.0-meter armored cable.

• Termination Protection: Includes standard fluorocarbon heat-shrink sleeve tubes for external connector isolation.

• Excluded Items: Associated 3300 XL Proximitor sensors, extension cables, and mounting brackets must be acquired separately to form a functional transducer loop.

Shipping and Logistics Profiles

• Dispatch Window: Consignments are processed for transfer within 2-7 days when payment finish sequences register.

• Carrier Methods: Freight delivery is executed via international priority lines including DHL, FEDEX, or UPS.

• Electrostatic Control: Components travel enclosed inside static-shielding anti-static industrial packaging to mitigate latent electrical defect generation during transit.

Field Installation Guidelines

• Mounting Torque Limits: Thread the probe barrel manually into the bracket or housing block. Torque the primary locknuts to a maximum value of 11.2 N-m (100 in-lb) to prevent structural binding or deformation of the 3/8-24 UNF threads.

• Transducer Gap Optimization: Connect a digital voltmeter to the Proximitor sensor output loop terminals. Adjust the probe insertion depth relative to the target face until the real-time gap voltage validation reads exactly -10 VDC nominal before securing the jam nut.

• Coaxial Connector Grounding: Keep the miniature click-lock connectors completely clean and dry during routing. Insulate the connector joint with the provided fluorocarbon heat-shrink sleeves to prevent grounding against local flexible conduit walls, maintaining cross-talk suppression.

Frequently Asked Questions

Q: How does a field deviation from the recommended gap voltage validation affect high-speed tracking metrics?

A: Installing the probe face outside the calibrated linear zone alters the baseline eddy-current probe scaling coefficient. This causes premature signal clipping during peak transient vibration events, degrading accuracy when tracking high-frequency rotor dynamics.

Q: Can the 1.0-meter armored integrated cable be cut or modified to simplify physical routing?

A: No. Altering the physical length of the integral armored cable changes the tuned loop capacitance and electrical length parameters. Splicing disrupts the calibrated eddy-current probe scaling matrix, completely invalidating the system calibration.

Q: What separation distance must be maintained to achieve effective cross-talk suppression?

A: Maintain a minimum center-to-center separation distance of 40 mm between adjacent 8 mm probe tips. Positioning tips closer than this threshold allows their electromagnetic fields to overlap, causing signal beat frequencies that override cross-talk suppression circuits.