Configured for high-frequency eddy-current displacement acquisition within rotating machinery monitoring frameworks, the Bently Nevada 330101-00-26-05-01-05 (330101-00-26-05-01-05 Proximity Probes) provides direct physical/electrical execution.

Model Suffix Breakdown & Part Matrix

• Base Model Code: 330101 (3/8-24 UNF standard thread structure, unarmored body profile)
• Unthreaded Length Designation: 00 (0.0 in unthreaded section length format)
• Overall Case Length Specification: 26 (2.6 in total housing envelope length)
• Total System Cable Length: 05 (0.5 meter / 1.6 feet integrated cable length)
• Connector Variant Option: 01 (Pin-type connector or specialized termination option)
• Agency Approval Designation: 05 (Standard unclassified or alternate regional certification option)

Hardware Specifications Table

Eddy-Current Probe Scaling & Rotor Dynamics

The transducer utilizes high-frequency radio-frequency electromagnetic fields to measure radial vibration and shaft position relative to the probe tip. Output scaling maintains a linear sensitivity of 7.87 mV/um across the operational range. During mechanical alignment, gap voltage validation must confirm a nominal -10 VDC reading at mid-shaft position to prevent signal saturation during transient vibration spikes. Proper coaxial shielding prevents cross-talk across multi-channel monitor racks.

Standard Delivery Scope

• 1 x 3300 XL 8 mm Proximity Probe Assembly
• 1 x 3/8-24 UNF Steel Mounting Nut
• 1 x Protective Terminal Cap

Mechanical Installation and Routing Guidelines

• Clearance Verification: Ensure a minimum radial air gap of 10 mm from surrounding structural metals to eliminate parasitic eddy-current loading effects.
• Thread Engagement: Apply standard industrial thread locking and torque parameters when threading the assembly into machine casing ports.
• Cable Protection: Route the integrated coaxial cable through dedicated metal conduit, maintaining absolute separation from high-voltage motor feeds.
• Connector Security: Fasten the terminal connections securely to prevent mechanical decoupling caused by continuous operational vibration.

Frequently Asked Questions and Technical Responses

• What is the calibrated output scale factor for this transducer model?

  The nominal output scale factor is 7.87 mV/um when paired with an approved 3300 XL Proximitor sensor.

• Does this part number include heavy-duty armored cable protection?

  No, this model uses an unarmored coaxial cable construction suitable for internal machine housing runs.

• What is the continuous temperature tolerance rating of the probe tip?

  The tip assembly is rated for continuous thermal operation between -51 deg C and +177 deg C.

• How is the static gap voltage verified during system commissioning?

  A digital voltmeter is connected to the monitor channel COM and -V terminals to verify the -10 VDC baseline.

• Can this probe be interchanged with legacy 3300 series system components?

  Yes, the 3300 XL architecture maintains full electrical and physical compatibility with older 5 mm and 8 mm system modules.

• What target material alloy is required for accurate displacement calibration?

  Factory scaling assumes a standard AISI 4140 carbon steel shaft surface; alternative alloys require specific correction factors.

• What is the primary cause of signal degradation during continuous operation?

  Moisture infiltration inside the terminal connections or mechanical abrasion of the outer fluorocarbon insulation layer.

• Why is an unthreaded casing length specified on certain variants?

  The unthreaded section allows precise depth positioning through mounting brackets and sleeve adapters without thread binding.