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The Bently Nevada 330101-00-08-10-02-05, also cataloged as the 3300 XL 8 mm Proximity Probes Transducer, operates as a dedicated hardware component for continuous shaft vibration and axial position measurement within Bently Nevada 3500 and 3300 Machinery Monitoring Systems.

Suffix Breakdown & Model Matrix

Option Code Parameter Specification Technical Value / Configuration
330101 Base Model & Thread Profile 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor
-00 Unthreaded Length Option 0.0 in (0 mm unthreaded case length)
-08 Overall Case Length Option 0.8 in (2.03 cm overall case length)
-10 Total Length Option 1.0 meter (3.3 feet) system total length
-02 Connector and Cable Type Miniature coaxial ClickLoc connector, standard cable
-05 Agency Approval Option Multiple Approvals certified

Hardware Specifications

Parameter Specification
Model 330101-00-08-10-02-05
Brand Bently Nevada
Origin Made in U.S.A
Dimensions 3/8-24 UNF thread, 2.03 cm overall case length, 1.0 meter total length
Operating Temp -34 deg C to +177 deg C (-30 deg F to +350 deg F)
Power Consumption Passive component (Powered via Proximitor Sensor loop, -24 VDC system supply)
Probe Tip Diameter 8 mm
Probe Case Material AISI 304 stainless steel
Connector Type Miniature coaxial ClickLoc connector
Agency Approval Multiple Approvals

Eddy-Current Probe Scaling & Gap Voltage Validation

The probe utilizes high-frequency eddy-current technology to deliver precise linear voltage output proportional to target gap distance. Target calibration requires gap voltage validation targeting -10 VDC at the physical center of the linear range (typically corresponding to approximately 1.0 mm or 40 mils gap setting when referenced to an AISI 4140 steel target). The system exhibits strict eddy-current probe scaling to suppress channel-to-channel cross-talk and maintain flat frequency response characteristics across high-speed rotor dynamics monitoring loops. Full compliance with API 670 guarantees standardized performance across critical machinery protection installations.

Frequently Asked Questions

Q: What is the procedure for verifying the gap voltage during probe physical setup?

A: Connect the probe cable to the extension cable and Proximitor Sensor powered by -24 VDC. Measure the DC voltage between the Proximitor "Out" and "Com" terminals using a digital multimeter. Adjust probe thread engagement until the gap voltage reaches the nominal target of -10.0 VDC (corresponding to mid-span gap), then torque the mounting locknut.

Q: Does replacing a 3300 XL probe require bench calibration or component re-matching?

A: No. The 3300 XL series features complete interchangeability of components without requiring individual component matching or bench calibration.

Field Installation Guidelines

  1. Mechanical Mounting: Thread the 3/8-24 UNF body into the tapped bracket or probe sleeve. Ensure minimum 5 full turns engagement. Maintain a minimum un-gapped side clearance of 13 mm (0.5 in) from surrounding metallic surfaces to prevent lateral field loading and improper initial voltage bias.
  2. Connector Assembly: Crimp and lock the miniature coaxial ClickLoc connector. Ensure protective connector boots or silicone tape sealing are applied when installed in oil-mist or wet environments.
  3. Cable Routing & Shielding: Route cable clear of sharp machine edges and intense thermal sources exceeding +177 deg C. Maintain cable bend radius above 25.4 mm (1.0 in). Ensure outer shielding layers are bonded to safety earth ground at the machine casing entry point.

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