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The Bently Nevada 330103-00-07-10-02-05, also cataloged as the 330103 Proximity Probe, operates as a dedicated hardware component for eddy-current displacement and vibration sensing within 3300 XL Proximity Transducer System platforms.

Suffix Breakdown & Model Matrix

Option Slot Configured Code Technical Definition
Unthreaded Length Option 00 0 mm
Overall Case Length Option 07 70 mm
Total Length Option 10 1.0 meter (3.3 feet)
Connector and Cable Type Option 02 Miniature coaxial ClickLoc connector, standard cable
Agency Approval Option 05 CSA, ATEX, IECEx Approvals

Hardware Specifications

Parameter Specification
Model 330103-00-07-10-02-05
Brand Bently Nevada
Origin U.S.A.
Probe Tip Diameter 8 mm
Probe Tip Material Polyphenylene sulfide (PPS)
Probe Case Material AISI 303 or 304 stainless steel (SST)
Pressure Sealing Viton O-ring sealing differential pressure between tip and case
Unthreaded Length 0 mm
Overall Case Length 70 mm
Total Length 1.0 meter (3.3 feet)
Connector Type Miniature coaxial ClickLoc connector
Cable Type Standard cable
Operating Temp -51 to +177 deg C
Power Consumption Passive sensor driven by external Proximitor interface
Dimensions M10 x 1 threaded body
Weight 0.323 kg (Net), 1.3 kg (Shipping Weight)

Eddy-Current Probe Scaling and Rotor Dynamics

The 3300 XL 8 mm proximity probe utilizes eddy-current probe scaling to convert physical gap distances into proportional electrical voltage. When paired with a compatible 3300 XL Proximitor Sensor, the system allows precise gap voltage validation with a nominal target of -10 VDC at the center of the linear range. This electrical configuration minimizes cross-talk suppression issues when multiple probes are installed in close physical proximity along the machine casing. The resulting high-frequency signal output enables accurate profiling of rotor dynamics, including dynamic shaft vibration, position, and axial thermal growth.

Frequently Asked Questions

Q: How is the gap voltage validation target verified under static conditions?

A: Connect a digital multimeter to the "OUT" and "COM" terminals of the associated Proximitor Sensor. Mechanically adjust the probe position via the M10 threads until the multimeter reads the standard -10 VDC target, indicating the electrical center of the eddy-current probe scaling.

Q: What are the consequences of altering the physical length of the 1.0-meter standard cable?

A: Splicing or modifying the physical cable length changes the calibrated impedance of the circuit loop. This disruption degrades the accuracy of the eddy-current probe scaling and compromises any subsequent tracking of dynamic rotor dynamics.

Field Installation Guidelines

  • Mechanical Torque Constraints: Tighten the AISI 303/304 stainless steel probe body into the mounting bracket using a calibrated torque wrench. Do not exceed standard engineering limits for 8 mm sensors to prevent damage to the PPS tip.
  • Coaxial Connector Isolation: Keep the miniature coaxial ClickLoc connector dry and free of lubricants or water. Apply specialized connector boots or self-fusing insulation tape over the terminal junction.
  • Cable Bend Curvature Limits: Route the standard cable maintaining a minimum bend radius that satisfies industrial standard limits. Avoid sharp angles or pinching which degrades the RF shielding layers and introduces noise.
  • Target Track Parameters: Ensure the shaft observation path is flat and matches the calibrated target alloy specification to maintain linear scaling execution.

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