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The Bently Nevada 330103-00-11-50-02-00, 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 11 110 mm
Total Length Option 50 5.0 meters (16.4 feet)
Connector and Cable Type Option 02 Miniature coaxial ClickLoc connector, standard cable
Agency Approval Option 00 Not required

Hardware Specifications

Parameter Specification
Model 330103-00-11-50-02-00
Brand Bently Nevada
Origin United States
Probe Tip Diameter 8 mm
Measurement Type Eddy-current, non-contact
Unthreaded Length 0 mm
Overall Case Length 110 mm
Total Length 5.0 meters (16.4 feet)
Connector Type Miniature coaxial ClickLoc connector
Cable Type Standard 75 ohm coaxial cable
Operating Temp -51 to +177 deg C
Power Consumption Passive sensor driven by external Proximitor interface
Dimensions M10 x 1 threaded body
Weight 0.48 kg

Eddy-Current Probe Scaling and Rotor Dynamics

The 3300 XL 8 mm proximity probe utilizes eddy-current probe scaling to translate the physical gap distance between the probe tip and the target shaft into a proportional electrical voltage. When paired with a compatible 5.0-meter 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: Can an extension cable be added to this 5.0-meter probe assembly?

A: No. The 330103-00-11-50-02-00 has an integrated 5.0-meter total length. It must be connected directly to a matching 5.0-meter Proximitor Sensor without an extension cable. Modifying the loop length alters circuit impedance, destroying the factory eddy-current probe scaling.

Field Installation Guidelines

  • Mechanical Torque Constraints: Tighten the 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 polyphenylene sulfide (PPS) tip.
  • Coaxial Connector Isolation: Keep the miniature coaxial ClickLoc connector dry and free of lubricants, oils, or water. Apply specialized connector boots or self-fusing insulation tape over the terminal junction.
  • Cable Bend Curvature Limits: Route the integrated 5.0-meter 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 (such as AISI 4140 steel) to maintain linear scaling execution.

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