Configured for non-contacting vibration and displacement measurement in 3300 XL monitoring platforms, the Bently Nevada 330104-02-14-50-12-RU (330104-02-14-50-12-RU Proximity Probe) provides direct physical/electrical execution for tracking radial and axial shaft motion.

Suffix Configuration Matrix

The 330104 series utilizes a standardized coding system to define mechanical and electrical properties. The configuration -02-14-50-12-RU specifies the physical thread size, case length, total system cable length, and connector termination standard required for integration into 3300 XL Proximitor sensor systems.

Hardware Specifications

Transducer System Signal Integrity

Optimal performance requires precise eddy-current probe scaling to ensure linear voltage output corresponding to the target gap. Users must verify gap voltage validation (-10 VDC targets) at the Proximitor sensor output during commissioning to ensure the system operates within the calibrated linear range. High-frequency rotor dynamics data acquisition depends on the suppression of electromagnetic noise; therefore, cross-talk suppression is achieved by ensuring the coaxial shielding remains continuous and is grounded exclusively at the monitor end to eliminate ground loop currents.

Ordering Inclusions

• 330104-02-14-50-12-RU Proximity Probe

• Integral coaxial cable assembly

• Stainless steel mounting jam nuts

• Technical installation manual

Installation Guidelines

• Surface Preparation: Ensure the target shaft area is free of scratches, burrs, or surface coatings that could affect eddy-current field uniformity.

• Mechanical Mounting: Tighten the probe body into the mounting bracket until it makes contact with the shaft, then back off to the required gap distance.

• Connector Handling: Protect the coaxial connector from moisture and contaminants using the included caps until final integration.

• Shielding: Ensure the cable path is secured using insulated clamps to prevent abrasion and mechanical stress on the coaxial dielectric.

• Impedance Matching: Verify the total system length matches the 5 m or 9 m Proximitor calibration to avoid phase shift errors in the monitored signal.

Logistics and Transit

• Delivery time: 3-5 days when payment finish.

• Dispatched via DHL/FEDEX/UPS.

• Anti-static industrial packaging utilized to protect against electrostatic discharge and mechanical impact.

Frequently Asked Questions

• Can this probe be used in 3300 standard (non-XL) systems? No, 3300 XL components are specifically calibrated for 3300 XL Proximitor sensors; intermixing series will cause measurement errors.

• What is the effect of probe tip damage? Minor scratches on the PPS tip generally do not affect readings, but structural damage will invalidate the calibration curve.

• Is the cable length field-adjustable? No, the length is fixed at the factory. Cutting the cable changes the system capacitance and renders the sensor inaccurate.

• How do I identify a ground loop? High-frequency 50/60 Hz interference observed on the vibration signal usually indicates a ground loop or improper shield termination.

• Can it be used in hydrogen-cooled environments? Yes, the materials are compatible with standard hydrogen-cooled generator environments.

• How is sensitivity maintained? Sensitivity is fixed at 200 mV/mil (7.87 V/mm) and is maintained by the matched Proximitor-Probe-Cable set.

• Does orientation matter for radial measurement? Probes should be installed at 45 degrees relative to the vertical centerline for optimal journal bearing analysis.

• Why is the stainless steel case used? It provides corrosion resistance and structural integrity for industrial machine mounting.