Bently Nevada 330709-000-060-50-02-05 11 mm Proximity Probe

Bently Nevada 330709-000-060-50-02-05 11 mm Proximity Probe

The Bently Nevada 330709-000-060-50-02-05, also cataloged as the 3300 XL 11 mm Proximity Probe, operates as a dedicated hardware component for non-contacting vibration and displacement measurements within TSI (Turbomachinery Supervisory Instrumentation) systems.

Suffix Breakdown & Model Matrix

Hardware Specifications

Mechanical Monitoring & TSI Integration

The 3300 XL 11 mm system utilizes high-frequency electromagnetic fields for eddy-current probe scaling, providing a wider linear range than standard 8 mm systems. Accurate installation requires rigorous gap voltage validation to meet the nominal -10 VDC target, ensuring the transducer remains within the linear region of the rotor dynamics curve. Integrated coaxial shielding provides inherent cross-talk suppression, preserving signal integrity in multi-channel monitoring deployments for thrust and differential expansion measurements.

Frequently Asked Questions

Q: Can this probe replace existing 7200-series transducers?

A: No. Direct substitution is not supported. Upgrading to the 3300 XL 11 mm system requires a complete replacement of the probe, extension cable, and Proximitor Sensor, alongside a compatible 3500 Monitoring System software configuration.

Q: What is the primary purpose of the 11 mm tip diameter?

A: Extended Linear Range. The 11 mm geometry allows for larger measurement gaps, making it suitable for axial (thrust) position and ramp differential expansion measurements where standard 8 mm probes lack sufficient range.

Field Installation Guidelines

• Probe Mounting: Ensure the probe is installed in a rigid, vibration-resistant mount. The probe tip must be clear of any metallic objects, except for the target surface, to prevent field distortion.
• Cable Integrity: Use the ClickLoc connector system for secure mechanical locking. Avoid tight bends or pulling tension on the coaxial cable to prevent impedance changes or core breakage.
• Grounding: Maintain consistent grounding for the Proximitor Sensor to avoid ground loops. Ensure that no high-voltage electrical noise is coupled into the sensor signal path.
• Gap Verification: Always use a calibrated tool to set the physical gap. Verify the output signal via the monitor channel to confirm the reading aligns with the expected baseline gap voltage.