Bently Nevada 129716-173-037-15-05 3300 Xl 8mm Proximity Sensor

Bently Nevada 129716-173-037-15-05 3300 XL 8 mm Proximity Sensor

The Bently Nevada 129716-173-037-15-05, also cataloged as the 3300 XL proximity sensor, operates as a dedicated eddy-current transducer for radial vibration, axial position, and speed measurements within turbine supervisory instrumentation systems.

Hardware Specifications

Eddy-Current Probe Scaling

The sensor employs eddy-current scaling to convert shaft displacement into a proportional voltage signal. Gap voltage validation (targeting -10 VDC nominal) ensures linearity across the 2 mm measurement span. This supports rotor dynamics analysis and suppresses cross-talk between adjacent probes.

Frequently Asked Questions

Q: Can the sensor be hot-swapped during operation? A: No. Removal or replacement requires system power-down to preserve calibration integrity.

Q: How should cable integrity be verified during maintenance? A: Inspect armor and connector jackets to ensure isolation from ground and absence of physical damage.

Q: What is the expected linear range of the sensor? A: Approximately 2 mm (80 mils), consistent with standard 3300 XL probe specifications.

Field Installation Guidelines

• Adjust probe gap voltage to within -9 VDC to -11 VDC during commissioning.
• Ensure probe tip is aligned perpendicular to the shaft surface for accurate displacement measurement.
• Ground coaxial shielding only at the Proximitor end to prevent ground loops.
• Avoid routing probe cables parallel to high-voltage conductors to minimize induced noise.
• Confirm connector jackets and armor are intact before energizing the system.