330709-000-060-50-02-00 3300 XL 11mm Proximity Probe | Bently Nevada

Configured for non-contact displacement measurement in TSI platforms, the Bently Nevada 330709-000-060-50-02-00 (330709 Proximity Probe) provides direct physical/electrical execution.

Hardware Specifications

Mechanical Monitoring and TSI Characteristics

The 330709 probe system utilizes eddy-current probe scaling to convert shaft motion into proportional voltage signals. During installation, perform gap voltage validation to ensure the steady-state value reaches the -10 VDC target, confirming the probe is positioned within the linear operating range of the associated Proximitor. Because these sensors are sensitive to rotor dynamics, ensure the probe tip is installed perpendicular to the shaft surface to prevent measurement errors. Proper cross-talk suppression is achieved by maintaining physical separation from adjacent probes, avoiding interference between electromagnetic fields generated by individual sensor coils.

Frequently Asked Questions

Q: Can the probe cable be shortened in the field?

A: No. The system is calibrated as a fixed-length assembly (Probe + Extension Cable + Proximitor). Cutting or modifying the cable length alters the electrical impedance, invalidating the factory-set displacement output accuracy.

Q: What is the risk of exceeding the 24 mm thread engagement limit?

A: Excessive engagement can cause mechanical deformation of the probe tip or interference with the rotating target. Always verify the physical thread depth against the machine mounting bracket to prevent damage.

Q: Is the ClickLoc connector compatible with older Bently Nevada systems?

A: The ClickLoc connector is designed for the 3300 XL series. It is not mechanically compatible with legacy Bently Nevada 3300 or 7200 series connectors.

Field Installation Guidelines

• Target Requirements: Ensure the target diameter is at least 30.5 mm to prevent edge effect distortion.
• Torque Specifications: Tighten the probe casing to a maximum of 63.3 Nm. Tighten the ClickLoc connector assembly to less than 0.565 Nm to avoid thread stripping.
• Cable Handling: Maintain a minimum bend radius of 25.4 mm. Avoid kinking or sharp bending of the FEP cable jacket to preserve signal integrity.
• Environmental Limits: While the probe operates up to 177 deg C, the pressure seal rating is limited to -34 deg C. Verify local conditions before installation in pressurized fluid zones.
• Grounding: Ensure the sensor body achieves a low-impedance electrical path to the machine housing to minimize common-mode noise.