Configured for precision shaft position and vibration monitoring in TSI platforms, the Bently Nevada 330172-00-08-10-02-05 (330172 5 mm Proximity Probe) provides direct physical execution of displacement sensing within the 3300 system.

Part Number Configuration Details

• 330172: 5 mm Proximity Probe
• 00: Unthreaded Length (0 mm)
• 08: Overall Case Length (80 mm)
• 10: Total Length (1.0 meter)
• 02: Connector Option (Miniature coaxial ClickLoc)
• 05: Agency Approval (Multiple international standards)

Hardware Specifications

Mechanical Monitoring & Eddy-Current Validation

The 3300 transducer system employs eddy-current probe scaling to convert target surface displacement into a proportional voltage signal. Maintaining accurate rotor dynamics analysis requires rigorous gap voltage validation; installers must target -10 VDC at the monitor output to ensure operation within the linear range. Effective cross-talk suppression is achieved by observing minimum probe spacing requirements, which prevents frequency interference between sensors mounted in close proximity on the same rotor shaft.

Ordering Info

• 1x 5 mm Proximity Probe (330172)
• 1x Connector protector
• 1x Installation manual (technical reference)

Field Installation Guidelines

• Mounting Stability: Install the probe into a rigid bracket to minimize structural resonance and ensure consistent gap maintenance.
• Conduit Shielding: Route all coaxial cabling within grounded metallic conduit to mitigate the effects of electromagnetic interference and signal noise.
• Connector Integrity: Ensure the ClickLoc connector is fully engaged and protected with the included sleeve to prevent fluid ingress and contact oxidation.
• Torque Limits: Adhere to specified torque values for mounting nuts to prevent mechanical shifting or damage to the probe housing threads.

Frequently Asked Questions

• What is the primary function of the -10 VDC gap voltage target?

  This voltage ensures the probe tip is centered in the linear measurement range, providing optimal signal headroom for both positive and negative shaft vibration peaks.

• Can this probe be used for high-frequency vibration measurement?

  Yes, the 3300 series probe supports a frequency response from 0 Hz to 10 kHz, making it suitable for standard turbine supervisory applications.

• How does the 1.0 meter cable length affect system calibration?

  The transducer, extension cable, and Proximitor sensor are calibrated as a matched set; the cable length is a fixed parameter and cannot be altered in the field.

• Is the probe tip material resistant to oil immersion?

  Yes, the probe tip is constructed from high-temperature polymer materials capable of long-term exposure to typical hydrocarbon-based turbine lubricants.

• What is the consequence of exceeding the operating temperature rating?

  Temperatures exceeding +177 deg C will accelerate the degradation of the internal coil insulation and lead to signal drift or permanent transducer failure.

• How do I verify the probe is installed correctly?

  Perform a gap measurement with a high-impedance multimeter at the terminal block and verify the voltage matches the target specified in the system manual.

• What is the standard thread type for the probe housing?

  The probe features a precision-machined thread compatible with standard mounting brackets; check specific drawing documentation for pitch details.

• Does the probe require an external power supply?

  No, the probe is a passive device. It derives its excitation power through the coaxial connection from the associated Proximitor sensor.