The Bently Nevada 330905-00-10-10-02-00, also cataloged as the 330905-00-10-10-02-00 Proximity Probes, operates as a dedicated hardware component for non-contacting displacement measurement within 3300 NSv transducer systems.

Model Matrix Decomposition

• 330905: Base Model (3300 NSv Proximity Probe)

• 00: Unthreaded Length (00 mm)

• 10: Overall Case Length (10 mm)

• 10: Total System Length (1.0 meter)

• 02: Connector Type (Miniature coaxial ClickLoc connector)

• 00: Agency Approval (Standard)

Hardware Specifications

TSI Mechanical Monitoring Characteristics

The 3300 NSv system utilizes precise eddy-current probe scaling to convert shaft position data into a linearized output voltage. During commissioning, gap voltage validation against -10 VDC targets is required to ensure the probe remains within its specified linear range relative to the target surface. The transducer system facilitates accurate rotor dynamics monitoring by maintaining signal integrity across the air gap. Cross-talk suppression is maintained by assigning factory-tuned frequencies to specific sensor channels, ensuring that adjacent probes do not induce interference in high-density sensor arrays.

Ordering Info

• One (1) 330905-00-10-10-02-00 Proximity Probe

• Protective connector cap

• Technical documentation

Field Installation Guidelines

• Probe Positioning: Install the probe into the threaded machine casing; use a feeler gauge to adjust the physical gap to achieve the -10 VDC gap voltage target.

• Cable Management: Route the coaxial cable through grounded metallic conduit; avoid exceeding the minimum bend radius to prevent internal cable damage.

• Grounding: Maintain a singular, reliable ground path from the probe body to the machine frame to ensure accurate signal reference.

• Connector Integrity: Verify that all coaxial connections are clean, hand-tightened, and free of moisture or contaminants before final assembly.

• Signal Verification: Conduct a static gap voltage check using a high-impedance voltmeter at the oscillator output before commissioning the machine.

Frequently Asked Questions

• Q: Is this probe compatible with standard 3300 XL oscillator systems?

  A: No, the 3300 NSv probe requires a compatible 3300 NSv oscillator; it is not electrically interchangeable with 3300 XL hardware.

• Q: How is the probe tip gap validated?

  A: Measure the output voltage at the oscillator terminals with a high-impedance multimeter; the nominal target is -10 VDC at the specified operating distance.

• Q: Can the coaxial cable be field-spliced?

  A: No, field-splicing modifies the electrical resonance of the transducer system, which renders the factory-calibrated scale factor inaccurate.

• Q: What effect does shaft material have on the output?

  A: Sensitivity is factory-calibrated for 4140 steel; other materials require a scaling factor adjustment to ensure measurement accuracy.

• Q: What is the purpose of the cable armor?

  A: Optional cable armor provides mechanical protection against debris, oil, and physical wear in demanding industrial environments.

• Q: Does the probe require an external power supply?

  A: The probe is a passive device; excitation power is provided by the radio-frequency signal generated by the matched NSv oscillator.

• Q: What causes erratic or unstable gap signals?

  A: Instability often results from loose coaxial connections, electromagnetic interference, or damage to the cable insulation.

• Q: Should I use thread-locking compound during installation?

  A: No, thread-locking compounds may interrupt the electrical ground path between the probe body and the machine casing.