The Bently Nevada 330103-00-19-10-12-00, also cataloged as the 330103-00-19-10-12-00 Proximity Probes, operates as a dedicated hardware component for non-contacting displacement measurement within 3300 XL transducer systems.

Suffix Breakdown & Model Matrix

• 330103: Base Model (3300 XL 8 mm Proximity Probe)

• 00: Unthreaded Length (00 mm)

• 19: Overall Case Length (19 mm)

• 10: Total System Length (1.0 meter)

• 12: Connector Type (Connector with connector protector)

• 00: Agency Approval (Not required/Standard)

Hardware Specifications

Mechanical Monitoring & TSI Characteristics

The 3300 XL transducer system utilizes eddy-current probe scaling to convert shaft displacement into a linearized voltage signal. Proper gap voltage validation against -10 VDC targets at the oscillator output is mandatory during installation to ensure the probe tip remains within its linear operating range. This system is designed for rotor dynamics monitoring, requiring precise non-contacting distance measurements. Cross-talk suppression is achieved via frequency-coded oscillator channels, preventing signal interference in multi-probe arrays.

Ordering info

• 1 x 330103-00-19-10-12-00 Proximity Probe

• 1 x Connector protector cap

• 1 x Installation documentation

Field Installation Guidelines

• Mechanical Mounting: Thread the probe into the mounting bracket; use a feeler gauge to verify the physical air gap to achieve the nominal -10 VDC operational target.

• Cabling: Route coaxial cabling through grounded metallic conduit to protect against electromagnetic interference; adhere to minimum bend radius requirements.

• Grounding: Establish a continuous ground path from the probe body to the machine housing to maintain signal reference stability.

• Connection Verification: Inspect all coaxial connectors for debris and ensure hand-tightened security prior to system finalization.

• Static Calibration: Confirm static gap voltage with a high-impedance multimeter at the oscillator output before engaging the monitoring system.

Frequently Asked Questions

• Q: Is this probe compatible with standard 11 mm probe oscillators?

  A: No, this 8 mm probe must be paired with a matched 8 mm oscillator to maintain correct scaling and electrical frequency response characteristics.

• Q: How is the correct probe gap validated?

  A: Measure the DC output voltage at the oscillator terminals with a high-impedance multimeter; the nominal target is -10 VDC within the linear operating range.

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

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

• Q: What effect does the target material have on sensitivity?

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

• Q: What is the purpose of the connector protector cap?

  A: The cap prevents moisture, dust, or grease from entering the coaxial connection, preserving electrical signal integrity.

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

  A: No, it is a passive device; excitation power is provided by the radio-frequency carrier signal generated by the 3300 XL oscillator.

• Q: What causes unstable or drifting signal readings?

  A: Instability is typically caused by loose coaxial connections, electrical ground loops, or physical damage to the probe tip or cable insulation.

• Q: Should thread-locking compound be used during installation?

  A: No, thread-locking compounds may create an insulating barrier that disrupts the critical ground path between the probe body and machine housing.