The Bently Nevada 330104-00-08-50-01-05, also cataloged as the 330104-00-08-50-01-05 Proximity Probes, operates as a dedicated hardware component for non-contacting displacement measurement within 3300 XL transducer systems.

Suffix & Model Matrix

• Model: 330104-00-08-50-01-05

• Series: 3300 XL 8 mm

• Configuration: Suffixes define probe physical length, mounting thread specifications, connector type, and cable armor requirements.

Hardware Specifications

TSI Mechanical Monitoring Characteristics

The 3300 XL 8 mm transducer system utilizes eddy-current probe scaling to convert shaft motion into a standardized output signal. During commissioning, gap voltage validation against -10 VDC targets is required to ensure the probe remains within its linear range relative to the monitored surface. The system maintains stable rotor dynamics monitoring through precise radio-frequency oscillation. Cross-talk suppression is achieved by utilizing factory-tuned frequencies assigned to specific transducer channels, ensuring that adjacent probes do not induce signal interference in multi-channel monitoring racks.

Ordering Info

• One (1) 330104-00-08-50-01-05 Proximity Probe

• Protective connector cap

• Installation technical documentation

Field Installation Guidelines

• Probe Mounting: Install the probe into the threaded machine casing; adjust the physical gap using a feeler gauge to align with the -10 VDC gap voltage target.

• Cable Handling: Route the factory-terminated coaxial cable through grounded metallic conduit; adhere to the minimum bend radius requirements to prevent cable damage.

• Grounding: Bond the probe body to the machine frame to establish a singular, reliable electrical reference for the eddy-current field.

• Connector Care: Maintain clean, dry, and secure coaxial connections; verify that all threaded connections are hand-tightened and free of debris.

• System Verification: Conduct a static gap voltage test using a high-impedance voltmeter at the Proximitor output terminals before initiating rotation.

Frequently Asked Questions

• Q: Is the 330104 probe compatible with 3300 XL 5 meter or 9 meter system lengths?

  A: Yes, provided the probe is integrated with the matching oscillator and extension cable calibrated for the intended total system loop length.

• Q: How do I perform a gap voltage validation?

  A: Measure the output voltage at the Proximitor terminal block with a high-impedance digital multimeter while the probe is at a known physical distance from the target.

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

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

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

  A: Sensitivity is calibrated for standard 4140 steel; other materials require a scaling factor adjustment to ensure displacement data remains accurate.

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

  A: Cable armor provides mechanical protection against debris, oil, and potential physical damage encountered in industrial rotating equipment environments.

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

  A: No, the probe is a passive device; it receives excitation power via the radio-frequency signal generated by the matched 3300 XL oscillator.

• Q: What is the cause of an unstable or erratic gap signal?

  A: Erratic signals often result from loose connectors, electromagnetic interference, insulation damage on the coaxial cable, or target surface irregularities.

• Q: Is thread locking compound recommended for probe installation?

  A: No, thread locking compounds or heavy sealants can interrupt the electrical ground path between the probe body and the machine casing.