The Bently Nevada 330881-16-00-200-06-02, also cataloged as the 330881-16-00-200-06-02 Proximity Transducer, operates as a dedicated hardware component for displacement signal conditioning within 3300 XL Proximitor systems.

Model Configuration Matrix

• Model: 330881-16-00-200-06-02

• Series: 3300 XL

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

Hardware Specifications

TSI Mechanical Monitoring Characteristics

The system employs eddy-current probe scaling to generate a precise displacement signal from shaft motion. During setup, gap voltage validation against -10 VDC targets ensures the probe tip is positioned accurately within the linear range. Rotor dynamics are monitored through high-frequency RF oscillation, which is demodulated to represent shaft radial or axial position. Cross-talk suppression is achieved through specific frequency tuning of the oscillator, allowing multiple probes to operate in proximity without signal interference.

Ordering Info

• One (1) 330881-16-00-200-06-02 Proximity Transducer

• Connector protector cap

• Installation technical documentation

Field Installation Guidelines

• Probe Positioning: Install the probe into the mounting bracket; set the physical gap using a feeler gauge to match the nominal -10 VDC gap voltage target.

• Cabling: Use factory-supplied coaxial cables; ensure all connections are torqued to specifications and secured against vibration.

• Grounding: Bond the transducer body to the machine case ground to maintain a stable electrical reference for the eddy-current field.

• Shielding: Ensure coaxial cables are routed through grounded rigid conduit to minimize electromagnetic interference from external sources.

• Initialization: Verify signal continuity and static gap voltage at the monitor or oscillator input prior to machine rotation.

Frequently Asked Questions

• Q: Can the probe cable be cut or spliced?

  A: No, the system is calibrated as a complete set including the probe, extension cable, and Proximitor; modifying the cable length alters the electrical resonance and calibration.

• Q: How is the gap voltage measured?

  A: Measure the voltage between the "OUT" and "COM" terminals of the Proximitor using a high-impedance digital voltmeter.

• Q: Is the probe tip sensitive to temperature?

  A: The probe is rated for high-temperature service; however, significant temperature changes can induce small drift in the gap voltage, which should be accounted for during baseline checks.

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

  A: The armored cable provides mechanical protection against debris and vibration-induced wear in harsh industrial environments.

• Q: Can I use this probe with a non-Bently Nevada monitor?

  A: Compatibility depends on the monitoring system's ability to provide the required excitation frequency and process the standard -24 VDC proximity signal.

• Q: What should I do if the signal is erratic?

  A: Inspect the probe tip for damage, ensure all connectors are clean and tight, and verify that the coaxial cable is free of insulation breaks.

• Q: Does the transducer require a specific mounting clearance?

  A: Yes, probes must be mounted with sufficient radial clearance from surrounding metal to prevent interference with the electromagnetic field.

• Q: How do I verify the oscillation frequency?

  A: Use an oscilloscope to verify the RF carrier frequency at the probe connector; it must match the rating of the matched Proximitor.