The Bently Nevada 330881-28-00-200-06-02, also cataloged as the 330881-28-00-200-06-02 Proximity Transducer, operates as a dedicated hardware component for eddy-current displacement measurement and vibration monitoring tasks within 3300 XL metric machinery protection systems.

Model Matrix and Designation Breakdown

• Base model designation: 330881 representing the PROXPAC XL metric proximity transducer system variant.
• Option codes: Configure specific probe thread sizing, cable length, armor options, and connector configurations.
• System integration: Designed for direct interfacing with machinery monitoring racks for vibration and rotor dynamics analysis.
• Mechanical standard: Metric thread configuration built to withstand harsh industrial mounting environments.

Hardware Specifications

Rotor Dynamics and Eddy-Current Probe Scaling

• Implements precise eddy-current probe scaling to convert magnetic field variations into linear voltage changes.
• Enforces gap voltage validation targeting -10 VDC operational baselines during static machinery alignment.
• Maintains high-frequency response characteristics essential for capturing transient rotor dynamics and shaft vibration waveforms.
• Utilizes cross-talk suppression techniques across multi-probe installations to eliminate electromagnetic interference between adjacent channels.

Ordering Information

• 1 x 330881-28-00-200-06-02 Proximity Transducer unit
• 1 x Technical documentation sheet

Field Installation and Calibration Guidelines

• Mount the transducer assembly securely onto the machine casing using metric threaded interfaces, ensuring proper thread engagement.
• Set the initial mechanical gap voltage to the recommended -10 VDC target using a digital voltmeter before locking jam nuts.
• Route extension and signal cables through designated metallic conduits to protect against external electromagnetic interference.
• Verify signal loop integrity and frequency response post-installation prior to machinery startup.

Frequently Asked Questions

• Q: What is the primary function of the 330881-28-00-200-06-02 module?

  A: It serves as an integrated proximity transducer system for measuring shaft vibration and radial displacement.

• Q: What is the standard voltage output scale factor for this transducer?

  A: The unit provides a nominal scale factor of 7.87 mV/um (200 mV/mil).

• Q: What target gap voltage is required during initial setup?

  A: Initial mechanical gap adjustment should target a stable -10 VDC reading.

• Q: Is this model configured for metric or imperial measurement standards?

  A: This specific configuration utilizes metric threading and scaling parameters.

• Q: What power supply range is required to drive the transducer loop?

  A: The system operates on a negative dc power supply ranging from -17.5 VDC to -26 VDC.

• Q: What is the operating temperature range limit for the hardware?

  A: It is engineered to perform reliably in ambient temperatures from -35 deg C to +85 deg C.

• Q: Are special grounding precautions necessary for the signal cable?

  A: Yes, coaxial shielding must be properly grounded at the monitor end to prevent noise coupling.

• Q: What is the total physical weight of the packaged unit?

  A: The unit has an approximate physical weight of 0.65 kg.