Bently Nevada 330801-28-05-101-03-02 Proximity Sensor

Bently Nevada 330801-28-05-101-03-02 Proximity Sensor The Bently Nevada 330801-28-05-101-03-02, also cataloged as the 330801 proximity sensor, serves as an 8 mm transducer system for shaft vibration and position monitoring in rotating machinery. Part Number Breakdown Model (330801): 8 mm proximity probe / transducer system Suffix (28): Series option (specific to 330801 family) Suffix (05): Probe configuration option Suffix (101): Cable length / assembly variant Suffix (03): Mounting fittings option Suffix (02): Miniature coaxial ClickLoc connector Hardware Specifications Parameter Specification Model 330801-28-05-101-03-02 Brand Bently Nevada Origin USA Weight Not specified Dimensions Tip diameter 8 mm; linear range 2 mm (80 mils) Operating Temp -40 deg C to +85 deg C (-40 deg F to +185 deg F) Power Consumption Passive probe, excitation via proximitor Core Performance Output sensitivity 200 mV/mil (7.87 V/mm); frequency response 0 Hz to 10 kHz; 3/4-14 NPT mounting interface Eddy-Current Probe Scaling and Rotor Dynamics The sensor operates on the eddy-current principle, translating magnetic field interactions into linear voltage outputs. Standard sensitivity is 200 mV/mil, with a linear range of 2 mm. Gap voltage validation at -10 VDC ensures balanced measurement of shaft movement in both directions. Coaxial shielding suppresses cross-talk, maintaining signal fidelity in multi-probe installations. Frequently Asked Questions Q: Can the 330801 sensor measure both static and dynamic displacement? A: Yes. It measures static shaft position and dynamic vibration simultaneously. Q: Is the mounting interface standardized? A: Yes. The probe uses a 3/4-14 NPT mounting interface for compatibility with standard housings. Q: Does frequency response extend into higher ranges? A: The probe supports 0 Hz to 10 kHz, sufficient for most turbomachinery vibration monitoring applications. Field Installation Guidelines Engage 3/4-14 NPT threads with minimum 5 turns for mechanical stability. Ground shielding at the proximitor end only to prevent ground-loop interference. Route cables away from high-voltage conductors to minimize induced noise. Verify -10 VDC gap voltage reference during commissioning for accurate displacement scaling. Confirm hazardous area approvals before installation in classified zones.