Technical Specifications Probe Tip Diameter: 11 mm Linear Measurement Range: 0~2.54 mm Integral Cable Length: 4m Insulation Material: PTFE Operating Temperature: -55℃ ~ +177℃ Connector: Microdot connector Frequency Response: 0~10kHz
Functional Features Large linear range for heavy-duty rotating machinery displacement monitoring. High temperature resistant probe and cable adapt to hot installation position. Stable signal output under strong vibration industrial site. Threaded body with lock nut for convenient gap calibration. Fully compatible with Bently 3300 series proximitor system. Product documentation with Chinese specification description.
Application Scenarios Steam turbine and gas turbine shaft vibration monitoring in domestic power plant. Centrifugal compressor thrust bearing displacement measurement in petrochemical plant. Large generator set rotor condition monitoring. Critical rotating machinery online protection system. High-speed heavy-duty pump and fan rotor gap measurement.
Structural Characteristics Stainless steel threaded probe body with lock nut. High temperature PTFE insulated integral cable. Hermetically sealed coil assembly inside probe tip. Microdot connector at cable end. Anti-loosening locking nut to prevent gap shift under vibration.
Working Principle The proximitor outputs high-frequency alternating signal to probe coil. Alternating magnetic field generates eddy current on metal rotor surface. The coil impedance changes as the gap between probe tip and rotor changes. Impedance variation signal returns to proximitor and is converted into linear analog voltage, which reflects real-time gap, vibration and displacement value of rotating shaft.
Installation Requirements Screw the probe into the threaded hole on equipment casing. Adjust initial static gap between probe tip and rotor target according to calibration data. Lock nut tightly after gap adjustment to prevent loosening by machine vibration. Arrange cable with enough slack, avoid pulling force caused by thermal expansion. Route signal cable separately from high voltage power cable. Check target surface flatness and size before installation.
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