Technical Specifications Probe Tip Diameter:18 mm Linear Measurement Range:0~4.06 mm Integral Cable Length:5m Insulation Material: PTFE Operating Temperature:-55℃ ~ +177℃ Connector: Microdot connector Frequency Response:0~10kHz
Functional Features 18mm large probe tip with wide linear measuring range. 5m integral cable for medium-distance measuring point layout. High temperature resistant probe and cable for high temperature field. Stable signal output under strong vibration working condition. Stainless steel threaded body with lock nut for gap calibration. Compatible with Bently 3300 series proximitor preamplifier system.
Application Scenarios Shaft vibration monitoring of large steam turbine and gas turbine. Thrust bearing axial displacement measurement of heavy centrifugal compressor. Power plant large generator rotor online condition monitoring. Petrochemical plant heavy rotating equipment protection system. Rotor displacement monitoring for large industrial fans and pumps.
Structural Characteristics Stainless steel threaded probe body with locking nut. High temperature PTFE insulated 5-meter integral cable. Hermetically sealed coil assembly inside probe tip. Microdot metal connector at cable end. Anti-loosening threaded locking structure for anti-vibration installation.
Working Principle Proximitor sends high-frequency alternating excitation signal to probe coil. Alternating magnetic field induces eddy current on metal rotor surface. The coil impedance changes with the gap between probe tip and rotor surface. The impedance signal returns through integral cable to proximitor and is converted into linear voltage signal to realize gap and vibration measurement.
Installation Requirements Install probe into threaded hole of machine casing. Adjust initial static gap between probe tip and rotor target according to calibration value. Tighten lock nut after gap adjustment to prevent displacement under vibration. Arrange cable route to avoid sharp bending and pulling force. Separate signal cable from high voltage power cable to reduce electromagnetic interference. Verify target surface flatness and size before installation.
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