Technical Specifications Probe Tip Diameter: 8 mm Linear Measurement Range: 0~2.03 mm Integral Cable Length: 5m Insulation Material: PTFE Operating Temperature: -55℃ ~ +177℃ Connector Type: Microdot connector Frequency Response: 0~12kHz
Functional Features 8mm probe tip with medium linear measuring range for rotating shaft measurement. 5m integrated cable adapts to medium-distance measuring point layout. High temperature resistant probe and cable for hot installation positions. Stable signal output under high speed rotation and strong vibration environment. Stainless steel threaded body with lock nut for convenient gap adjustment and locking. Fully compatible with Bently 3300 series proximitor system.
Application Scenarios Shaft vibration monitoring of steam turbine and gas turbine. Axial thrust displacement measurement of centrifugal compressor rotor. Condition monitoring of power plant generator and large pumps. Online protection system for rotating machinery in petrochemical plants. Rotor gap and vibration measurement of high-speed rotating equipment.
Structural Characteristics Stainless steel threaded probe body fitted with lock nut. High temperature PTFE insulated 5-meter integral cable. Hermetically sealed coil assembly inside probe tip. Microdot metal connector at cable terminal. Anti-vibration locking nut to prevent gap drift during operation.
Working Principle The proximitor sends high-frequency alternating excitation signal to the coil inside probe tip. Alternating magnetic field induces eddy current on the surface of metal rotor. The coil impedance changes with the gap between probe tip and rotor surface.
Installation Requirements Screw the probe into threaded mounting hole of equipment casing. Adjust initial static gap between probe tip and rotor target according to calibration requirement. Tighten lock nut firmly after gap setting to avoid loosening caused by machine vibration. Arrange cable path with proper slack to prevent tension from thermal expansion. Separate signal cable from high voltage power cable to reduce electromagnetic interference. Verify target metal surface flatness and size before installation.
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