Technical Specifications Applicable Probe: Bently 3307 series large range proximity probe Power Supply: -24V DC Output Signal: Linear gap voltage signal Operating Temperature: -40℃ ~ +70℃ Mounting: Bracket mounting Housing: Cast aluminum alloy shielding housing
Functional Features Special oscillator circuit for large range eddy current probe excitation. Convert large probe impedance variation into linear analog voltage output. Built-in circuit to detect probe cable open circuit and short circuit. Metal shielding housing reduces external electromagnetic interference. Screw terminal design for convenient wiring and maintenance. Suitable for long-term continuous operation in industrial cabinet.
Application Scenarios Pre-amplifier unit of Bently 3307 wide range eddy current measurement system. Large gap shaft vibration and axial displacement monitoring of heavy turbine and compressor. Power plant large rotating machinery protection system. Petrochemical plant heavy compressor condition monitoring. Online large clearance gap measurement of heavy-duty rotating rotor.
Structural Characteristics Cast aluminum alloy housing with mounting lugs. Internal PCB with special oscillator, signal conditioning and fault detection circuit. Screw terminal blocks for power, probe input and analog output.
Working Principle Special oscillator circuit generates high-frequency excitation signal sent to large range probe coil. Eddy current induced on metal rotor surface changes coil impedance with large gap distance. Signal conditioning circuit converts impedance change into linear voltage proportional to gap.
Installation Requirements Mount proximitor on rigid flat bracket.
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