Technical Specifications Applicable Probe: Matched 3300 series 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 Produce high-frequency alternating excitation signal for eddy current probe. Convert coil impedance change 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 3300 eddy current measurement system. Shaft vibration and axial displacement monitoring of steam turbine and gas turbine. Power plant generator rotating machinery protection system. Petrochemical plant critical compressor condition monitoring. Online gap measurement of heavy-duty rotating rotor.
Structural Characteristics Cast aluminum alloy housing with mounting lugs. Internal PCB with oscillator, signal conditioning and fault detection circuit. Screw terminal blocks for power, probe input and analog output. Cable inlet for signal and power cables. Sealed housing for dust prevention.
Working Principle Oscillator circuit generates high-frequency excitation signal sent to probe coil. Eddy current induced on metal rotor surface changes coil impedance with 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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