Technical Specifications Applicable Probe: Matched 3300 series proximity probe Power Supply: -24V DC Output Signal: Linear gap voltage signal Operating Temperature: -40℃ ~ +70℃ Mounting: Panel or bracket mounting Housing: Cast aluminum alloy housing
Functional Features Generate high-frequency excitation signal for eddy current probe coil. Convert probe impedance variation into linear analog voltage signal. Built-in fault diagnosis for probe cable open circuit and short circuit. Stable signal output under industrial electromagnetic interference. Aluminum alloy housing provides electromagnetic shielding. Wide compatibility with matched 3300 series proximity probes.
Application Scenarios Eddy current measuring loop preamplifier for rotating machinery monitoring. Shaft vibration and axial displacement measurement for steam turbine and compressor. Power plant generator set condition monitoring system. Petrochemical plant critical machinery protection system. Online non-contact displacement measurement for heavy rotating equipment.
Structural Characteristics Cast aluminum alloy metal housing for shielding. Internal PCB integrated oscillation circuit, signal processing and diagnostic circuit. Terminal blocks for power supply, probe signal and output signal. Mounting lugs for bracket installation. Sealed structure for dust and moisture resistance.
Working Principle Internal oscillation circuit generates high-frequency excitation signal and sends it to probe coil. The coil impedance changes with the gap between probe tip and rotor. The signal processing circuit converts impedance change into continuous linear voltage signal proportional to gap value. The diagnostic circuit monitors the integrity of probe measuring loop in real time.
Installation Requirements Fix proximitor housing on rigid mounting bracket with bolts. Connect probe and extension cable to signal terminal according to wiring diagram. Connect -24V DC power supply to power terminals. Ground aluminum housing to protective ground bus. Keep away from high voltage cables and high-power equipment. Verify output voltage after wiring completion.
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