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 Generate high-frequency excitation signal for eddy current probe coil. Convert probe impedance variation into linear analog voltage signal. Built-in self-diagnosis for probe cable open and short circuit fault. Aluminum alloy shielding housing for anti-electromagnetic interference. Product documents with Chinese description for domestic engineering commissioning. Screw terminals for convenient field wiring operation.
Application Scenarios Eddy current measuring loop preamplifier for domestic power plant turbine monitoring. Centrifugal compressor shaft vibration and thrust displacement measurement in petrochemical plant. Large generator set rotor online condition monitoring. Critical rotating machinery protection system. Heavy-duty pump and fan rotor non-contact gap measurement.
Performance Parameters Output linearity: Matched with corresponding 3300 probe calibration curve Fault diagnosis: Real-time monitoring of probe circuit integrity Temperature stability: Low signal drift within full working temperature range
Structural Characteristics Cast aluminum alloy metal housing with mounting lugs. Internal PCB integrated oscillation, signal conditioning and fault diagnosis circuit. Screw terminal block for power supply, probe signal and output signal. Cable entry openings for field wiring. Shielded metal housing structure.
Working Principle The internal oscillator produces high-frequency excitation signal and transmits to probe coil. Eddy current generated on rotor surface changes coil impedance according to gap distance. Signal conditioning circuit converts impedance variation into linear voltage signal reflecting gap value. The diagnostic circuit monitors probe loop health continuously.
Installation Requirements Fix proximitor to rigid mounting bracket. Connect probe extension cable to signal terminals according to wiring drawing. Connect -24V DC power supply without polarity reversal. Ground aluminum housing to system protective ground. Keep signal cables away from high voltage power lines. Check signal output after wiring completion.
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