Technical Specifications Applicable Probe: Matched 3300 series proximity probe Power Supply: -24V DC Output Signal: Linear gap voltage signal Operating Temperature: -40℃ ~ +70℃ Mounting: Customized 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. Customized structure to meet site engineering installation requirement. Screw terminals for power supply, probe signal and output signal.
Application Scenarios Custom preamplifier solution for Bently 3300 eddy current measurement system. Shaft vibration and thrust displacement monitoring of turbine and compressor. Power plant generator rotor online condition monitoring. Petrochemical plant critical rotating machinery protection system. Heavy-duty pump and large 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 customized mounting structure. 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 continuously monitors probe loop health status.
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