Bently 330780-51-00 Proximitor

Technical Specifications Applicable Probe: 3307 series high temperature wide range 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 Customized preamplifier matched for high temperature wide range eddy current probe. Generate high-frequency excitation signal for high temperature large probe coil. Convert probe impedance variation into linear analog voltage signal. Built-in self-diagnosis to detect probe cable open and short circuit fault. Aluminum alloy shielding housing for anti-electromagnetic interference. Customized terminal layout to meet site wiring requirement.

Application Scenarios Custom preamplifier solution for high temperature Bently 3307 probe system. High temperature area shaft vibration monitoring of large steam turbine and gas turbine. High temperature heavy compressor thrust bearing large displacement measurement. Power plant high temperature large rotor online condition monitoring. Petrochemical plant high temperature critical heavy rotating machinery protection system.

Structural Characteristics Cast aluminum alloy metal housing with customized mounting structure. Internal PCB integrated dedicated oscillator, signal conditioning and fault diagnosis circuit. Customized screw terminal block for power supply, probe signal and output signal. Cable entry openings for field wiring. Shielded metal housing structure.

Working Principle The dedicated oscillator produces matched high-frequency excitation signal and transmits to high temperature large probe coil. Eddy current generated on rotor surface changes coil impedance according to large gap distance. Signal conditioning circuit converts impedance variation into linear voltage signal reflecting gap value. The diagnostic circuit continuously monitors high temperature probe loop health status.

Installation Requirements Fix proximitor to customized rigid bracket, keep away from high temperature heat source. Connect high temperature 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.