Technical Specifications Input Signal: Eddy current probe signal / accelerometer vibration signal Input Channels: Multi-channel vibration input Measurement Parameters: Amplitude, peak-to-peak vibration value Frequency Range: 0~12kHz Operating Temperature: 0℃ ~ +60℃ Storage Temperature: -40℃ ~ +85℃ Power Supply: Supplied by 3500 rack backplane Dimension: Standard single-slot plug-in module
Functional Features Simultaneous acquisition of multi-channel vibration signals. Calculation of peak-to-peak vibration amplitude for rotating shaft. Configurable warning and danger alarm thresholds for each channel. Built-in comprehensive self-diagnosis of sensor and cable circuit. Front panel LED indicators for channel status and alarm. Hot-swap support for online module replacement.
Application Scenarios Shaft vibration monitoring and protection of steam turbine and gas turbine. Centrifugal compressor rotor vibration online supervision. Power plant generator and large pump machinery protection system. Petrochemical plant rotating equipment condition monitoring. Industrial high-speed rotating machinery vibration interlock protection.
Structural Characteristics Standard single-slot plug-in design matching Bently 3500 rack. Front panel LED for power, channel fault and alarm indication. Front terminal block for field sensor signal wiring. Backplane golden finger interface for rack bus and power supply. Metal shielding housing and anti-vibration locking latch.
Working Principle Vibration signal from proximity probe or accelerometer enters the module. Hardware filter removes high frequency interference. Internal circuit calculates peak-to-peak vibration amplitude. Measured value is compared with preset warning and danger threshold. When vibration exceeds threshold, alarm or trip event will be generated and transmitted to relay module and rack system. Built-in diagnostic circuit monitors sensor loop health continuously.
Installation Requirements Insert module into corresponding slot of Bently 3500 rack. Connect proximity probe or accelerometer signal cable to front terminals. Set measurement unit, alarm threshold and sensor type by Bently software. Use shielded twisted pair cable for field signal wiring. Separate signal cable from high voltage power cable. Complete channel calibration after installation.
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