The Bearing Fault Detector is a DIN rail mount vibration transmitter that works in conjunction with a typical ICP® accelerometer. It supplies the constant current power required by the accelerometer, processes data and has the following three outputs: 4-20 mA proportional to peak amplitude, 4-20 mA proportional to overall vibration level and raw vibration signal via BNC connector for diagnostic analysis. To obtain peak amplitude (measured in a 7 second window) the signal is passed through a high pass filter, rectified and run through a high speed peak detection circuit. To obtain overall vibration level, the signal is passed through a low pass filter, integrated when velocity is required, processed through a true rms circuit and scaled, depending on the desired output type (rms or calculated peak). Bearing Fault Detector output is compatible with any vibration monitoring device or plant equipment that accepts a 4-20 mA signal. It can provide 24/7 protection when used with a PLC, DCS, or SCADA system. It can also be used with numerous off-the-shelf meters, alarms and recorders.