Vibration Monitoring Sensors – efector Octavis System Makes Real-Time Machine Maintenance Easy
Consider this compact device a type of OnStar for your plant equipment. The efector Octavis condition monitor provides real-time monitoring on critical plant equipment such as pumps, motors, compressors, fans and spindles. efector Octavis is permanently mounted on equipment to detect rolling element bearing failures and rotor unbalance conditions. The device continuously monitors a machine’s operating condition through vibration analysis. Octavis has the processing capability to analyze a vibration signature and to predict failures in advance by sending an alarm output signal to a PLC or relay.
The efector Octavis monitor incorporates a MEMS accelerometer, analog-to-digital (A/D) converter, digital signal processor (DSP) and diagnostic electronics in a compact 40x40mm package. These electronic components enable the monitor to gather, process and interpret vibration data. The accelerometer monitors the acceleration value via a change in capacitance signal. The A/D converter transforms the analog signal from the MEMS sensor to a digital signal. An integrated DSP performs mathematical calculations to convert the time domain vibration signal into a frequency domain signal. The process is known as Fast Fourier Transformation (FFT). The integrated DSP can process up to 32,000 calculations per second.
Configuration software is used to input application parameters such as bearing type and shaft speed. These inputs allow Octavis to monitor critical frequencies in the vibration spectrum and ignore external noise. One efector Octavis condition monitor can detect up to five different rolling elements on a single machine.
Once the Octavis monitor has been mounted and parameterized, the condition of the bearings and shaft are indicated through a “traffic light” bar graph display. Green LEDs indicate normal operating conditions; yellow LEDs indicate early warning (switching output 1); and red LEDs indicate critical alarm warning (switching output 2).
A standard Micro DC connector is used to connect the monitor to a power source or output device. A PC or laptop is temporarily connected to the monitor for setup via its RS232 connector and setup cable.
To learn more or shop online, visit ifm’s vibration sensors and machine condition monitoring page.