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ifm introduces efector octavis for successful predictive maintenance programs

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efector octavis evaluates vibration signals using the methods of frequency analysis. The system uses a micromechanical acceleration sensor. Data can be collected, processed and evaluated decentrally with no expert know-how required.

efector octavis is designed for the early detection of rolling element bearing damage or unbalance. Continuous monitoring offers a reliable and cost-effective solution compared to intermittent methods.


The unit type VB1001 monitors up to two different objects. The unit type VE1001 can monitor up to five different objects or 20 individual frequencies. An object is defined as a rolling element bearing or a shaft.

Acoustic emission is detected, the frequency spectrum is calculated and the rolling element bearing state, the unbalance etc. are evaluated. The condition can be directly read on site and is signalled by binary switching outputs. The switching signal can be transmitted via unscreened cables. Connection to bus systems is possible.

efector octavis parameters are easily set at the PC via the RS232 interface (accessory article no. E11572). Permanent safe mounting with the efector octavis mounted in a radial direction referred to the axis of rotation. The signal transmission can be checked with an impulse tester (accessory article no. E30082). Setup via pushbutton after mounting by pressing the Teach button, the reference conditions for the application is transferred to efector octavis.

Applications include critical plant equipment such as pumps, motors, compressors, fans and spindles can be monitored by vibration analysis.

Failure in bearing applications can be due to wear, misalignment, and lubrication problems. efector octavis monitors the inner race, outer race and rolling elements of a bearing. In shaft unbalance applications, efector octavis reliably detects unbalance at an early stage. Condition diagnosis allows predictive action to prevent big damage or downtime. In order to monitor unbalance, the rotational speed is required as a parameter.

ifm’s octavis sensors integrated MEMS accelerometer measures vibration and diagnostic electronics to process and interpret data. It eliminates expensive hardware and time based vibration readings.

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