Vibration sensor for reporting vehement vibrations ? Microswitch with weight steel Sensivity can be adjusted by moving the weight up-/downwards. Is mounted vertically with the weight upwards. Part of the safety chain. The Vibration Sensor XCK-M/Weight The vibration sensor will by strong vibrations activate an internal microswitch. When the microswitch is activated, the vibration sensor will change the state potential free relay from open to close (13/14) and from close to open (21/22). The vibration is normally a part of the safety chain and will by activation stop the machine i. e. the turbine. The sensivity can be adjusted by moving the weight up-/downwards. The sensor is mounted vertically with the weight upwards.