Vibration Switches
Vibration Switch is a device that recognizes the amplitude of the vibration to which it is exposed and provides some sort of response when this amplitude exceeds a predetermined threshold value. The switch response is typically an electrical contact closure or contact opening. The electrical contact may be either an electromechanical relay or solid-state triac.
Vibration switches are primarily used for protecting critical machinery from costly destructive failure by initiating an alarm or shutdown when excessive vibration of the machinery is detected. Conversely, a vibration switch can be utilized to warn of the absence of vibration, such as when a conveyer ceases to function due to a broken drive belt.
The Vibration Switch is a safety device designed for protecting rotating machinery such as motors, generators, engines, pumps and fans from abnormal levels of vibration. The switch trips if the vibration level becomes excessive, shutting down the device being protected. The switch operates by means of a magnetic air gap, with an increased air gap for low vibration and a decreased air gap for high vibration levels. The air gap can be adjusted to set the sensitivity of the switch.
Application
- Shut down switch that operates in response to excessive vibration
- Protects rotating machinery such as motors, generators, engines, pumps and fans from damage due to abnormal vibration