Haydon Kerk Motion Solutions now offers an integrated end-of-stroke proximity sensor available on the one inch 25000 Series captive linear actuators. The proximity sensor utilizes miniature hall effect technology in an IC package mounted directly on the actuator. The hall effect technology has a virtually unlimited on-off cycle life due to the non-contact operation of the switch and is perfect for limited space applications. A highly repeatable on/off signal is accomplished using a rare earth magnet embedded directly on the end of the internal screw. As the screw moves in and out of the actuator, the magnet moves toward and away from the sensor face causing the device to switch states. The proximity sensor is designed to operate in a digital switch mode using an open-collector output through an integrated NPN transistor switch. The proximity switch is a 3 wire device and requires a supply voltage of 3.8 VDC minimum to 24 VDC maximum with a current consumption of 10mA max.
