Input and output signal use optical isolation

As the actuator directly receive switch signal to drive regulatory agencies for processing control. Valve position signal 4～20mA, feedback output, signal transmission need welded cable to connect

As motor power, control, feedback signal all go through same connector, same time electric actuator installed in each production field, this do troubles for adjusting electric actuator. So we company product actuator calibrator——need not external power, connected to electric actuator with cable connector