EP800系列电气阀门定位器与气动执行机构配套使用，输入4~20mADC的信号转换输出空气压力，控制执行机构的动作。同时根据执行机构的行程进行反馈，从而使执行机构的行程能
按控制信号进行精确定位。EP800系列电气阀门定位器能用于单动作型和双动作型执行机构。　　The EP800 Series Positioner, mounted on a pneumatic actuator,moves the actuator by receiving DC 4~20mA signals from a controller.Also, the function of detecting and returning the actuator displacementprovides accurate positioning in response to DC 4~20mA signals.
The EP800can be used with both springreturn and double acting actuators.

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