Electronic-pneumatic Valve Positioner ,Series YT-1000，include YT-1000L and YT-1000R.

YT-1000 electric pneumatic positioner is used for rotary operation of pneumatic rotary valve actuators by means of electrical controller or control systems with an analog output signal of 4 to 20 MA or split ranges; YT-1000 electric valve localizer that is incompatible with actuators, and receipt 4~20mA DC current signal from controller or control system, then transfer into air pressure what transfer to the actuator which connect with it , in order to control value position