YTC model YT-2500R is an electro-pneumatic Fail Freeze Positioner for use with a rotary valve actuator and is operated by an electrical controller or control system with an output signal of 4-20mA or split ranges. In addition, a highly efficient microprocessor operator performs various and powerful functions like auto-calibration, PID control, Alarm & Hart Protocol. It freezes in the valve’s last position when there is a failure in signal or air pressure.
-Fail Freeze Function
-Near zero air consumption
-Various valve characteristics such as linear, quick open and equal percentage are available as options.
-PID parameters can be adjusted easily in the field by button.