TS800R,TS800L Smart Valve Positioner tissin TS800 Smart Valve Positioner control valve stroke in response to input ** of 4-20mA from control panel, DCS, or calibrator. - LCD and 4 button local control - Quick and easy calibration - PST and alarm function - Auto/Manual switch included - Built-in self-diagnostic function - Modularization of the internal parts - IP66 / NEMA4X - Improvement of valve control speed by applying large flow pilot valve - Strong vibration resistance and impact resistance