Automation Components Inc (ACI) PTS4.1 Control

PTS4.1 - The PTS4.1 converts two digital (increase/decrease) signals from relay contact closure transistor or triac inputs into proportional pneumatic signals of 0-1 5-15 or 0-15 psig or 0-6 34-10 or 0-103 kPa (jumper selectable). The pneumatic output increases when the UP input is o or decreases when the DOWN input is on. The pneumatic output changes full scale (from minimum to maximum) in 90 second with 255 steps of resolution. The PTS4.1's closed loop electronic design will maintain the last commanded pneumatic pressure. An on-board microprocessor measures the signal inpu and a solid-state pressure transducer measures branch line pressure. The PTS4.1 uses these two values to automatically increase or decrease branch line air pressure. In the event of a power failur both PTS4.1 valves clos shutting off main air and branch line bleed. If a power brown-out occur the PTS4.1 automatically reboots (resets) its on-board processor. During a power brown-ou power to the processor on the PTS4.1 is shut down (pressure output remains same). When proper power level is restore processor automatically powers u and branch pressure output defaults to 0 psig.  The PTS4.1 is covered by ACI's Two (2) Year Limited Warranty. Compressor staging application Closed loop control