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Constant Static Pressure (Limited Functions) PIC-5001-M Constant Static Pressure Controller with Indication     The PIC-5001-M is a dedicated analog electronic three mode controller with transducer, scaling circuit, and process indication; complete in a single package. The PIC-5001-M controller is used to control the supply fan speed to maintain an accurate and stable supply duct static pressure. Unlike other systems that incorporate a standard proportional band, reset (integral), and derivative (P,I,D) control, the PIC-5001-M incorporates inverse derivative with proportional and integral control (P,I,1/D), making the controller very responsive, without hunting and overshooting, as is often seen in standard less precise P,I,D controllers. The measured static pressure is independently indicated on a front mounted magnehelic pressure gauge scaled in inches of water column. PIC-5001-M Tech Data Sheet PC-5001 IO&M                             ABOUT Application Sequence