ControlEdge™ HC900 The ControlEdge™ HC900 process automation controller is an ideal control solution for user needs ranging from thermal control in boilers, furnaces, kilns, & dryers to unit processing in pharma, chemical, bio-fuel, pilot-plant & other applications What Is It? The ControlEdge HC900, belonging to the ControlEdge 900 Platform, is an advanced process and logic controller with a modular, scalable design that is built to work with a wide range of process