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​The SCI-552 is a system controller for ozone delivery systems that provides electronic control interfaces for a number of typical system components, including: ozone generators, EV valves, mass flow controllers, back-pressure controllers, Teledyne API 452 ozone sensors, Teledyne API 470 dissolved ozone sensors, and a water chiller.

​The SCI-552 features hardware and software support for a number of system interlock functions. The SCI-552 provides flexibility for the end user, allowing control of the system via the front panel user interface, MODBUS serial interface, or various discrete digital and analog I/O points. The SCI-552 is designed to support two ozone generators providing two independent channels of ozone output.​​