The DeviceNet™ DELTA™ II Flow Ratio Controller is a critical process control instrument in the MKS line of digital control, web-enabled products providing the latest in gas flow ratio measurement and control technology necessary to meet the demands of multi-channel flow distribution. It divides and controls mixed process gas flows to either multiple chambers or zones within a process chamber at ratios specified by the user maximizing process uniformity and repeatability. Send DELTA™ II a gas - or any mixture - and a ratio set point and it will split the gas into two separate output channels automatically and precisely. DELTA™ II mass flow ratio controller is used in a variety of flow splitting applications such as etch, strip, and CVD.