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Process-control functionality for thermal mass flowmeters

| By Chemical Engineering


The new PCU Series of controllers (photo) connect to thermal mass flowmeters to provide a local display of flow output. Serving as a single- or multi-channel mass-flow controller with up to four channels, the PCU controller supports multiple-unit networked operations. A large, high-contrast backlit display offers easy-to-read views of process variables and programmed setpoints for each connected device on one screen. The PCU Series offers process-control functionalities for batching, setpoint control, resettable dual totalizer and valve-override control. Gas-factor scaling allows users to set units to any fluid. Units are programmable to provide alarm status for high and low rates both visually and audibly. — AW-Lake Co., Oak Creek, Wis.