Siemens has launched a single measurement unit that complements its current analyser and controller offering.
The Single Function Controller (SFC) is useful in the measurement and control of disinfectants, allowing devices such as dosing pumps, electric stroke positioners and continuous actuators to maintain accurate and measured concentrations in one single unit, according to the company.
The controller offers a choice of four control options.
The flow proportional control option enables the adjustment of the feed rate based on the current process flow, whereas the feed forward control adjusts the feed rate in proportion to an external measurement input or optional measurement module. Both closed-loop and compound loop control maintains a desired setpoint based on a measured value, however, the compound loop control also allows for fluctuations in the water flow.
The modular design of the SFC consists of an electronic module, a flow cell module and a sensor measuring module.
According to the manufacturer, this enables more than one parameter to be measured by combining more electronic modules together using a CAN sensor / actuator bus.
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