Severn Trent Services’ controllers can read a chlorine residual signal, a flow signal or both for control of chlorine dosing. Additionally, "before and after" chlorine analyzers can be used in conjunction with a flow input to provide very refined control of the chlorination process.
The Captrol Series 1450 and 1451 process controllers are microprocessor based and suitable for a broad range of chemical feed and disinfection applications.
