Siemens Industrial Solutions and Services introduces the modular Wallace & Tiernan multi-functional controller/analyzer system in North America, which pairs a broad combination of drinking water analysis with disinfection and chemical control. Single or multiple wetsides can continuously measure as many as four water quality parameters such as free and total chlorine, chlorine dioxide, ozone, fluoride, conductivity, redox, pH and temperature. Integral control functions, such as flow proportional, direct residual, compound loop and set point trim are available for controlling the output of a chlorinator or metering pump. Standard output consists of four individual 4-20 mA output signals for control and selected measured inputs. Eight separate relays can be customer-assigned as any alarm contact or general fault alarm. The analyzer also supports a variety of digital communication formats. http://[email protected]