Wireless technology helps meet environmental requirements

摘要

Smart Wireless technology from Emerson Process Management consisting of Rosemount wireless conductivity transmitters are helping prevent the discharge of chemicals into the local environment at a paper mill in Sweden. Korsnas Gavle is using Emerson Process Management's Smart Wireless conductivity and temperature transmitters to collect critical leak-detection monitoring data at its board and paper production unit at Gavlebukten, Sweden. Improved monitoring enables the company to verify its compliance with environmental monitoring legislation. Water from heat exchangers at the Gavlebukten plant is carefully monitored prior to its return to the sea. Small internal leaks may result in the discharge of hazardous chemicals into the local environment. Any leak of acids, bases, or salts will raise the electrical conductivity of the water and is easily detected using a conductivity sensor. A renovation project within the utilities section meant that I/O supporting existing instrumentation was to be removed. Korsnas Gavle therefore needed an alternative way to transmit the required measurements to the main control room.