Emerson Process Management’s network of Fisher wireless position monitors has helped Harcros Chemicals monitor valves previously unconnected to the plant’s control system. The Fisher 4320 position monitors are components of Emerson’s Smart Wireless family, and they change project economics since they represent only 10% to 20% of the installed cost of a wired solution. Harcros uses manual valves for sampling, directing, injection and extraction processes at its chemical production facility in Kansas City, Kansas. The new Fisher 4320 wireless communicating position monitor can be used to monitor the position of any valve anywhere in the plant. The wireless instrument provides frequent, wireless updates about the valve’s position while reducing the time and risk associated with visual inspections. The 4320 monitor uses industry-standard WirelessHART communications. The Fisher wireless device monitors equipment such as valves, regulators, louvers, displacement and float level sensors, and relief valves in standard and hazardous area locations. With its patented, non-contacting rotary and linear monitoring, the 4320 is adaptable to most applications for which a % of span is desired.
