Presented by Emerson's Michael Pearson and Roy Gueldenzoph at the 2011 Emerson Exchange in Nashville, TN USA. Abstract: Many measurement challenges exist when monitoring high temperature assets such as Arc Furnaces, including high temperature, moving platforms, and high EMI. Northstar Bluescope Steel had all of these problems and more. They used these points for control, and their only solution was shutting the furnace down and replacing the wires often. By implementing an Emerson Smart Wireless technology, the customer was able to reduce or eliminate all of these measurement challenges, resulting in greatly reduced maintenance costs, and additional throughput.

1. When the Heat is On, Control with Wireless

4. Wires have problems! Especially in High Heat… Slag… Brittle Wires… Measurement Drift… EMI…

5. Wired Architecture Eight Sensor Wires Large Field Junction Box With Marshalling Bundled Sensor Cable Control Room Large Marshalling Cabinets and Many I/O Cards 100 Meters 20 Meters

7. Wireless Architecture Control Room

9. Wireless Transmitters Work in the Harshest Environments Temperature Transmitters

16. Installation Pictures 848T Protective Box, before operation 848T Protective Box, after operation

17. Other Wireless Applications Wireless Transmitter Monitoring Exhaust Hood @ > 800°C Heat-Mangled Transmitter – Still Functioning Perfectly

18. Wireless Transmitters in High Heat 648 near opening of Arc Furnace Close-up of 648 Protective Box