Towards more reliable temperature measurements

June 13th, 2013, Published in Articles: EngineerIT

Numerous process conditions such as corrosive gases, turbulence or abrasion reduce the lifespan of various componentsof a thermometer: The simultaneous effect of corrosion and abrasion is often the root cause of measurement failure. For users this means that they frequently need to replace thermocouples at critical measuring points. Such measuring points increase the workload of the maintenance departments and drive up costs. Longer operating times reduce the total cost of ownership considerably. Temperatures of 1000°C and higher are required for glass, cement production and lime burning. The actual temperatures are of central importance to control and regulate the furnaces. If the required degree Celsius is not reached and maintained at a stable level, this can impact thequality of the end product. Measuring temperatures above 800°C places particularly high demands on the measuring technology used. In recent years, materials research has provided many new materials – both in the form of metal alloys and ceramic substances. Many of these have been examined and tested by Endress+Hauser. This has resulted in thermowells that withstand extreme process conditions far longer than previously thought possible.

Contact Trevor Fletcher, Endress+Hauser, Tel 011 262-8000,
info@za.endress.com

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