If spot measurements over one radius or several radii are sufficient for you to control your blast furnace processes, above burden probes are an alternative to the TMT SOMA™ measuring system. The measuring resolution and information content obtained are of course not comparable with a SOMA™ system that covers the entire surface respectively with an in-burden probe. Moreover, fixed installed probes affect the burden distribution. To avoid this negative influence on the burden, movable surface probes are also available that are only introduced into the blast furnace during the measuring cycle.
Thanks to their robust design combined with cooling, the TMT above burden probes work reliably around the clock. All details have been designed to achieve long service lives and as a result, low maintenance costs.