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    Glass tank
      control 
       
      
      KS 98 application 
      Control of a glass tank 
       
      Description
       
      The production of high-quality
      glass, e.g. for the manufacture of TV picture tubes is a very complex
      process, that places high demands on accuracy and availability. 
       
      A glass melting furnace, the tank, is lined with fireproof bricks and
      covered by a hood. Heating is provided by burners at both sides of the
      tank, which are operated alternately by a control program. 
      
      
        
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