Optical coil protection of 2 induction furnaces at A?lips N. V ., Tienen, Belgium LIOS DTS technology is being used for the OCP system to protect the integrity of the refractory lining of two 2.5-tonne vacuum-type coreless induction furnaces used for melting copper pre-alloys. These particular furnaces are operated in three- shifts to produce copper-iron pre-alloys. Such alloys pose exacting demands on the crucible material due to their aggressive chemical characteristics and ?uidity. The tapping temperature is in the region of 1500 °C. Materials+Concept 1 OTS20P Controller, 2 channel ?bre switch Simultaneous monitoring of two 2.5 t furnaces (1200 kW, 200 Hz) Connected to the JOKS-visualisation system via serial interface. High precision measurement with 27 cm spatial resolution and less t

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