FIELD: non-ferrous metallurgy. SUBSTANCE: heat flux from scum and electrolyte is measured by measuring the temperature above the scum. The device has a thermoelement as a temperature pickup. The control unit is made up as relay and timers. The temperature pickup is coupled with the coil of the relay through a terminal. The normally closed contact of the relay is connected to the timer of a drift. The normally open contact of the relay is connected with the timer of a batcher through a terminal. EFFECT: decreased power consumption. 2 cl, 2 dwg
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