What is the cause of the abnormal temperature of the visokotemperaturna kutijasta otporna peć

①Termopar nije umetnut u peć, što dovodi do toga da temperatura peći ponestane kontrole.

②The index number of the thermocouple is inconsistent with the index number of the temperature control instrument, which will cause the furnace temperature to be inconsistent with the temperature displayed by the temperature control instrument.