Microcomputer PID digital display controller, accurate temperature control, fixed value operation and timing operation (1300°C furnace has no timing function); The heating element is nickel chromium wire (carbon silicon rod for 1300°C furnace) which has good thermal conductivity; Stainless steel inner door liner, easy to clean; One-stage forming refractory brick with smooth surface; The insulation layer adopts ceramic fiber loose cotton and expanded pearl (1300°C furnace adopts ceramic fiberboard); Whole chamber outer wall ventilation design, which can keep the shell within 40°C during working; Over current, over-voltage, leakage, short circuit, open door power off and other safety protections.
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