... with multiple protection devices, to improve reliability.4.clever duct structure, small temperature deviation5.Door with observation window, the ... 130°C in 70 minutes, -40°C-+130°C in 80 minutes, -60°C-+130°C in 80 minuts Cooling time+20 ... Safety devicesample over-temperature protection, leakage protection, overload the fan, compressor over-voltage, overload, overcurrent protection, phase sequence ...