1. Power failure alarm: When the machine is in normal running state, the power supply will be suddenly lost, and the power failure alarm will be triggered. When the power is off, the oxygen generator is accompanied by a continuous beep, the red alarm light is on, and the display is black (if you need to continue using it, check if the power supply is normal)
2. Low oxygen concentration alarm: When the oxygen generator is used, 53% ≤ oxygen concentration ≤ 82%, the oxygen generator works normally, and the yellow light is on (the oxygen generator is not abnormal, please adjust the flow to the maximum recommended) Use below the flow rate)
3. Oxygen concentration red light alarm: When the oxygen generator is used with oxygen output ≤ 53%, the oxygen generator is accompanied by a beep, the red alarm light is on, and the oxygen generator stops working (check if the machine is abnormal and the flow rate is adjusted too much)
4. Machine overheat protection: When the internal temperature of the machine is too high, the compressor thermal protection device starts, the compressor stops, the display is normal, the fan heats normally, and no oxygen is generated. After the compressor temperature drops, the machine operates normally to supply oxygen.