Precautions for low temperature coolant circulating pump

Note [1] before using the low-temperature coolant circulating pump, add liquid medium (pure water, alcohol, antifreeze are also OK) into the tank The liquid level of the medium should not pass through the cooling coil tube in the tank and be 20 mm lower than the workbench 【2】 Power supply: 220V50Hz, the power supply should be greater than the total power of the instrument, and the power supply must have a good "grounding" device; [3] avoid acid and alkali substances entering the tank to corrode the coil and the tank 【4】 The instrument shall be placed in a dry and ventilated place, and there shall be no obstacles within 300 mm around the instrument; [5] always observe the liquid level in the tank, and when the liquid level is too low, add liquid medium in time [6] when the working temperature of the low-temperature coolant circulating pump is low, pay attention not to open the upper cover, and do not enter the tank by hand to prevent frostbite; 【7】 After use, all switches shall be turned off and the power supply shall be cut off; [8] when the liquid is circulated outside, the customer shall pay special attention to the firmness of the connection of the outlet pipe and prevent it from falling off to prevent the liquid from leaking out 【9】 The instrument shall be cleaned regularly If it is not used for a long time, the medium in the tank shall be emptied and wiped clean to keep the working table and operation panel clean.