[1] Before using the low-temperature coolant circulating pump, a liquid medium (pure water, alcohol, antifreeze may also be added) in the tank. The medium level should not pass through the cooling coil in the tank and be lower than the working table by 20 mm. [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-base substances entering the tank to corrode the coil and the liner. [4] The instrument should be placed in a dry and ventilated place with no obstacles within 300mm around the instrument; [5] Always observe the level of the liquid level in the tank. When the liquid level is too low, the liquid medium should be added in time. [6] When the working temperature of the low temperature coolant circulating pump is low, care should be taken not to open the upper cover, and do not enter the tank to prevent frostbite; [7] After use, all switches are turned off and the power is turned off. [8] When the liquid is externally circulated, the customer should pay special attention to the firmness of the joint of the lead pipe to prevent it from falling off to prevent the liquid from leaking out. [9] The instrument should be cleaned regularly. If it is not used for a long time, empty the medium in the tank and wipe it clean to keep the work surface and operation panel clean. We provide wide range of herb tea cut, like echinacea tea, nettle leaf tea, dandelion root tea, valerian root tea and red raspberry leaf tea. We can provide blend herbal tea according to formula of customer and we also provide formula according to needs of customers. As one stop shop store of natural ingredients, tea bags like pyramid tea bag and string tea bag can be processed too. Private label is acceptable. Herb Tea Cut,Echinacea Tea,Nettle Leaf Tea,Dandelion Root YT(Xi'an) Biochem Co., Ltd. , https://www.ytlinkherb.com Precautions