Product overview: International advanced fluorine-free refrigeration system is adopted. The microcomputer intelligent control refrigeration system opens automatically. The refrigeration system has multiple protection devices such as delay, overheat and over current. It can provide low-temperature liquid and low-temperature water bath. There are large flow, high pressure circulating pump, high pressure, high temperature, high strength plastic surface single, side plane humanized operation panel, small volume, large refrigerating capacity, can be conveniently placed under the test table, do not occupy the space. It can be used for circulatory refrigeration of rotating evaporator, vacuum freeze drying box, circulating water vacuum pump, uv spectrophotometer, magnetic stirrer and other instruments, and carry out chemical reaction, biological reaction and drug reaction at low temperature. Used in conjunction with 2 l ~50 l rotary evaporator instead of water condensation, especially at low boiling point or heat sensitive material evaporation when condensing water. For high-temperature or water-scarce areas, the use of DL series products can meet the need of saving water and ensuring rapid cooling by cooling instruments. Microcomputer intelligent control system, fully closed compressor refrigeration, microcomputer can set 0~100 hours of time shut down; Temperature range + 50 ℃, digital display accuracy + / - 0.1 ℃, the microcomputer can be fixed temperature measurement deviation, adopts double window, two colors red, green, LED display the temperature value and temperature measurements, also can choose large screen LCD screens. Microcomputer software lock function; All the operations are carried out on the soft key of computer touch, the operation is simple. The circulating pump can output the internal cooling fluid of the tank (machine), cool the experimental vessel outside the machine or establish the second constant temperature field. Main technical parameters: Minimum working temperature: - 10 ℃ Volume of cold slot: 15L Cooling power: 800W Constant temperature precision: plus or minus 0.3 ℃ Pump flow: 13 L/mi Drain: yes Net weight: 51 Kg Package size: 505 x 480 x 1015 mm