Product profile: It is used in national defense industry, aerospace industry, auto parts, electronic and electrical parts, plastics, chemical industry, pharmaceutical industry and related products for heat and cold resistance testing, providing large parts and semi-finished products for industry, The large temperature and humidity test environment space of finished product is suitable for the test equipment with large quantity and large volume. Technical parameters: Model number:LTH-()P(S)-(A、B、C、D)LCT-()P(S)-(A、B、C、D)LRT-()P(S) Model description:P representative programmable (touch screen control),S type stands for standard type (microcomputer digital display control) Temperature range:-60℃~ 80℃ A:0℃ B:-2℃ C:-40℃ D:-60℃ RT+10℃~80℃ Humidity range: 30~95%RH Control accuracy: P ±0.5 ℃±3% RH S ±1 ℃±5%RH P ±0.5 ℃ S ±1 ℃ Display accuracy: P type 0.01 C 0.1% RH S type 0.1 C 1%RH P 0.01 C S type 0.1 C Temperature rise time : approx . 60 min Cooling time:A:90 min B:120 min C:180 min D:210 min Safety device: leakage and overload protector, compressor overload protector, overheat protection device, emergency power-off device Power: AC3 380V 50HZ Main features: 1. Large environmental laboratory can provide large parts, semi-finished products and finished products for temperature and humidity environmental testing. It is mainly composed of control panel, distribution panel, heat preservation board, air supply board, heater, humidifier and freezer. 2. The color storehouse board unit combination, the inside cellar can be arbitrarily enlarged, disassembles and assembles easily, may according to the customer size design and the cooperation expansion factory migration. 3. The horizontal diffusive vertical heat exchange circulatory system with multi-wing centrifugal air supply is adopted to avoid any dead angle and make the indoor temperature and humidity distribution even. 4. The freezer adopts the imported compressor from Europe and the United States, and uses environmental protection refrigerant. The refrigerating system is designed by using binary low temperature loop system, and different compressors are used in different temperature regions to perform work in order to save the service life of the equipment. 5. The control system can be connected by the RS-232 interface to the computer. Users can design programs on the computer screen, collect test data and records, call program execution, remote control machine switch and other functions. 6. When the abnormal condition occurs, the fault state is automatically displayed on the controller screen, the power switch is cut off, and the troubleshooting method is provided. 7. It has the function of timing mark contact, which can make the external output control contact during operation, and provide users with dynamic test and computer monitoring. 8. The storage board material adopts stainless steel material and steel plate baking lacquer material, the structure is firm, waterproof and beautiful.