Jinling High and Low Temperature Laboratory

reference standard

This product meets the requirements of GB2423.1-2001 Test A "High Temperature Test Method"; GB2423.2-2001 Test B "Low temperature test method"; GB2423.3-93 Test Ca "Constant Damp Heat Test Method" and other relevant national standards requirements. Designed and manufactured strictly in accordance with GB 1059289 "Technical Conditions for High and Low Temperature Test Chambers" and GB10586-89 "Technical Conditions for Damp Heat Test Chambers", various high and low temperature damp heat environment tests can be conducted.

structural design

The shell of the high and low temperature damp heat test equipment is made of high-quality A3 steel plate surface treated with spray coating, with a circular arc design and smooth and natural lines. The inner liner is made of high-quality SUS304 stainless steel plate, which can continuously control the test temperature difference within ± 2 ℃. The indoor sample rack and other accessories are made of SUS304 stainless steel material. The insulation material for the equipment is high-density fiberglass cotton, and a transparent window is set on the box door to observe the changes in the indoor samples. The observation window is made of multi-layer insulated tempered glass and has a laminated conductive film on the inside

The humidity adopts stainless steel boiler steam humidification method, high-precision PT100 with wet cloth induction, fast response and precise control. At the same time, it eliminates the problem of water freezing affecting the temperature during low-temperature testing of shallow water humidifiers. The mixing system adopts a long axis fan motor to ensure uniform and stable temperature and humidity in the laboratory. A double-layer high-temperature resistant high tension sealing strip is used between the door and the box, and the test hole (on the left side of the machine) can be used for external testing power or signal lines (the aperture or number of holes can be determined according to customer instructions). The refrigeration system of the equipment is installed at the bottom, and the compressor adopts the French imported Taikang brand to ensure refrigeration efficiency and reliability. The refrigerant is environmentally friendly. High quality fixed PU movable wheels are installed at the bottom of the machine, making it easy to move the machinePosition and finally secure the casters.

control system

The high and low temperature damp heat test equipment generally adopts the "TEMI300" liquid crystal display programmable temperature controller imported from South Korea or the "OYO" temperature and humidity control instrument imported from Japan. It is an intelligent high-precision digital PID microcomputer temperature control instrument with thin film buttons, touch setting, digital and direct display, and humidity direct display percentage. The temperature sensor adopts PT100 platinum resistance tester. The temperature control adopts the thermal balance temperature adjustment method. The TEMI300 liquid crystal display programmable temperature controller imported from South Korea can be used for program testing, with multiple sets and segments of programming operations, optional settings for setting values and programs, and the ability to set time arbitrarily. The main electrical components of the equipment, such as circuit breakers, AC contactors, and small relays, are all made of Schneider brand, while other electrical accessories are made in China.

Heating, cooling, and dehumidification system

The heating adopts far-infrared nickel chromium alloy high-speed heating wire, with a high-temperature independent system that does not affect low-temperature testing. The humidity adopts stainless steel tube with built-in nickel chromium alloy high-speed heating wire and high-temperature magnesium oxide powder, with fast reaction and long service life. The refrigeration compressor adopts fully enclosed French Taikang, with mechanical refrigeration for cooling or dehumidification, forced air cooling for condensation, independent heating and cooling systems, and imported original parts for drying filters, refrigerant flow windows, repair valves, oil separators, solenoid valves, and liquid storage tanks.

Ultra low temperature or large volume low-temperature test chambers use German imported "valley wheel" air-cooled and water-cooled compressors.