Rapid temperature change and humidity testing machine uses: for temperature stress screening test military, aerospace industry for electrical, electronics and other products, parts and materials for high-temperature rate of change of high and low temperature experiments and a variety of parts. Features: cooling mode has two options: 1. Refrigeration system to cool (no supplies for long-term use of high frequency test). 2. Auxiliary liquid nitrogen cooling (liquid nitrogen for supplies, the use of low frequencies for short-term tests. The new perfect design, the appearance of the texture of high quality, imported multifunctional, dedicated controller scalability, the simple, easy to learn, control and stability. Bright and spacious with large windows high brightness fluorescent lamps, so that users can always observing the status of the test chamber. full range of security protection to ensure the safety of the user and the machine itself. Special forced air circulation designed to avoid the airflow inside dead, promised to provide excellent temperature and humidity distribution uniformity coefficient of zero ozone using green (HFC) refrigerants R507, R23 can be connected to a computer, recorder (optional) Control Features: Imported type touch LCD display, with a 1400 total of 140 group segment program memory programmable control, in both English and written technical fault exception display parameters: Technical Specifications 150 (RS) 225 (RS) 408 (RS) 800 (RS) 1000 (RS) temperature range -70 ~ 150 ℃ (S), -40 ~ 150 ℃ (L), -20 ~ 150 ℃ (R) fast temperature change range of -55 ~ 85 ℃ (S), -30 ~ 85 ℃ (L), -10 ~ 85 ℃ (R) humidity range 20 ~ 98% RH temperature stability of ± 0.5 ℃ ± 0.5 ℃ ± 0.5 ℃ ± 0.5 ℃ ± 0.5 ℃ humidity ± 1% ± 1% ± 1 % ± 1% ± 1% of the temperature distribution are ± 1 ℃ ± 1 ℃ ± 1 ℃ ± 1 ℃ ± 1 ℃ humidity ± 2% ± 2% ± 2% ± 2% ± 2% deviation of temperature and humidity ≤ ± 2 ℃ / ± 3% RH Heating time 3 ℃ / min 5 ℃ / min 10 ℃ / min 15 ℃ / min 20 ℃ / min 25 ℃ / min 30 ℃ / min cooling time can be non-linear and linear 3 ℃ / min 5 ℃ / min 10 ℃ / min 15 ℃ / min 20 ℃ / min 25 ℃ / min 30 ℃ / min can be non-linear and linear within the H * W * D 50 * 40 * 40 60 * 50 * 40 60 * 50 * 50 100 * 100 * 80 100 * 100 * 100 (CM) outside the 143 * 100 * 85 153 * 100 * 85 153 * 100 * 95 153 * 100 * 95 153 * 100 * 95 Construction Material inside the box: SUS 304 # steel Carton: steel spray Plastic Insulation: PU foam + glass wool base: GB Jiaotie + channel air-cooled refrigeration system imported from Europe and the United States closed compressor, evaporator fins doubles as a dehumidifier; room temperature + 20 ~ 150 ℃ (A) Machine No heating type refrigeration system, heated humidification system: stainless steel finned tube heating air heating mode, humidification: stainless steel sheathed electric steam generating way no fuse overload protection device, compressor overheating, over-current, over-voltage, heating humidifying dry, inside over-temperature, water tank alarm system as standard concept of Windows (45 * 30cm), test hole (￠ 50 * 1-only), the sample holder (Group 2) over-temperature protection, window lights, time signal interface (group 2) 10.2 16.2 26.5 35.5 55.5 Power weight 4,805,807,509,001,200 power AC3 ￠ 380V50HZ.