High and low temperature test box for the location and use of the site Operational instructions This test must not be used for the following substances or tests containing these substances: First, explosives: 1. Nitrified glycol (ethylene glycol dinitrate), nitroglycerin (glycerol trinitrate), nitrocellulose and other explosive nitrates. 2. Trinitrobenzene, trinitrotoluene, trinitrophenol (picric acid) and other explosive nitro compounds. 3. Peracetic acid, methyl ethyl ketone peroxide, benzoyl peroxide and other organic peroxides. Second, combustibles: 1, pyrophoric materials: Metal: "lithium", "potassium", "sodium", yellow phosphorus, phosphorus sulfide, red phosphorus. Celluloids: calcium carbide (calcium carbide), phosphating lime, magnesium powder, aluminum powder, sodium hydrogen sulfite. 1. Oxide properties: (1) Potassium chlorate, sodium chlorate, ammonium chlorate and other chlorates. (2) Potassium peroxylate, sodium peroxylate, ammonium peroxylate and other peroxyacid salts. (3) Potassium peroxide, sodium peroxide, barium peroxylate and other inorganic peroxides. (4) Potassium nitrate, sodium nitrate and other nitrates. (5) Potassium hypochlorite and other hypochlorites. (6) Sodium chlorite and other chlorites. Third, flammable materials: (1) ether, gasoline, acetaldehyde, propylene oxide, carbon disulfide and other substances burning less than -30 ° C. (2) Ordinary ethane, ethylene oxide, acetone, benzene, methyl ethyl ketone and other substances with a flash point above -30 ° C and less than 0 ° C. (3) Methanol, ethanol, dimethoate, amyl acetate and other substances with a flash point below 0 °C below 30 °C. (4) Kerosene, light oil, turpentine, isoamyl alcohol, acid vinegar and other substances with a burning point below 30 °C above 65 °C. 4. Flammable gases: Hydrogen, acetylene, ethylene, methane, ethane, propane, butane and other gases that may burn at 1 atmosphere at a temperature of 15 °C. Second, the scope of application This high and low temperature test box is suitable for the performance reliability test of industrial products. The test box has a large temperature and humidity control range, and the performance indicators meet the requirements of national standards GB2423.1-93 and GB2423.2-93, and are applicable to GB2423.1~2 "Basic Environmental Test Specifications for Electrical and Electronic Products". "Test A: Low Temperature Test Method; Test B: High Temperature Test Method", the product is subjected to high and low temperature tests. Third, the installation site In order to facilitate the heat dissipation and maintenance of the cabinet, the installation of the equipment must meet the following conditions: Shanghai Maiyuan Environmental Experimental Equipment Factory Shanghai Maijie Experimental Equipment Co., Ltd. Tel: Compression Plate Instruments ,Posterior Cervical Kit,Back Cervical Kit,Posterior Cervical Instruments Jiangsu Health Medical Technology Development Co., Ltd. , https://www.medicalhos.com
1. The distance between adjacent walls or objects. 2. In order to stably display the function and performance of the test chamber, the place where the annual temperature is 15~25°C and the relative humidity is less than 85% should be selected. 3. The ambient temperature of the installation site should not be changed drastically. 4. It should be installed on a level ground (the level is determined on the ground when installing). 5, should be installed in places without direct sunlight. 6, should be installed in a well-ventilated place. 7. It should be installed away from combustibles, explosives and high temperature heat sources. 8, should be installed in places with less dust. 9. Install as close as possible to the power supply.
fax:
The preferred equipment supplier of famous enterprises - [Shanghai Maijie]
For more product information, please visit:
Shanghai Maijie Experimental Equipment Co., Ltd. - the linger of the same industry!