The three test methods mentioned in the high and low temperature test chamber standard: anemometer, surface thermometer, thermometer. a. Anemometer: The anemometer is used to test the wind speed of the box body. The standard wind speed of our high and low temperature test box should be 3.7m / S (the test box is driven by the motor to generate a wind cycle to form the principle of air supply. Hot air, cold air, mist, etc. in the box will be sent to all corners of the box to form a series of indicators such as uniformity, fluctuation, humidity deviation, etc., to ensure the accuracy of the test results), for the anemometer, the standard requires induction Should be greater than or equal to 0.05m / S. b. Surface thermometer, also known as temperature sensor, transmits the temperature point detected in the box to the instrument, so that the operator can intuitively understand the deviation between the actual temperature value and the set value in the box, so as to monitor in real time The temperature in the box is a measurement system composed of platinum resistance or other similar sensors and meeting the following requirements: sensor time constant: 20s ~ 40s; extended uncertainty of temperature measurement system (k = 2): less than or equal to 1.0 ℃. c. Thermometer is a temperature measurement system composed of platinum resistance, thermocouple or other similar temperature sensors and meeting the following requirements: sensor time constant: 20s ~ 40s; extended uncertainty of temperature measurement system (k = 2): less than or Equal to 0.4 ° C. The high and low temperature test chamber is used for the reliability test of high and low temperature of industrial products. Clamshell Plastic Box,Clear Clamshell Pack,Plastic Clamshell Boxes With Hangers,Fruit Packaging Box Jiangmen JiuTai Plastic Product Co.Ltd , https://www.sequoiaent.com