High and low temperature test chamber operation method
Methods in the high and low temperature test box, has always been of concern to everyone, I don't know exactly how to operate it correctly, then the small make up to introduce the correct operating method of the high and low temperature test chamber of what it is.
High and low temperature test chamber is accurate KEPIN instrument configuration according to the test configuration (KP1001) temperature are simulated environment factors, environmental testing configuration generally can be divided into: climate environment configuration (including biological environmental testing configuration), environmental testing mechanical configuration, climate comprehensive environmental test configuration and other environmental test mechanical configuration, etc.
1 when do environmental testing, the required test samples performance, test conditions, test pace and experimental skills to learn, to use the test configuration skills to familiar with performance, the configuration of the layout to get to know each other, especially to familiar with the operation and performance of the controller.
2, choose the test configuration. For guaranteeing test is normal, should be based on the differences of test sample environment, choose relevant test configuration, test samples and test cases there is also a link between the effective volume of a reasonable proportion. Dealing with hot test sample test, the size should be not more than one of the test chamber volume is very. Can't handle heat test samples the size should be less than one 5 of the test chamber volume. Like, a ` color TV in to do the temperature storage test, choose a one cubic volume of test chamber can satiety, and in the electricity, it will not be able to satiety requirements, should change a larger test chamber, rugged thermostat for TV set when something will radiate heat.
3, accurate arrange test samples. The decoration of the test sample location, should leave the walls above 10 cm, for multiple samples should be just even in the same plane. Arrange samples should not jam the diffuser and return air, temperature and humidity should be to set aside certain distance. In order to guaranteeing the accuracy of the test temperature.
4, to deal with the test required to participate in the media environment of test, should be accurately according to the test requirement. Such as high and low temperature (hot) water test chamber is a must request, test chamber water resistivity is not less than 500 euro. M, as ordinary tap water resistivity 10-100 Europe. M, distilled water resistivity, 100-10000. M, deionized water resistivity. 10000-100000 meters, so hot and humid test to use distilled water or deionized water, with water and with a strange, because water and atmosphere after the war, vulnerable to carbon dioxide and dust pollution, the water is to the nature of the substance, in the long run, the resistivity to land. Now the cities on deploying a pure water than economic force, and convenient, rugged box temperature resistivity of distilled water. For the use of hot and humid test chamber. Humid heat test box with wet gauze ball (wet bulb paper) is a must request, not any gauze can substitute, because the relative humidity reading is from the root is the difference between the temperature and humidity, strict said also related to the local atmospheric pressure, wind speed at the time. Wet bulb temperature of water evaporation, appearance of breathe with gauze value related to the environment. These are directly with the gauze quality have close connection, in order to is designated on the scene, wet gauze ball must be woven linen, dedicated "wet gauze ball". Otherwise difficult to guaranteeing wet bulb accuracy value, also is the humidity accurately. Other wet gauze ball also has a clearly defined, the decoration of the gauze length: 100 mm, precision coil sensor probe, the probe from the humidity 25-30 mm glass, gauze dipped in water cup, rugged thermostat so that talent can configuration control accuracy and the accuracy of humidity.
This operation method is of the high and low temperature test chamber of the above content, environmental testing configuration for acceptance test of the product provides the necessary information and data. I hope these methods can help to you.
