Today, let’s take a look at the function of the constant temperature and humidity test chamber. 1. Heating system: Compared with the refrigeration system, the heating system of the constant temperature and humidity test chamber is relatively simple. The heating system of the test...
1. The ambient temperature difference should not be too large. If the ambient temperature difference is too large, a large amount of water vapor will be generated during use. Long-term use will accelerate the corrosion of components, which may easily cause equipment damage. 2. it should not...
Constant temperature and humidity test chamber, also known as constant temperature and humidity test machine, programmable damp-heat alternating test chamber, constant temperature machine or constant temperature and humidity chamber, is used to test the performance of materials in various environments, and test the...
The tensile signal of the tensile testing machine can be calibrated by two methods: a standard measuring instrument or an electrical calibration. In essence, the measurement circuit is adjusted for calibration. The measurement accuracy of the standard tensile testing machine is generally up to 0.15%,...
The high and low temperature test chamber is a kind of experimental equipment that inspects the reliability test of high and low temperature or other performance indicators of industrial products under the condition of high and low temperature (alternating) cycles. It is produced for many raw...
1. There is no problem with the electrical system. Continue to check the refrigeration system. First, check whether the discharge and suction pressures of the low-temperature (R23) compressors of the two sets of refrigeration units are lower than the normal values, and whether the suction pressure is in the...
1. Insufficient refrigerant in the refrigeration system of the constant temperature and humidity test chamber. 2. There is too much cooling water in the water cooling system and too little amount of refrigerant. Therefore, the flow of cooling water and refrigerant must be...
What is the "cold" main knowledge of the constant temperature and humidity test chamber, in fact, constant temperature and humidity is the refrigeration system studied, we know its characteristics, structure and content, we can better use it. Below I will take you to understand it. Refrigeration...
What is the "cold" main knowledge of the constant temperature and humidity test chamber, in fact, constant temperature and humidity is the refrigeration system studied, we know its characteristics, structure and content, we can better use it. Below I will take you to understand it. Refrigeration...
1. The sample to be tested should be uniform. For example, the length of the width and thickness of the board is 50 mm longer than the fixed length. The nominal width of the sample should not exceed 5 mm and not exceed 25.4 mm. The ratio of width to thickness is less than 8. The narrow sample increases the strain...
1. After the test, if the tensile testing machine is not used for a long time, the computer should be turned off and the measurement and control card should be removed. 2. Regularly check whether the connection line of the measuring and control card and the tensile testing machine is in good contact....
1. Temperature system 1. Sample overheating protection. When the temperature of the sample area exceeds the protection temperature set by the controller, it will stop working and alarm at the same time. Over-temperature protection is divided into upper and lower levels of protection, and can be set according...