constant temperature and humidityTest chamberAlso known as constant temperature and humidity testing machine, constant temperature and humidity test box, programmable humidity and humidity alternating test box, constant temperature machine or constant temperature and humidity box, equipment used to test the performance of materials in various environments and test the heat resistance, cold resistance, dry resistance and humidity resistance of various materials. Suitable for electronics, electrical appliances, mobile phones, communications, instruments, vehicles, plastic products, metals, food, chemicals, building materials, medical, aerospace and other products for quality testing.

FromConstant temperature and humidity test chamberThe principle of refrigeration shows that the refrigerant flows in the system. When the state changes, along with heat release and heat absorption, the temperature of each refrigeration component and pipeline will change accordingly. We can judge whether the constant temperature test chamber is normal. work.

1When the constant temperature and humidity test chamber is powered on, the compressor starts to start operation, and the hand touches the appearance of the compressor with trembling feeling, accompanied by uniform operation of the compressor motor. After half an hour of normal operation, the whole refrigeration system enters the voltage stabilizing operation.

2Ambient temperature32For example, the temperature of the compressor shell can reach90About degrees, touch the appearance of the compressor with your hand, and feel hot at the entrance of the condenser.(Distance to compressor discharge150mmThe temperature can reach60About degrees, hands are hot here. If the temperature is too high, the compressor may be faulty. The condensing pressure is too high, and there are non-condensable gases such as air or excessive refrigerant in the system. If the temperature of these two places is too low, it may be that the compressor valve plate is damaged, the condensing pressure is too low, the refrigeration penalty is too small or the class is taken, and the condenser outlet end is in front of the dead coal filter.150mmDivision)The temperature is35About degrees, touch here with your hand and feel slightly higher than the room temperature. Along the direction of the condenser, touch each section of the pipeline with your hand and feel that the temperature decreases.

3Open the door of the constant temperature and humidity test chamber, but the hair device should have cold air overflow, and sometimes the gold recruit has a thin and uniform frost layer. At the moment, touch the evaporator with a little water with your finger and go to the ship at a faster speed. Your finger feels stuck. Its flower is close to the evaporator and you can hear the inside of the Yanfa device.“Hiss, hiss”|The inlet pump of the air flow bank or similar to the sound of running water can judge the normal operation of the refrigeration system of the constant temperature wet test box.