The high and low temperature test chamber is mainly for the adaptability test of electrical, electronic products, and other components and other materials when stored, transported, and used in high temperature and low temperature environments. The high and low temperature test chamber is mainly used to carry out environmental simulation tests on the physical and other relevant characteristics of the product under low temperature, high temperature and conditions according to national standards or user-defined requirements. After the test, the performance of the product is judged by inspection , Whether it can still meet the predetermined requirements for product design, improvement, identification and factory inspection.
Due to the large volume of the high and low temperature test chamber, it is inconvenient to move or move and the circuit is complicated. When a fault occurs, it is often difficult for the user to start. In order to allow the user to quickly determine the fault and solve it by himself, here are some common maintenance high and low temperature test chamber Faults and treatment methods. When the temperature and humidity controller displays abnormal temperature, please check the over-temperature protector of the control panel, whether the high and low temperature test box is set at 150 ℃, please check whether the circulating motor in the equipment room is damaged or not, please check whether the temperature part The solid-state relay burned out and shorted. If the heater is not burnt out, please use the AC voltage range of the three-meter meter, the voltage range is turned to the 600 volt position, place the red and black rods on both sides of the AC of the solid state relay marked with the wire number T, and place the temperature part The temperature setting value of the part is set to 0 ° C. At this time, the indicator light of the solid state relay of the temperature part will not light up. If the measured voltage value does not change, maintaining it below 10V means that the solid state relay burns out and shows a short circuit state.
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