The high and low temperature alternating heat and humidity test chamber is also called constant temperature and humidity tester, constant temperature and humidity test chamber, programmable wet heat alternating test chamber, thermostat or constant temperature and humidity chamber, and is used for testing the performance of materials in various environments. Test various materials for heat resistance, cold resistance, dry resistance and moisture resistance. Suitable for the quality of electronic, electrical, mobile, communications, instrumentation, vehicles, plastic products, metal, food, chemicals, building materials, medical, aerospace and other products.
In the high-low temperature alternating heat and humidity test chamber, the actual humidity will reach 100% or the actual humidity will be very different from the target humidity. The value is much lower. The former phenomenon may be caused by the drying of the gauze on the wet bulb sensor. It is necessary to check whether there is water shortage in the water tank of the wet bulb sensor. The water level in the water tank is automatically controlled by a water level controller. Check whether the water supply system of the water level controller is normal and the water level controller works normally.
Another possibility is that the wet ball gauze will be hardened due to the long use time or the purity of the water supply, so that the gauze can not absorb moisture and be dry. The above phenomenon can be eliminated by replacing or cleaning the gauze. The latter phenomenon is mainly because the humidification system does not work. Check the water supply system of the humidification system, whether there is a certain amount of water in the water supply system, whether the water level control of the humidification boiler water level is normal, and whether the water level in the humidification boiler is normal. If everything above is normal, then check the electrical control system, which should be repaired by professional maintenance personnel.
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