Novice must see - constant temperature and humidity test chamber FAQ
Users who use the constant temperature and humidity test chamber for the first time may encounter this situation. During the test, the humidity suddenly shows 100%, but I don't know what caused it. Today, the author will answer this question in detail.
Step 1: Check if the wet ball gauze is hung on the humidity sensor. The sensor near the sink is a humidity sensor, and the gauze should be hung on the humidity sensor and wrap around the sensor's temperature sensing section. A few customers often hang the gauze in the wrong position and hang it on the temperature sensor, causing the machine to malfunction. Therefore, please carefully identify that the upper one is the temperature probe and the lower one is the humidity probe.
Step 2: If the hanging method is still 100% moisture, please check if the wet ball gauze has yellowing, or if it is used for too long, too much mineral is accumulated on the gauze, which will cause the wet gauze to absorb water and not absorb. Water, so that the detected humidity is not accurate, resulting in high humidity artifacts; if you please replace the wet ball gauze, if not, check the water in the wet ball sink or the water level is low, the gauze can not absorb water, focus on inspection The following parts:
a. Observe whether there is water in the water level box on the side of the water tank. If not, it may damage the floating ball.
b. The electromagnetic pump is damaged. Use the multimeter's voltage file to measure its resistance. If it is open, it will be damaged.
c, the gap hydration timer is damaged, can not properly hydrate
The third step: There is still a problem with the controller setting. There are a few customers who have a misunderstanding of the constant temperature and humidity test chamber. They often set the humidity at low temperature, and the temperature is 120 degrees Celsius. The humidity is also set. This situation will also cause control. Misalignment and instability. The low temperature machine can't control the humidity, it is easy to freeze; the high temperature evaporates too fast, and the machine is very difficult to set the humidity. Therefore, please customers to read the instructions carefully, standardize the operation of the machine and extend the service life of the equipment.
The above content was contributed by Beijing Yashilin Technical Service Department.
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