I. Q: What should I do if the temperature of the thermal shock test chamber rises very slowly?
Professional answer: Check the wind circulation system to see if the regulating baffle of the wind cycle is normal. On the contrary, check whether the motor of the wind cycle is running normally.
2. Q: What should I do if the temperature of the test chamber is too high?
Professional answer: Set the PID setting parameters.
3. Q: What should I do if the temperature rises directly?
Professional answer: If the controller fails, the control instrument must be replaced.
Q. What should I do if the low temperature does not reach the test index?
Professional answer: Observing the change of temperature is the temperature drop is very slow, or the temperature has a tendency to rise after the temperature reaches a certain value. The former should check whether the studio is dried before the low temperature test, so that the studio is kept dry. Then put the test sample into the working room and then test it. If the test sample in the working room is placed too much, the wind in the working room cannot be fully circulated. After eliminating the above reasons, it is necessary to consider whether it is a fault in the refrigeration system. This requires the professional staff of the factory to carry out maintenance. The latter phenomenon is caused by the poor use of the equipment. The ambient temperature at which the equipment is placed and the location where it is placed (the distance between the back of the cabinet and the wall) must meet the requirements (as specified in the operating instructions for the equipment).
V. Q: In the damp heat test, the actual humidity will reach 100% or the actual humidity will differ greatly from the target humidity. What is going on?
Professional answer: It may be caused by the drying of the gauze on the wet bulb sensor. Then check whether there is water shortage in the sink 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 supplies water. Normal, 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.
6. Q: How is the temperature shock and temperature cycle resolved?
The authoritative answer: Where is the difference between temperature shock and temperature cycle, it is still the same as just the title is not the same.
Seven: Q: How to choose the residence time of temperature shock test?
Authoritative answer: There is a so-called dwell time in the impact process. How to choose the dwell time of the product to be tested depends on the quantity of the product to be tested and still depends on the raw materials of the test product.
Eight: Q: Does the impact temperature need to be OVER or lower than the set value?
Authoritative answer: During the impact process, the impact temperature is correct because it is higher than the set value and still lower than the set value.
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