Several Measurement Problems of Constant Temperature and Humidity Test Chamber
Regarding the measurement method calculation of the environmental test equipment of the constant temperature and humidity test chamber, first of all, we should first understand the performance and use of the constant temperature and humidity test chamber. The constant temperature and humidity test chamber is the main equipment for temperature and humidity testing. The scientific operation test of the equipment is used to test the temperature and humidity of the test objects. Generally speaking, it is tested in a specific temperature and humidity environment. The use of constant temperature and humidity test chamber can effectively detect product quality and safety performance.
The following is a discussion and discussion on several measurement problems of the environmental test equipment of the constant temperature and humidity test chamber.
Measurement items, methods, calculations of constant temperature and humidity test chamber
1. Explanation of terms:
1) Fluctuation: the amount of change of the parameter of the center point of the working space with time under the stable state of the environmental test equipment.
2) Uniformity: the difference between the test points (temperature and humidity) at a certain moment in the working space of the environmental test equipment in a stable state.
3) Deviation: In the stable state, the measured maximum and minimum measured values ​​of the measurement points in the working space deviate from the nominal value.
2. Measurement characteristics: temperature and humidity deviation, temperature and humidity fluctuation, temperature and humidity uniformity
3. Measurement method:
1) Measurement is carried out under no-load conditions. If there is a load, the load should be stated in the certificate.
2) The measurement of turbidity and humidity points should generally select the upper limit, lower limit and center point of the equipment's use range, and the actual commonly used temperature and humidity points can also be selected according to user needs
3) Location of measuring point:
â— When the equipment volume is less than 2m3, there are 9 temperature points and 3 humidity points
â— Equipment volume is greater than 2m3, 15 temperature points, 4 temperature points
Through the above technical analysis, we can easily see why the performance of a constant temperature and humidity test chamber is unqualified, and the performance is stable and unstable. Just refer to the above technical parameters. At the same time, as a technical operator, mastering the above technical knowledge is not only conducive to the correct and scientific operation of the constant temperature and humidity test chamber, but also helpful to the scientific maintenance of the equipment.
After signing the purchase agreement with the customer, Qinzhuo Environmental Testing Technology will have the above parameter descriptions in the general technical agreement, so that the customer can check the quality of the constant temperature and humidity test chamber according to the above parameters.
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