The verification method of the constant temperature and humidity test box compares the corresponding standards according to the value of the measured space of the test box.
1. Explanation of terms of constant temperature and humidity test box:
Fluctuation: the amount of change of the parameter of the center point of the working space with time when the environmental test equipment is in a stable state.
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.
Deviation: In the stable state, the measured maximum and minimum values ​​of the measurement points of the working space deviate from the nominal value.
Second, the measurement characteristics: temperature and humidity deviation, temperature and humidity fluctuations, temperature and humidity uniformity
3. Measurement method of constant temperature and humidity test box:
1. The 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. The location of the measuring point:
When the equipment volume is less than 2m3, there are 9 temperature points and 3 humidity points
Equipment volume is greater than 2m3, 15 temperature points, 4 temperature points
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