As one of the commonly used test equipment in biological laboratories, the precision blast drying oven is simple and widely used, So the selection is very important. The precision blast drying oven is a kind of small industrial oven, and it is also the simplest baking constant temperature. The temperature performance of the precision blast drying oven includes the following important parameters:
1/Temperature control range.
Generally, the temperature control range of the precision blast drying oven is RT+10~250 degrees. Note that RT stands for room temperature, strictly speaking, it means 25 degrees, which means room temperature, that is, the temperature control of the blast drying oven The range is 35~250 degrees. Of course, if the ambient temperature is higher, the temperature control range should be increased accordingly. For example, if the ambient temperature is 30 degrees, the minimum temperature allowed to be controlled is 40 degrees, and a low temperature test is required.
2/Temperature uniformity.
The temperature uniformity of the blast drying oven complies with the “GBT 30435-2013″ electric heating drying oven and electric heating blast drying oven specifications, the minimum requirement is 2.5%, this specification has a detailed algorithm, for example, for example, the oven temperature is 200 degrees, then the minimum temperature of the test point should not be lower than 195, and the maximum temperature should not be higher than 205 degrees. The temperature uniformity of the oven is generally controlled at 1.0~2.5%, and the uniformity of the blast drying oven is generally about 2.0%, higher than 1.5%. If the uniformity of less than 2.0% is required, it is recommended to use a precision hot air circulation oven.
3/Temperature fluctuation (stability).
This refers to the fluctuation range of the test temperature point after the temperature is kept constant. The specification requires plus or minus 1 degree. If it is good, it can be 0.5 degree. This can be done by observing the instrument. Generally, there is not much difference.
Post time: Mar-17-2021
