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Temperature requirements of the Electric heating drying oven

According to the national standard GB/T30435-2013 for electric thermostatic ovens, several requirements for temperature are as follows:
 
a) Temperature fluctuation: the maximum working temperature is not greater than 300℃ of electric heating oven limit value in ±1.5℃, more than 300℃ is ±3℃. The maximum working temperature is not greater than 300℃ of the electric blast dryer limit value in ±1℃, above 300℃ is ±2℃.
 
b) Temperature uniformity: the limit value of uniformity of electric heating drying oven is ±3.5% of the highest working temperature, and the limit value of uniformity of electric heating blast drying oven is ±2.5% of the highest working temperature.
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c) Temperature display error: for the drying oven whose maximum working temperature is not greater than 200℃, the limit value of temperature display error is ±3℃, and for the drying oven whose maximum working temperature is greater than 200℃, the limit value of temperature display error is ±1.5% of the maximum working temperature.
 
d) Temperature stability: for the drying oven whose maximum working temperature is not greater than 200℃, the temperature stability within 24h should not be greater than 2℃, for the drying oven whose maximum working temperature is greater than 200℃, the temperature stability within 24h should not be greater than 1% of the maximum working temperature.
 
e) Heating up time: the temperature of the working space should not be greater than 120min from 35℃ to the highest working temperature.
 

In the previous:Clean bench principle and installation. The next article:About the use environment requirement of Electric heating drying oven
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