1. Put the articles to be dried into the Laboratory Drying Oven, close well the door and turn the air door adjusting knob to “ ” position.

2. Move the power switch to “ON”. The power indicator light lights up and figures appear on the temperature control instrument.

3. Select the required set temperature, the numeric temperature displayed at the moment is the temperature in the cabinet and the heating indicator light lights up, showing that the instrument has been in the heating and temperature-rising state. After a period of time, when the displayed temperature is near to the set temperature, the heating indicator light is flickering for many times. Under usual conditions, after heating for 90 minutes, the temperature control will be the constant temperature state.

4. When the required working temperature is lower, adopt the two-stage set method. For example, if the required temperature is 80℃, first set 70℃ and after the overshoot temperature starts to drop back, then set 80℃, which can reduce and even eliminate the phenomenon of overshoot temperature, thus enable the inside cabinet to attain the temperature-constant state as early as possible.

5. Select the different drying times according to the different humidity of different articles, e.g., the articles to be dried are more humid, turn the air door adjusting knob to “ ” position so as to vent the humid air in the cabinet.

6. When the drying process being over, if not to immediately take the articles out, first turn the air door adjusting knob to close the air door, or let open the air door and move the power switch to “OFF”, then opening the cabinet door immediately to take out articles, but take care not to be scalded.

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