Operation method of vacuum drying oven:

1Place the items that need to be dried into a vacuum drying oven, close the oven door, close the vent valve, open the vacuum valve, connect the power supply of the vacuum pump to start pumping, and make the vacuum degree inside the oven reach-0.1M PaClose the vacuum valve and then turn off the power supply of the vacuum pump.

2Turn the power switch of the vacuum drying oven to the "on" position, select the desired set temperature, and the temperature inside the oven will start to rise,When the temperature inside the box approaches the set temperature, the heating indicator light flashes on and off repeatedly, usually120minIt can enter a constant temperature state within.

3When the required working temperature is low, a secondary setting method can be used, such as the required temperature60口，**Secondary adjustable50Mouth, wait until the temperature starts to drop and then**Secondary setting60CThis can reduce or even eliminate*Temperature overshoot phenomenon, enter a constant temperature state as soon as possible.

4According to the humidity level of different items, choose different drying times. If the drying time is long and the vacuum degree decreases, it is necessary to evacuate again to restore the vacuum degree. The vacuum pump power should be turned on first, and then the vacuum valve should be turned on.

5After drying, the power supply of the drying oven should be turned off first, the vent valve should be opened, the vacuum state inside the oven should be released, and then the oven door should be opened to remove the items.(After releasing the vacuum,If the sealing ring is tightly attached to the glass door and deformed, it is difficult to immediately open the box door. After a period of time, wait for the sealing ring to return to its original shape,It is convenient to open the box door.)