Open the packing box, first check whether the joints on the vacuum glove box are loose during transportation. If there is any looseness, please tighten the corresponding screws, and then you can try to vacuum.
1. The method of vacuuming and inflating:
1. This product is divided into two parts: the main box and the transition room. The main box body cannot be evacuated separately, and the transition chamber can be evacuated separately.
2. First open the door inside the transition room, and then close all the glove interface glands, valves and doors outside the transition room.
3. Open the three-way valve between the glove ports (rotate counterclockwise), connect the space between the glove interface gland and the glove to the box, so that the inside and outside of the glove (box and interface) are simultaneously evacuated and maintained The air pressure is balanced on both sides.
4. Connect the vacuum pump to a valve in the transition chamber, turn on the vacuum pump, and slowly open the valve to pump air to the system (if the valve is opened too fast, it may cause the gloves to expand).
5. When the pointer of the vacuum gauge drops and stabilizes at -0.1MPa, the vacuum is completed. At this time, the valve should be closed first and then the vacuum pump.
6. Then fill the box with inert gas through another valve. The vertical pressure is slightly higher than the atmospheric pressure (barometer index is 0MPa), so that the pressure inside and outside the box is basically balanced, and the inside is slightly higher than the outside. Ensure that the atmosphere does not penetrate into the inside of the box (if you want to make the gas in the box more pure, it is best to repeat the above extraction and inflation process several times). Turn off the three-way valve connected to the glove interface, open the gland on the glove interface, and you can operate.
Second, the method of putting objects in and out of the main box:
1. How to put the object into the main box: After you have completed the operation of “(1) Vacuum and inflate” above, if you need to put the object into the main box, please close the inner door of the transition room and open it. The outer door of the transition chamber, put the objects in, then close the outer door, and use the two valves on the transition chamber to pump and inflate. Make sure that the pressure in the main box and the transition chamber is basically balanced with the atmospheric pressure, and then the door inside can be opened and the objects can be taken into the main box.
2. The method of taking out the objects in the main box: Put the objects in the transition room first, and close the transition room door tightly. If the transition indoor air pressure is basically balanced with the atmospheric pressure, the transition outdoor door can be opened to take out the object.
