1. Check whether there is nitrogen in the nitrogen bottle of the glove box. The nitrogen should be replaced in time. The output pressure of the nitrogen is set to 0.5mpa.

2. Check whether the vacuum pump of the glove box is turned on normally.

3. Check whether the loop in the glove box is open. (Open one of the purification column-I or purification column-II)

4. The upper limit pressure in the inspection glove box setting should be +1, and the lower limit pressure should be 0

5. Check whether the oxygen and dew point of the glove box are normal (the oxygen is below 0.1ppm, the dew point is above -40)

6. The vacuum pump of the glove box transition compartment should be normally open