Five points of attention for freeze dryer shutdown

1 Record the temperature and pressure values ​​before the shutdown;

2Press the inflation valve of the freeze dryer control panel and immediately turn off the vacuum pump;

3 When the pressure is displayed at atmospheric pressure, open the plexiglass cover and take out the sample;

4 Turn off the refrigerator, press and hold the total switch key for more than three seconds, and turn off the main power switch after the Zui;

After the ice in the 5th cold trap is completely turned into water, open the water outlet valve on the left side of the cabinet to drain the water, and clean the inner wall of the cold trap with a dry cloth, and cover the large filter paper to prevent dust.

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