1. Choose the appropriate shaker: If the rated working voltage of the motor under test of the Quick Freezing Equipment is 380 volts, then we can choose a 500V shaker.

2. Shake the watch flat, make a short circuit test, two test leads are shorted, and shake the handle pointer close to 0 is good.

3. Separate the two test leads, shake the handle, and the pointer is close to infinity.

4. It…

The Lyophilization Equipment of products are carried out in certain equipment, which is called vacuum freeze-drying machine, or freeze-drying equipment for short.

Freeze-drying equipment is divided into four main parts: refrigeration system, vacuum system, heating system and control system. According to the structure, it consists of freeze-drying box or drying box, condenser or water vapor condenser,…