Freeze dry machine

<p>Detailed operation sequence of the <a href="*/Freeze-Dryer/"><strong>freeze dry machine</strong></a><br />
1. Inspection before operation<br />
1 Check if the circulating water pressure and compressed air pressure meet the requirements.<br />
2 Check the oil level of the silicone oil, and the oil level and color of the vacuum pump are normal.<br />
3 Check if the compressor oil level, Freon liquid level and moisture content display color are within the normal range.<br />
4 Check if the computer program is normal.<br />
5 Check that the values ??of the pressure gauge and thermometer are within the normal range.<br />
6 Check that all valves are closed.<br />
2. Loading<br />
1 Control the position operator to determine the program used on the control screen.<br />
2 Start the procedure of the lyophilizer charging stage.<br />
3 Observe the freeze-drying curve and the operation diagram of the equipment, and refer to the reference.<br />
4 When the temperature on the graph drops to 0 &deg;C, notify the sterile room.<br />
3. Start<br />
After the clean room is closed, the operator of the control position will start the freeze-drying procedure immediately after receiving the notice.<br />
4. Run<br />
1 Note that the freeze-drying curve is consistent with the set curve.<br />
2 Observe whether the equipment control system, vacuum system, heating system and refrigeration system are normal.<br />
3 Observe whether the various components and each door reading action are correct during the operation in each stage.<br />
4 The meter should be accurate and the equipment should operate without abnormal noise.<br />
5 Observe that each oil level and liquid level should meet the requirements, and the moisture content of the refrigerant should be within the specified range.<br />
5. Shutdown<br />
When the drying pressure of the second stage reaches the set requirement, the operation stops. At this time, the injection compressor needs to wait for about 5 minutes to run the protection before stopping.<br />
6. Defrost<br />
1 Determine the parameters of the chemical box program. Start the chemical box program after checking the error.<br />
2 Observe whether the valve switches are correct during the phlegm process. Whether the water temperature and water quantity meet the requirements.<br />
3 The pump should be running normally. There is no water leakage at each connection point.<br />
7. Unloading<br />
1 Start the cooling program and carry out the product array temperature. When the temperature drops to 15 &deg;C, stop.<br />
2 notify the sterile room to empty the discharge.</p>

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