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Precautions for refrigerated vacuum freeze dryer
2026-04-20
The daily operation and maintenance management of refrigerated vacuum freeze dryer can be referenced for other models of refrigerated vacuum freeze dryer. Check the power supply: Confirm that the power supply voltage and frequency meet the equipment requirements, and that the power supply line is firmly and reliably connected. Check the cooling system: Ensure sufficient supply of cooling water (or coolant), unobstructed pipelines, and that the cooling water temperature meets the equipment requirements. Check the refrigerant: Observe the refrigerant pressure gauge to ensure it is within the normal range; If the refrigerant is insufficient, it should be replenished in a timely manner. Cleaning equipment: Keep the surface and surrounding environment of the equipment clean and free of debris accumulation. Precautions for Freeze Drying Machine 1: When preparing samples, the surface area should be maximized, and conventional equipment should not contain acidic or alkaline substances or volatile organic solvents; The two samples must be completely frozen into ice, and any residual liquid will cause gasification spray; 3. Note that the cold trap is at around minus zero temperature and can be used as a low-temperature refrigerator. It is necessary to wear insulated gloves to prevent frostbite during operation; Before starting the vacuum pump, check whether the outlet valve is tightened, whether the inflation valve is closed, whether the contact surface between the organic glass cover and the rubber ring is clean and free of dirt, and whether it is well sealed; In general, the ambient temperature should not exceed 28 degrees Celsius and continuous operation for more than 48 hours is not allowed;
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