The working principle of the vacuum drying oven:
As a commonly used equipment in the laboratory, the vacuum drying oven can perform product drying, defoaming, constant temperature, anti-oxidation, etc.
Reduce the boiling point of water under negative pressure, so that the water can evaporate quickly at a relatively low temperature, so as to achieve the purpose of drying. It is especially suitable for the drying of some products that cannot withstand high temperatures and the drying of powdered products.
Technical parameters of vacuum drying oven:
Studio material: 304 stainless steel plate;
Mesh plate: 2-layer stainless steel mesh plate;
Temperature range: RT+10~250℃;
Temperature fluctuation: ≤±0.5℃;
Temperature uniformity: ≤±2.5﹪;
Power supply: AC220V 50Hz;
Power consumption: 1400W;
Studio size mm: 415*370*345
Vacuum degree: ≤133pa
Precautions for the use of vacuum drying oven:
1. The vacuum pump cannot work for a long time. Therefore, when the vacuum degree reaches the requirement of dry goods, the vacuum valve should be closed first, and then the power supply of the vacuum pump. This can extend the service life of the vacuum pump.
2. If the vacuum drying oven is not used for a long time, wipe the exposed electroplated parts and apply neutral grease to prevent corrosion, and put on a plastic film dust cover, and place it in a dry room to prevent electrical components from being damaged by moisture. Affect.
3. If the dry items are wet, it is better to add a filter between the vacuum drying box and the vacuum pump to prevent the wet gas from entering the vacuum pump and causing the vacuum pump to malfunction.
4. If the dry items are changed into light weight and small size (small particles) after drying, the vacuum port in the working chamber should be added with a barrier net to prevent the inhalation of dry matter from damaging the vacuum pump (or solenoid valve).
5. After the vacuum drying oven has been used for many times, if there is a phenomenon that cannot be vacuumed, the sealing strip should be replaced at this time to solve the problem. When the drying temperature of the vacuum box is higher than 200℃, if slow air leakage occurs, open the back cover of the box and use an Allen wrench to loosen the heater base, change the sealing ring or tighten the heater base to solve the problem.
6. If the rubber plug of the air release valve is difficult to rotate, it can be lubricated with a proper amount of grease inside.
7. Except for maintenance, the left side box cover cannot be removed to avoid damage to the electrical control system.
8. The vacuum drying oven should always be kept clean. Do not wipe the glass of the door with a reactive chemical solution, and should be wiped with a soft cotton cloth.
