The flask is removed and the solvent is transferred. When the system is in communication with the pressure reducing pump, the system should be under reduced pressure. When using, depressurize first, then start the motor to rotate the distillation flask. At the end, stop the machine and then pass the atmosphere to prevent the distillation flask from falling off during rotation. As a heat source for distillation, it is often equipped with a corresponding constant temperature water tank rotary evaporator:
1. Height adjustment: manually lift, turn the hand wheel above the machine column, turn to rise, reverse to decrease.
Electric lift, the hand touches the rise button and the main unit rises, and the hand touches the down button to lower the main unit.
2. There are two external joints on the condenser for connecting cooling water. One end is connected to the water and the other end is connected to the water. Generally, the tap water is connected. The lower the temperature of the condensed water, the better the effect. The upper port is equipped with a vacuum joint and the vacuum pump is connected. The tube is used for vacuuming.
3. Turn the speed control knob to the minimum before starting the machine, press the power switch indicator light, then slowly turn right to the required speed. Generally, the large evaporation bottle is used in medium, low speed, high viscosity solution with lower speed. The flask is a standard interface No. 24, and is supplied with 500 ml and 1000 ml two flasks. The amount of the solution is generally not more than 50%.
Rotary evaporator notes:
1. The glass parts should be handled gently and gently, and should be washed, dried or dried before loading.
2. Each grinding port, sealing surface sealing ring and joints need to be coated with a layer of vacuum grease before installation.
3. The heating tank must be filled with water before it is energized. It is not allowed to dry without water.
4.RE-52B must be screwed into the fuse hole (19) to avoid damage to the flask.
5. If the vacuum cannot be pumped up, check it.
(1) Each joint, whether the interface is sealed
(2) Sealing ring, whether the sealing surface is effective
(3) Is the vacuum grease between the main shaft and the seal ring coated?
(4) Whether the vacuum pump and its hose are leaking
(5) Whether the glass piece has cracks, chipping or damage
1. Height adjustment: manually lift, turn the hand wheel above the machine column, turn to rise, reverse to decrease.
Electric lift, the hand touches the rise button and the main unit rises, and the hand touches the down button to lower the main unit.
2. There are two external joints on the condenser for connecting cooling water. One end is connected to the water and the other end is connected to the water. Generally, the tap water is connected. The lower the temperature of the condensed water, the better the effect. The upper port is equipped with a vacuum joint and the vacuum pump is connected. The tube is used for vacuuming.
3. Turn the speed control knob to the minimum before starting the machine, press the power switch indicator light, then slowly turn right to the required speed. Generally, the large evaporation bottle is used in medium, low speed, high viscosity solution with lower speed. The flask is a standard interface No. 24, and is supplied with 500 ml and 1000 ml two flasks. The amount of the solution is generally not more than 50%.
Rotary evaporator notes:
1. The glass parts should be handled gently and gently, and should be washed, dried or dried before loading.
2. Each grinding port, sealing surface sealing ring and joints need to be coated with a layer of vacuum grease before installation.
3. The heating tank must be filled with water before it is energized. It is not allowed to dry without water.
4.RE-52B must be screwed into the fuse hole (19) to avoid damage to the flask.
5. If the vacuum cannot be pumped up, check it.
(1) Each joint, whether the interface is sealed
(2) Sealing ring, whether the sealing surface is effective
(3) Is the vacuum grease between the main shaft and the seal ring coated?
(4) Whether the vacuum pump and its hose are leaking
(5) Whether the glass piece has cracks, chipping or damage
Pet Feeder,Automatic Cat Feeder,Raised Dog Bowls,Automatic Dog Feeder
Green Source(Guangzhou) Co. Ltd. , https://www.stargalaxycn.com