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1. Height adjustment: manually lift, turn the hand wheel above the column, turn to rise, reverse to decline. Electric lift, hand touch up button to rise the main unit, hand touch down button to drop the host.
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 connector and the vacuum pump is connected. Tube for vacuuming.
3. Before turning on the power, turn the speed control knob to Zui small, press the power switch indicator light, then slowly turn right to the required speed. Generally, the large evaporation bottle is used, the low speed, the viscosity is high. 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%.
Precautions:
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. If the vacuum cannot be pumped up, check (1) each joint, whether the interface is sealed (2) sealing ring, whether the sealing surface is effective (3) whether the vacuum grease between the main shaft and the sealing ring is coated (4) vacuum pump and its skin tube Whether it is leaking (5) whether the glass piece has cracks, chipping or damage
Rotary evaporator use and precautions
Instructions: