Rotary evaporator operation process 1: Vacuum After turning on the vacuum pump, it was found that the vacuum could not be hit. Check whether each bottle mouth is well sealed, whether the vacuum pump itself leaks, whether the sealing ring at the shaft is intact, and a vacuum switch connected in series with the external vacuum tube can improve the recovery rate and evaporation speed. 2: feeding Using the system vacuum negative pressure, the liquid material can be sucked into the rotating bottle through the hose at the feeding port, and the liquid material should not exceed half of the rotating bottle. The instrument can be fed continuously, please pay attention when feeding 1. Turn off the vacuum pump 2 / stop heating 3. After the evaporation stops, slowly open the tube cock to prevent backflow. 3: heating This instrument is equipped with a specially designed water bath. It must be filled with water and then powered on. The temperature control scale is 0-99 ° C for reference. Due to the existence of thermal inertia, the actual water temperature is about 2 degrees higher than the set temperature. The set value can be corrected during use, such as: you need the water temperature 1 / 3-1 / 2. Remove the power plug with a pull out. 4: Rotate Turn on the switch of the electric control box and adjust the knob to the best evaporation speed. Pay attention to avoid the vibration of the water bath. 5: Connect Turn on the cooling water. 6: Recovery of solvent Turn off the vacuum pump, open the feed switch to deflate, and remove the solvent in the collection bottle. Precautions during installation of rotary evaporator 1: When installing the equipment, each grinding port, sealing surface sealing ring and joint need to be coated with vacuum grease before installation. 2: Water must be added before the heating tank is energized. Drying without water is not allowed. 3: RE-201D must screw (19) into the safety hole to prevent damage to the flask. 4: If the vacuum cannot be pumped up, please check: ①Whether each joint and interface are sealed ② Is the sealing ring and sealing surface effective? ③Whether the vacuum grease is coated between the main shaft and the sealing ring ④Whether the vacuum pump and its leather tube leak ⑤ Is there any crack, chipping or damage on the glass parts? For more information about the rotary evaporator, please log in to Guige Industrial Booth: http: //
This square tray is very popular, with good
quality and high sales volume. The large capacity design makes it easy
to use, and the tray durable and environmentally friendly.
Description of the square tray:
Name:square tray
Material: galvanized iron, tinplate
Fields of applications: bar, party, hotel, home, weeding, outdoor
activity
1.Are you factory ?
Yes. A professional Ice Bucket and Tin Tray manufacture.
2.Are your products the lowest prices ?
EXW, the same quality, we are much cheaper than other suppliers.
3.Can we customized product ?
Yes, Tailor-made tooling for your own design is welcome.
4.What is the transportation ?
If small quantity, we suggest that sent by Courier, If large amount, by
shipping.
5.If goods are damaged in transit, how to do ?
Products are inspected strictly before shipping, if damage, they can be
replaced .
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