亚洲日韩乱码久久久久久,男人用嘴添女人下身免费视频,99久久精品国产免费,久久精品熟女

Products Introduction：
SG-850 is a conventional high-speed desktop centrifuge laboratory centrifuges, micro samples to meet the needs of rapid separation of synthetic production of a new generation of centrifuge R & D products，widely used in biology, chemistry, medicine, education and scientific research and production departments. Maximum speed of 16000r/min, applied micro fast separation of synthetic samples.

Features：
1.attractive appearance, small size, fully functional。
2.Stable performance、adjustable speed and automatically adjust the balance
3.Use low temperature, high efficiency, wide adaptability
4.The products are suitable for pharmaceutical products, blood banks, clinical trials, and biochemical laboratories for serum, plasma, urea qualitative analysis.

Specifications：
Maximum speed：16000r/min
Centrifugal force：17000g
Capacity：1.5ml*12、 0.5ml*12
Timing：0-60min
Noise：70db
Power：250w
Dimensions （mm） l * w * h:220*220*280

Handling Precautions
Work in a high speed centrifuge, used to safety and to ensure that the equipment to maintain high precision work, we must do the following：
（1）．Centrifuges used to be placed in a smooth, strong on the counter; centrifuge work done, the load balancing, the weight error as small as possible, otherwise it will cause severe vibration, and shaft damage the centrifuge turned。
（2）．Centrifuge starts, switch knob should be on the low speed position, start and then gradually adjust to the desired value. A work, shall knob again transferred to low-bit work, at high speed block ban on direct start.
（3）．Rotor in the strict inspection before each use if a foreign body and the dirt hole, in order to maintain balance. Turned around and must be kept dry and clean, do not impact abrasion. Such as accidentally dropped, turned to X-ray film should check that no internal injury can continue to use. Turned after each use with warm water （50 Degrees -60 Degrees） and neutral detergent immersion cleaning, and finally with distilled or deionized water rinse, soft cloth after drying with hair dryer, wax, dry place.
（4）．Pull all kinds of tube length, strength and stretch are different, should the need to use, the tube can be made of many different materials, such as polyethylene, cellulose, polycarbonates, polypropylene. Use care to ensure the sample, non-corrosive materials, solvent and gradient centrifuge tube and cap components. Expired, the aging, there are cracks or corrosion of the tube by minimizing or spin-down use. Control the use of plastic tube number, pay attention to standard matching. Centrifugal process may open the centrifuge lid, not by hand or foreign body collisions are turned and the rotation of the centrifuge tube.
（5）．In the centrifuge process, such as abnormal phenomena, such as the noise and vibration is not normal, should immediay stop checks, not to find reasons not to continue to operate .
（6）．Daily use of centrifuges in the process, every three months the level of response to host a degree of correction for each transfer using 500 million deal with a vacuum pump oil, working 500h should check drive motor carbon brush, preferably with a vacuum cleaner to friction toner remove, if necessary, to replace carbon brushes or commutator with fine sandpaper polish。Should be cleaned about every driver using the 1500h site with high-speed bearings and grease shaft and turned rust-proof joint of fat should be kept painted, do not be long-term anti-rust oil coating oil paper wrap. When not in use should be switched each month low 1 or 2 times, each time 0.5h, to ensure the normal operation of the site.
（7）. Be sure to place the centrifuge tube placed symmetrically, and to keep the weight fairly. Things in the open centrifuge to centrifuge lid.
（8）. Centrifugal liquid should not be too low boiling point，Should pay attention to internal and external pressure ratio.If it is toxic reagents, but also good ventilation treatment.