Magnetic stirrer is mainly used in chemical experiment, chemical industry, medicine, biology and other fields. The main role of magnetic stirrer is stirring and heating, stirring role in the reactants to make the mixture of uniform and prevent the reactants in the closed container when heated boiled. The role of heating is easy to understand, is to ensure that the chemical reaction of the reactants to occur the required temperature. The following will explain the principle of magnetic stirrer and several magnetic stirrer price introduction.
Magnetic Stirrer Principle
Using the characteristic of magnetic material repulsion, the magnetic stirrer is driven to rotate by changing the polarity of the two ends of the base, and the sample is rotated by the rotation of the magnetic stirrer, so as to make the sample evenly mixed, and the sample is heated by the bottom temperature control board, which is in line with the rotating of the magnetic stirrer to make the sample evenly heated and reach the specified temperature. The bottom temperature control board heats up the sample, and the sample is heated evenly with the rotation of the magnetic stirrer to reach the specified temperature; the heating power is adjusted to make the heating speed controllable, so that it can be applied to a wider range of sample treatment processes. The general magnetic stirrer has two roles of stirring and heating, the first role, so that the reactants are mixed evenly, so that the temperature is uniform; the second role, to speed up the reaction speed, or evaporation speed, shorten the time.
Magnetic stirrer precautions
1.? When you find the stirrer jumping or not stirring, please cut off the power to check, ? Whether the present voltage is between 220±10V, the speed is gradually adjusted from low speed to high speed, do not allow the high speed gear to start directly, so as not to stir the sub-synchronization, caused by jumping.
2. Constant temperature magnetic stirrer is generally capable of long-time heating work, but you need to make sure that the digital display regulator has been set up and meets the needs of the experimental process.
4. After a long time of use, if you find leakage phenomenon, please check whether the heating ceramic tube is broken, because the heating wire is 220V through, or check whether the collision caused by the line and the insulating tube off, do not understand the principle of electricity, please absolutely prohibit the dismantling of the repair, notify the factory to repair.
Magnetic Stirrer Price
Shanghai Yiheng IT-09C10 Magnetic Stirrer
Reference Price: 1690, with LCD display, menu operation interface, temperature, speed and countdown and other parameters are displayed on a screen, simple and easy to understand, easy to observe and operate. With microcomputer control technology, to ensure that the mixing viscosity is constantly changing under the circumstances of the speed to maintain a constant. The table top is made of aluminum alloy die-casting material, and the external spraying enamel material has both good heat conduction effect and corrosion resistance, and the smooth mixing table top is easy to clean without pollutants staying. Large output torque, suitable for mixing low viscosity large capacity or high viscosity small capacity solution. (Different volume for different models.) The upper part of the control panel is designed with a corrosion-resistant liquid-conducting tank, so that even if the liquid overflows during the mixing process, it will not cause any damage to the electronic devices inside the mixer.
Chering Bell Magnetic Stirrer GL-3250C
Reference price: 700, the heating plate is made of aluminum alloy die-casting, external spraying Teflon material, with unique thermal conductivity, good resistance to heat and cold, and corrosion resistance; the bottom of the heating plate double insulation function, can fully improve the thermal efficiency and can avoid the transmission to the body; unique digital circuit design can be accurately selected, The unique digital circuit design can accurately select and control the temperature of the heating plate or directly control the temperature of the solution in the container through the configured sensor.
Shanghai Bonte MS200 Digital Magnetic Stirrer
Reference price:800, MS200 Magnetic Stirrer adopts digital circuit and high performance integrated chip design, the timing range up to 999 minutes. The instrument adopts the key way to control the motor speed,? After turning on the stirring function,? The built-in motor will gradually increase the speed from slow to fast. Intelligent acceleration design prevents the stirring bar from stalling caused by the sudden rapid operation of the motor. The LCD display of the instrument has animated icons, which can clearly indicate the current work of the instrument. It can clearly indicate the current working condition of the instrument. You can know the stirring speed, working time and other information through these icons. You can know the stirring speed, working time and other information through these icons.
The use of the magnetic stirrer is also need to pay special attention to, the first time you use the magnetic stirrer should be tested to see if the accessories need to be used are complete; the second step, the reaction into the beaker, and put the beaker in the center of the magnetic stirrer; the third step, after the power supply is turned on, turn on the magnetic stirrer, adjust the knob of the speed control from slow to fast. If you need to heat, adjust the temperature knob. The above is what Bunny wants to introduce about the magnetic stirrer.
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