China Education Equipment Purchasing Network News: The application of collector magnetic stirrers in schools is indispensable. It has four advantages of good performance, no noise, no vibration, and fast heating. It is a major school, environmental protection, and sanitation. , Epidemic prevention, petroleum, chemical, medical and other unit laboratory personnel ideal essential tools.
How to use collector magnetic stirrer:
1. The power supply and the cup are ready, open the lid of the stainless steel container, place the cup in the middle of the stainless steel container, add thermal oil or silicone oil to the stainless steel container to the appropriate height, and put the stir bar into the solution in the cup. Turn on the power switch, the indicator light is on, rotate the speed potentiometer in the direction of the municipal government, and the simple speed is from slow to fast. Adjust to the required speed.
2. When heating, connect the temperature sensor probe, clamp the probe on the bracket, and move the bracket so that the temperature sensor probe is inserted into the solution for not less than 5 cm, but it cannot affect the stirring.
3. Turn on the power switch, after about 1 minute, the red digital display on the upper row of the meter is 400, the lower row is 0.0, and after 30 seconds of rest, the upper row display value is the current water temperature, press the / SET button, the upper row displays SP, press â–² or â–¼ key to make the lower row display the desired set temperature, then press the / SET button, the upper row displays ST, still press the / SET button to return to the actual temperature displayed in the upper row, at this time, wait After a few seconds, the smart watch starts to work in memory.
If you want to change the parameters of the smart meter, such as resetting a higher temperature (or the original setting error is too large) if you want to change the parameters of the smart meter, such as resetting a higher temperature (or the originally set temperature (The error is too large), you need to press the / SET button, the upper row displays SP, press the â–² or â–¼ button to make the lower row display the desired temperature, then press the / SET button, the upper row displays ST, still press the / SET button, up The row shows the actual temperature. At this time, after holding down the / AT key for 20 seconds, the RUN light flashes, and the instrument starts auto-tuning, waiting for automatic back and forth (refers to stop heating when the temperature is automatically raised to the set temperature, and start heating when it returns below the set temperature) twice After the self-adjustment, the RUN light turns off, and the instrument draws a set of parameters that will never change and can overcome the overtemperature. Need to press the / SET button, the upper row is displayed as SP, press the â–² or â–¼ button to make the lower row displayed as the temperature to be set.
4. If the stirrer jumps during work, please turn off the power and turn it on again, the speed will change from slow to fast, and the adjustment will make it return to normal
Notes on collector magnetic stirrer
1. To ensure your personal safety, please use a three-phase safety socket, which must be properly grounded during use.
2. The heating time should generally not be too long, intermittent use can extend the life. Medium speed operation can work continuously for 8 hours, high speed operation can work continuously for 4 hours.
3. Please do not turn on the temperature control switch when there is no thermal oil in the stainless steel container and when the temperature sensor is not connected, to avoid damage to the electric heating tube and thermostat.
4. Please read the manual carefully before using this instrument to avoid unnecessary trouble.
5. Don't use it for a long time, please wipe it clean and put it in a dry and ventilated place.
The magnetic stirrer uses the principle of magnetic field and vortex to place the container of liquid to be stirred into the stirrer on the base of the magnetic stirrer. When the magnetic stirrer is energized, a rotating magnetic field is generated near the base to drive the stirrer into a circle Circulation movement, and then form a vortex in the container liquid, so as to achieve the purpose of stirring the liquid. At present, there are two main types of stirrers used in the laboratory: electric stirrers and magnetic stirrers. Among them, magnetic stirrers are suitable for liquids or solid-liquid mixtures with low viscosity. Compared with electric stirrers, magnetic stirrers have the following advantages:
1. Adopt high-quality DC motor with low noise and stable speed regulation;
2. The stirrer made of high quality magnetic steel coated PTFE is heat-resistant, wear-resistant and corrosion-resistant;
3. It can be mixed in a closed container, which is ideal and convenient to use;
4. Auxiliary heating device can be integrated in the system, which greatly facilitates the application that requires simultaneous stirring and heating.
The following are several different models of collector magnetic stirrers:
â‘ DF-101B (pressure and temperature control)
DF-101 series collector type constant temperature heating magnetic stirrer is a new type of magnetic stirrer developed by our factory. The product has been widely used in the laboratories of colleges and universities across the country with good results and well received by users.
Main features: 1. Using the collector heating method, the heated container is completely under intense heat radiation, and the heating speed is three times that of other planar heating magnetic stirrers. The temperature is uniform and the efficiency is high, which is more suitable for the heating reaction of the spherical flask.
Second, the main parts of the machine are excellent in material selection. The motor uses DC high-power motor, which has large stirring torque and low noise. The special stainless steel heating tube is aged at 8000C for 24 hours. Insulation resistance> 1000MΩ, safe and reliable when dry burning. The magnetic steel uses the "NdFeB" permanent magnet with the strongest magnetic force as the rotor to ensure sufficient suction and torque.
3. The structure is reasonable. The collector is made of high-quality stainless steel stamping. It is combined with a special heating tube and a high-temperature seal. It can be added with water (water bath), oil (oil bath), and dry burning. It is also the main advantage of this machine. The heating part It is separated from the electrical box by a heat dissipation plate. Under high temperature heating and stirring, it does not affect the electrical performance of the whole machine.
According to the requirements of users, large and small capacity collector stirrers can be customized.
The heating part of DF-101B (voltage and temperature control) uses regulating voltage to control the heating power. The precise constant temperature needs to be controlled by an external "electrical node thermometer". This machine has an "electrical node thermometer" jack.
The heating fraction of DF-101B model (voltage adjusting and temperature controlling) adopts adjustable voltage to control the heating power, for precision constant temperature, an "electric contact thermometer" needs to be connected, the pump has socket for "electric contact thermometer" .
â‘¡DF-101S (Digital display automatic constant temperature)
DF-101S (Intelligent Automatic Constant Temperature)
On the basis of DF-101B, DF-101S adds two models of high-precision time proportional digital temperature controller and intelligent digital display temperature. It can be set freely and automatically thermostated. It is more convenient and intuitive to use, and has high temperature control accuracy. Accurate and reliable.
DF-101S is made on the basis of DF-101B by adding the high precision time proportional digital temperature control instrument, which can be adjusted freely and with automatic constant temperature as well as used more easily an directly, temperature control is more precise accurate an reliable.
â‘¢CL-200 flat plate heating
â‘£DF-101C (pressure and temperature control)
⑤DF-101D (Digital display automatic constant temperature)
â‘¥DF-101T high power and large capacity magnetic stirrer
The CL-200 machine mainly uses high-power heating aluminum pans with a large heating area. It is suitable for heating and stirring large-capacity flat-bottom beakers. It can also be placed on various metal containers such as (pots and cylinders) for water bath and oil bath. flexible.
CL-200 model mainly adopts high power heat aluminum tray which can conduct heating on a large scale, fit for the heating and mixing of large capacity flat bottom beaker, also various metal containers such as (pan) can be put on it to conduct water -bath and oil-bath and mixing experiment, easy and flexible.
DF-101C (small heat collector) is a small heat collector stirrer. It has the same functions as (101B, 101S). There are two types of pressure regulating and temperature control type and digital display automatic constant temperature type. It takes up little work space and is suitable for 500ml For stirring. Can be customized according to user requirements 60-100mm deep pot.
DF-101C (small heat collection type) is a small heat collection mixer, which has the same function as (101B, 101S), it has two models, one is voltage-adjustable temperature control type and the other is figure automatic constant temperature type , occupying little working space, suitable for mixing of less than 500ml.
DF-101T high-power magnetic stirrer is a large-capacity and high-power stirrer newly developed by our factory. It is suitable for special-purpose stirring and can also be used as a high-precision constant temperature source. Container size can be customized according to user requirements.
DF-101T high power magnetic mixer is the latest development of our factory, fit for mixing of special purpose, and also can be used as high precision constant temperature source. The size of the container can be custom- made according to the requirement of the customer
Note: For oil bath and dry burning test, someone needs to be on duty.
Serial number
Specification model
feature
Stirring capacity
Stirring speed
Heating temperature
Temperature control method
Operating Voltage
Overall size
1
DF-101B
Pressure regulation
Max 2000ml
Stepless speed regulation 0-2600Room temperature-400 ℃
Pressure and temperature control
220V / 50Hz
239 × 245 × 220
2
DF-101S
intelligent
Max 2000ml
Stepless speed regulation 0-2600Room temperature-400 ℃
Room temperature-400 ℃
Intelligent automatic
220V / 50Hz
239 × 245 × 220
Digital display
Digital display automatic
220V / 50Hz
239 × 245 × 138
3
CL-200
flat
3000ml
Stepless speed regulation 0-2600Room temperature-400 ℃
Pressure and temperature control
220V / 50Hz
160 × 170 × 216
4
DF-101C
Small
Max 1000ml
Stepless speed regulation 0-2600Room temperature-400 ℃
Pressure and temperature control
220V / 50Hz
160 × 170 × 216
5
DF-101D
Small
Max 1000ml
Stepless speed regulation 0-2600Room temperature-400 ℃
Digital display automatic
220V / 50Hz
395 × 295 × 335
6
DF-101T
Special
5000ml max
Stepless speed regulation 0-3000Heating temperature
Digital display automatic
220V / 50Hz
239 × 245 × 220
(Xie Yinan / Editor)
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