First of all, we would like to express our sincere gratitude for purchasing and using the MCR-3 microwave chemical reactor. Before using this product, please read the user manual carefully and use it correctly based on a full understanding of the performance indicators and precautions.
　　
catalogue
　　
Heating principle
　　
Product Features
　　
Technical Specifications
　　
Keyboard usage
　　
LCD (Liquid Crystal Display)
　　
operating steps
　　
Single power control mode
　　
Precautions
　　
after-sales service
　　
　　
　　
Special Reminder:
　　
1: This equipment is a normal pressure testing instrument, please do not conduct pressure tests inside this instrument.
　　
2: Remember not to turn on the microwave without load to avoid damaging the temperature sensor and magnetron.
　　
1、 Heating principle:
　　
Microwave is an extremely short wavelength electromagnetic wave, which, like radio waves, infrared radiation, and visible light, belongs to electromagnetic waves. The frequency range of microwave is from 300MHz to 300KMHz, which means the wavelength ranges from 1 millimeter to 1 meter.
　　
The principle of microwave heating: Microwave heating is the use of microwaves as an energy source. When microwaves interact with material molecules, molecular polarization, orientation, friction, collision, and absorption of microwave energy produce thermal effects. This heating method is called microwave heating. Microwave heating is the process by which an object absorbs microwaves and generates heat on its own. Heating starts from both the inside and outside of the object, achieving simultaneous heating both inside and outside.
　　
Different substances have different abilities to absorb microwaves, and their heating effects also vary, mainly depending on the dielectric loss of the substance.
　　
The characteristics of microwave heating:
　　
Fast heating. Microwave energy propagates at the speed of light (3 × 1010cm/s) in an object, and can be converted into thermal energy of matter in an instant (within about 10-9 seconds), and the thermal energy can penetrate into the heated material without the need for thermal conduction process.
　　
Quick response capability. Can quickly start, stop, and adjust output power, with simple operation.
　　
Heat evenly. Heating both inside and outside simultaneously.
　　
Selective heating. Those with high dielectric loss will experience high temperature after heating, and vice versa.
　　
High heating efficiency. Due to the self heating of the heated object, there is no heat conduction process during heating, so there is no heat loss in the surrounding air and heating box.
　　
Strong heat penetration. The heat penetration depth and wavelength are on the same order of magnitude, ranging from a few centimeters to over ten centimeters, while infrared heating is surface heating with a penetration depth of only micrometers.
　　
2、 Product features:
　　
The MCR-3 microwave chemical reactor adopts technology to ensure the smooth progress of your experiments.
　　
1. Adopting microwave continuous output method: Research has shown that pulsed microwaves generate high threshold electromagnetic pulses at the moment of "on" and "off", resulting in significant temperature oscillations and easily damaging the morphology of organic molecules, thereby affecting the consistency of experimental results. The microwave continuous output method ensures the presence of microwaves at all times during the experiment. Overcoming the adverse effects of pulsed microwaves on experiments.
　　
2. Adopting microcomputer adaptive PID regulation technology: effectively overcoming the occurrence of overshoot phenomenon. The PID parameters can be adaptively tuned and flexibly adapted to different operating environments. When the ambient temperature, reactant volume, polarity, and heat capacity change, the MCR-3 microwave chemical reactor can adapt to the resulting effects and automatically modify the PID parameters to make the machine adapt to the new environment and maintain temperature control accuracy without decreasing.
　　
3. Adopting PTFE coated platinum resistance temperature sensor: PTFE coated temperature is directly inserted into the reaction system to collect the internal temperature of the reaction system. The reliable shielding device effectively eliminates any electromagnetic wave interference and self heating effect, making the collected data more reliable. The PTFE temperature sensor probe effectively resists corrosion from acids, alkalis, and organic solvents.
　　
4. Adopting a multi-stage working mode: You can set up 5 working hours. After one section of work is completed, the chemical reactor will automatically switch to the next section of continuous work. The maximum power, temperature, and time can be independently set for each time period, and the MCR-3 microwave chemical reactor will reach the * state in each stage.
　　
5. Real time curve display function: allowing you to more intuitively view temperature changes. Just press the flip button to see the temperature curve.
　　
6. Parameter storage function: Your input parameters will be saved in flash memory, making it convenient for your next boot operation without the need for repeated input. This machine uses Flash memory to save data during shutdown or power outage.
　　
7. Adopting a large-area touch panel: The distribution of buttons conforms to operating habits, with reasonable spacing and a more comfortable operating feel. And there is a sound prompt function.
　　
8. Adopting a large screen LCD display: effective pixels of 240 × 128, screen size up to 120 × 80mm. Synchronous display, working conditions set for five time periods, as well as microwave working status, microwave power, real-time temperature, and working time. Make the field of view wider and the viewing more comfortable.
　　
9. Temperature error correction function, if there is an error between the displayed temperature and the actual temperature, it can be corrected through a microcomputer.
　　
10. Equipped with a safe interlock switch: Under any circumstances, opening the furnace door will stop microwave radiation, ensuring the safety of the user.
　　
11. Magnetron overheat protection function: When the temperature of the magnetron is too high due to prolonged use or abnormal conditions, this machine can automatically cut off the power supply of the magnetron to avoid damage to the magnetron.
　　
12. Equipped with a built-in magnetic stirrer, the stirring speed is infinitely adjustable. Simultaneously equipped with a protective gas inlet.
　　
13. Open reaction system: Users can install standard reaction containers (with a volume of 100-500ml) and devices such as condensation, dripping, replenishment, and water separation according to the reaction conditions.
　　
14. Exhaust and smoke exhaust function
　　
3、 Main technical parameters:
　　
Power supply: AC220V ± 10% 50Hz Input power of the whole machine: ≤ 1350W
　　
Microwave frequency: 2450MHz ± 15Hz Microwave output mode: Continuous wave (continuous output)
　　
Microwave output power: ≤ 800W (continuously and automatically adjustable) Temperature measurement accuracy: Class 0.2
　　
Temperature control accuracy: ≤ 1 ℃ Temperature measurement method: Contact type PTFE temperature sensor
　　
Maximum operating temperature: ≤ 250 ℃ (freely set)
　　
4、 Keyboard usage:
　　
Number pad:
　　
Distributed with numeric keys 0-9. You can input the corresponding numbers on the LCD display.
　　
2. Use of Backspace Key:
　　
Equivalent to the delete key on a computer, it can delete the number entered at the cursor position. Press the delete key continuously, and the deletion order starts from the cursor position in column order, deleting data passing through the cursor position forward. After deletion, the LCD screen displays as empty.
　　
3. Use of page keys:
　　
The display of the LCD screen is divided into three pages, the * page is the function setting page, and the second page is the temperature curve display page, which displays the temperature trend. The third page is the temperature correction page, and the function of the page turning button is to switch between these three pages.
　　
4. Use of setting keys:
　　
Whenever you need to set or modify reaction conditions while using a reactor. The cursor will only flash when the setting key is pressed, and only then can input be made. Without using the setting key, the microcomputer will not accept any information you input. This instrument provides the function of real-time modification of reaction parameters, which can be modified by pressing the set button during the microwave reaction process.
　　
Use of the 5 confirmation keys:
　　
When you set the reaction conditions, out of caution, the microcomputer will not immediately operate according to the conditions you set. Only by pressing the confirm button will the microcomputer remember and operate according to the conditions you input. If you only set the reaction conditions without confirming and press the start button, the reactor will not work. To modify the reaction conditions during microwave reactor operation, simply press the confirm button and the reactor will operate according to the modified reaction conditions, without the need to press the start button again.
　　
6. Use of the activation key:
　　
After setting the reaction conditions and pressing the confirm button, press the start button, and the reactor will start working according to the conditions you entered.
　　
Use of the 7 close keys:
　　
Press the shutdown button during the operation of the reactor, and the reactor will stop working. Turn off the magnetron and fan, but do not turn off the LCD screen and microcomputer. When the reactor's operation meets the temperature and time period you have set, the reactor will automatically turn off the microwave without using the shutdown button.
　　
8. Use of cursor movement keys:
　　
There are four cursor movement keys, up, down, left, and right. The four cursor movement keys can help you quickly find the input position when setting or modifying reaction conditions, without deleting the data of the cursor passing through the position.
　　
5、 LCD display:
　　
The displayed content is shown in the figure:
　　
Work 1, 2, 3, 4, 5
　　
Setting up_______________
　　
Setting up_______________
　　
Setting up_______________
　　
Actual temperature ________ Effective power _______%
　　
The actual time is ___ minutes and ___ seconds. The microwave has stopped
　　
The content displayed on the large LCD screen includes:
　　
Working hours; Set gears; Set temperature; Set time; Actual temperature; Effective power; Actual time; Microwave working status. Temperature curve. Temperature correction.
　　
（1） LCD screen * page display content
　　
1. Work:
　　
The microwave reactor can be set for five working periods each time it operates. Represented by "one", "two", "three", "four", "five". Each column represents a working period. Enter the time stamp to move by column, used to input the gear, temperature, and time for that time period. Five working period numbers will be highlighted to indicate the current working period.
　　
2. Setting:
　　
The power of microwave reactors can be divided into 10 levels, which are used to limit the peak value of microwave input power. Among them, level 1 is the smallest level, and level 10 is the largest level, which means the nominal power of 100% microwave is 800W. Input beyond level 10 will be considered as level 10 by the microcomputer; Any input below level 1 will be considered as level 1 by the microcomputer, and will be corrected on the LCD screen when you press the OK button.
　　
After entering the corresponding gear, the microwave will operate between the maximum power and minimum power you have specified, automatically adjusting the power level to achieve the temperature you have set.
　　
3. Setting:
　　
The maximum reaction temperature of the microwave reactor is 250 ℃. You can input numbers between 0-250. An input temperature exceeding 250 ℃ will be considered as 250 ℃ by the microcomputer. And make corrections on the LCD screen when you press the OK button. Temperature setting is not required in power master mode.
　　
4. Set time:
　　
The reaction time can be set from 0 to 9999 seconds, and a number between 0 and 9999 can be entered. Due to the unpredictability of the time required for the heating process, the time you input is the duration of stay at the temperature you have set, which is the constant temperature time. The time taken for the heating process is not included in the set time. The set time starts counting when the actual temperature is 0.5 degrees lower than the set temperature and ends when the set time is reached. The reactor will automatically switch to the next working period or stop working.
　　
5. Actual temperature:
　　
When the microwave reactor power is turned on, after four seconds, the microcomputer automatically scans for errors, and the actual temperature starts to display. Displayed as one decimal place, which is 0.1 ℃. The temperature measurement accuracy of this instrument is ≤ 0.2 ℃.
　　
6. Effective power:
　　
The effective power displayed on the LCD screen is the power required to raise the temperature of polar substances. The displayed value is 0-100%. The lowest effective power during operation is 1%. When displayed as stopped, it means there is no microwave output.
　　
7. Actual time:
　　
The actual time displayed by the reactor refers to the time it takes from the start of microwave operation to the time you observe. This includes heating time and constant temperature time.
　　
Microwave working status:
　　
Displayed as microwave output and microwave stopped. Output in progress "and" stopped "are displayed in reverse. Enable you to have a more intuitive understanding of the working status of the reactor.
　　
（2） LCD screen displays the second page
　　
Display current temperature curve: When the screen is full, the previous data will be cleared and the graph will be redrawn. This page has no content for customers to adjust.
　　
（3） LCD screen displays the third page
　　
To display the temperature adjustment page: You can use the up, down, and directional keys of the cursor movement keys to correct the displayed temperature. When adjusting: You need to press the setting button first before the microcomputer will accept the information you input. The up arrow key on the cursor increases the displayed temperature on the basis of the displayed temperature, and the down arrow key decreases the displayed temperature on the basis of the displayed temperature. The correction amount per press is 0.1 ℃. After the temperature adjustment is completed, press the confirm button. The Flash memory of the microcomputer will be saved. Until the next revision.
　　
6、 Operation steps:
　　
1. Connect the power supply of the microwave chemical reactor and turn on the power switch. The power indicator light, furnace light, and LCD screen light up simultaneously.
　　
2. The chemical substances you need to react must be placed inside the microwave chamber.
　　
3. Set parameters for working hours
　　
The reactor is divided into five working periods. The gear, temperature, and time of each section can be independently adjusted.
　　
The gear input range is 01-10, where 01 is the lowest gear and represents 10% power. 10 is' zui ', which represents 100% power.
　　
The temperature input range is 0-250, indicating 0 ℃ to 250 ℃.
　　
The time input range is 0-999, representing 0 seconds to 999 seconds.
　　
There is a cursor jumping on the screen, indicating the current input position.
　　
Press each button on the touch panel, and a "beep" sound will automatically sound, indicating that this button is valid.
　　
Press the 0-9 numeric keys on the touch panel to enter the corresponding character at the cursor position. If the character already exists at the cursor position, it will be overwritten by the character entered this time. At the same time, the cursor automatically moves back to the next input position.
　　
Pressing the backspace key on the touch panel can delete the character at the cursor position, and the cursor will automatically move forward to the previous input position.
　　
Press the left and right cursor movement keys on the touch panel, and the cursor will move horizontally to the input position.
　　
Press the up and down cursor movement keys on the touch panel, and the cursor will move vertically up and down to the input position.
　　
4. Operate the microwave chemical reactor
　　
Press the confirm button on the touch panel to confirm that the set working period parameters are valid data. At this point, the LCD screen cursor will disappear and no longer accept new input data. The parameters confirmed this time will be saved in Flash memory and will not be lost after power failure.
　　
Press the touch panel start button, and the microwave chemical reactor will start working according to the user's settings, and the microwave will begin to emit. The microwave output is displayed in the lower right corner of the LCD screen. The LCD screen displays the current actual temperature, effective power, and actual time in real time.
　　
Press the close button on the touch panel, the microwave chemical reactor will stop working, and the microwave will no longer emit. The bottom right corner of the LCD screen shows that the microwave has stopped.
　　
Modifying reaction conditions during microwave chemical reactor operation: Press the touch panel setting button, and the LCD screen cursor will appear again to modify parameters. After modification, the touch panel confirmation button must be pressed to confirm. No need to press the open button again.
　　
5. Control of magnetic stirrer
　　
The control of the magnetic stirrer is independent and not controlled by a microcomputer. Turning the knob on the right side of the microwave chemical reactor door clockwise increases the speed of the magnetic stirrer, and vice versa decreases.
　　
7、 Constant power control mode
　　
When you don't need to control the temperature and only need to react at a certain microwave power, you don't need to enter the reaction temperature, just enter the gear (01-10 represents 10% -100% power). And the reaction time is sufficient.
　　
8、 Precautions
　　
1. Please close the reactor door properly. If the door is not closed properly, the lights inside the furnace will not light up, the magnetron will not work, and there will be no microwave output.
　　
2. It is strictly prohibited to turn on the microwave without load inside the furnace. To avoid damaging the magnetron
　　
3. Open the microwave oven door during the microwave reaction process. The program will stop running, and the magnetron will stop emitting microwaves. After closing the furnace door, you need to re-enter the reaction parameters or confirm the set parameters again. Restart.
　　
The microwave reactor should be placed horizontally. Avoid magnetic stirring from not working properly.
　　
Do not put metal objects into the furnace chamber to avoid metal ignition.
　　
Do not use corrosive or volatile chemical solvents to wipe the furnace body to avoid damage.
　　
When conducting micro or semi micro experiments, the carrier cannot absorb all the microwaves. Therefore, it will cause microwave feedback into the excitation cavity to damage the magnetron. So please place other absorbing materials inside the oven to absorb microwaves. For example, a certain amount of glycerol.
　　
When working in a microwave reactor, if abnormal temperature fluctuations are found on the display. Please do not use it again in case of other abnormal situations, and contact the manufacturer.
　　
9、 After sales service
　　
There is a microwave radiation source and high voltage inside the microwave reactor, and there is no structure available for users to adjust. Non professional technical personnel of our company are not allowed to open the outer cover.
　　
If there are any quality issues or abnormal situations during product use, please contact our company. Assisted by our company's professional technical personnel to solve the problem.