Shanghai Jingqi High-throughput Intelligent Microwave Digester MWD-12, Shanghai Jingqi Instrument Co., Ltd. (CAT#: STEM-GLE-2189-YJL)

Shanghai Jingqi High-throughput Intelligent Microwave Digester MWD-12, model MWD-12 is manufactured by Shanghai Jingqi Instrument Co., Ltd.
The high-throughput intelligent microwave digestion instrument provides a fast, safe and automatic solution for samples, and accelerates the speed of sample digestion under high pressure conditions. It is widely used in food, environmental protection, disease control, quality supervision, commodity inspection, scientific research institutes and other fields.

Host Parameters:
Power supply: 220-240 VAC 50/60Hz 8A
Microwave frequency: 2450MHz
Machine installed power: 2600W
(1) Power requirements: 220 VAC 50 Hz 15A
(2) Microwave source: professional microwave source, industrial grade microwave power supply, different power supply for household microwave ovens.
(3) Microwave output power Magnetron structure and power: It adopts dual magnetron bottom heating dislocation design, heating evenly, and automatically controlling a single microwave output. (Avoid the misalignment design behind the dual magnetrons, (avoid emitting microwaves at the back, causing the temperature of the outer ring jar to be higher than the inner ring temperature, the two rings of jars are uneven, and the inner ring is not completely digested) Maximum microwave output power: ≥ 2000W
(4) Microwave output characteristics: microwave non-pulse continuous automatic frequency conversion control, 0-100% automatic output
(5) Microwave uniformity: vertical two-way waveguide design, three-dimensional output technology, matching harmonic power frequency to achieve a high degree of field uniformity
(6) Microwave cavity: 66L, 316 grade all stainless steel cavity
(7) The self-locking buffer explosion-proof furnace door can automatically release the lateral pressure impact in advance when danger occurs, ensuring the personal safety of operators and the integrity of the furnace door structure. When the microwave is working, the furnace door cannot be opened, but the door can be opened when the temperature is below 80 degrees, which is safe and reliable. The touch screen opens the door to avoid the instability of the buttons.
(8) Exhaust and cooling system: The furnace chamber is equipped with a high-power exhaust system, and various reactions can be carried out continuously for a long time in a ventilated, safe and easy-to-observe environment. The furnace chamber is ventilated by an acid-resistant, high-volume centrifugal fan, with an exhaust air volume of not less than 5m3/min; the furnace chamber has an air-cooling function, which continuously cools the reaction tank, and the temperature and pressure are displayed in real time.
(9) Turntable design: 360° continuous rotation in the same direction, uniform microwave, to ensure the same microwave environment for each sample, improve the consistency of experimental results, and distinguish the damage of accessories caused by back and forth rotation.
(10) Control method: Siemens PLC, touch screen design, 8-inch TFT-LED (800X480 color) large screen display, long-distance direct reading reaction process, real-time display of temperature and pressure of closed reaction tank, and real-time display of temperature and pressure curve
(11) Operating language: Simplified Chinese
(12) Automatic protection function: it has a fault self-checking system; when a system fails in temperature control and pressure control, the instrument will automatically cut off microwave emission and alarm
Control System Parameters:
(1) Temperature control system: Non-contact infrared temperature control method is adopted, the temperature control is accurate and error-free, and high-precision long-wave infrared sensors are used; real-time detection controls and displays the temperature and curve in the microwave digestion reaction tank; the temperature of the whole tank is measured.
(2) Temperature control range: 0~350°C; temperature control accuracy: ±0.5°C; the actual operating temperature is below 300°C.
(3) Temperature control capability: rate heating function
(4) Pressure control system: Non-contact pressure control method is adopted, and the pressure control is accurate and error-free. It is a pressure control method with mature technology for 100 years. Real-time detection, control and display of the pressure and curve in the microwave digestion tank
(5) Pressure control range: range: 0~10MPa,
(6) Pressure protection: overpressure automatic adjustment/stop microwave emission and automatic alarm
Reaction Tank Parameters:
(1) the maximum temperature ≥ 350 ℃, the maximum pressure ≥ 1500psi; the operating temperature is below 300 ℃.
(2) inner tank material: PTFE material; imported improved. TFM
(3) Explosion-proof casing material: PEEK aerospace material
(4), inner tank reaction volume: 70ML.100ML optional
(5), high-pressure digestion tank batch capacity ≥ 12 samples / batch

The instrument adopts microwave non-pulse continuous automatic frequency conversion control, which prolongs the service life of the instrument and the uniformity of electromagnetic waves.
The cavity is specially made of 66L large-volume 316L stainless steel cavity material, and the self-locking buffer explosion-proof furnace door. When the reaction is abnormal, the buffer structure ensures the personal safety of the operator and the integrity of the furnace door structure.
The furnace door and the cavity are closely combined, and the microwave leakage meets the national standard.
The instrument uses a temperature and pressure dual control system to control the pressure and temperature of the digestion experiment and display it in real time.
360 ° continuous rotation in the same direction, uniform microwave, to ensure the same microwave environment for each sample, improve the consistency of experimental results.
When the pressure in the tank exceeds the set protection value, the microwave will automatically stop heating.
The safety explosion-proof film has a double insurance function.

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