The latest application temperature drop | program-controlled temperature drop parameters

by:CBFI     2020-10-05
Latest program temperature drop | program-controlled temperature drop parameters to

program control refrigeration units ( Commonly known as: program thermometer) USES the microcomputer control technology, specialized software, can accurately control the liquid nitrogen volume, thus ensuring the cryopreserved biological products to suitable for freezing rate and cooling frozen. The instrument has simple operation, the man-machine interface.
clinical medical work at low temperature has developed rapidly in our country, promoted the growth of transplantation medicine, especially in the bone marrow, blood stem cells, skin, cornea, endocrine glands, and blood vessels and valves of cryopreservation and transplantation application got remarkable results. Successful hematopoietic stem cell transplantation is dependent on the preservation of the hematopoietic stem cell vitality. Biological samples in the process of cooling of frozen, when change from liquid to solid phase transition period will release a certain quantity of heat, make its temperature picks up, don't control the cooling rate of the freezing processes will lead to cell death. Accurately the phase transition point of biological sample, using microcomputer temperature program, in order to increase the amount of liquid nitrogen input when samples of phase transformation, to overcome the phase transition temperature of the sample back to rise, make the cell safety and quickly through the phase change period, which is the key to improve the survival rate of frozen samples. Main technical index being is



range of temperature control: 40 ℃ ~ - 180℃.

temperature accuracy: error & lt; 0. 5 ℃

the cooling speed: 0. 1 ℃ / min ~ 50 ℃ / points within the scope of the optional

heating speed: 0. 1 ℃ / min ~ 30 ℃ / min range of optional

the product type being fostered





type no.



technical reference number





TF - PA- I



range of temperature control: 40 ℃ ~ - 90℃; Cooling speed: 0. 1 ℃ / min ~ 30 ℃ / min range of optional





TF - PA



range of temperature control: 40 ℃ ~ - 110℃; Cooling speed: 0. 1 ℃ / min ~ 40 ℃ / min range of optional





TF - PA- II



range of temperature control: 40 ℃ ~ - 150℃; Cooling speed: 0. 1 ℃ / min ~ 40 ℃ / min range of optional





TF - PA- III



range of temperature control: 40 ℃ ~ - 180℃; Cooling speed: 0. 1 ℃ / min ~ 50 ℃ / points within the scope of the optional





instrument structure being fostered: the instrument is composed of the following four parts ( Standard configuration) :

microcomputer system: a built-in refrigeration control card, as long as the software will be run when frozen. 。

cooler: inside and outside the whole stainless steel structure. Frozen capacity machine is not less than 200 * 200 * 200 mm. Can accommodate 160 or bags eight freeze pipe.

liquid nitrogen tank and liquid nitrogen pressurizer: liquid nitrogen pressurizer is installed on the 30 lisheng liquid nitrogen tank, the tank from the pressurization, maintain stability of the pressure regulator.

a software function being fostered

(1) display function:

run as shown in figure 11. Every step, every function has a screen display. Real-time display instrument working state, three road temperature data and curve.
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