LNB brand DC series low temperature thermostat is a high-precision constant temperature source with its own refrigeration and heating. The new low temperature thermostat circulating flow rate is 6L/Min and the temperature is more stable. The cryostat can be used for constant temperature experiments in the water tank of the machine, or connected to other equipment through a hose, and used as a constant temperature source. The new low temperature thermostat is widely used in petroleum, chemical, electronic instrumentation, physics, chemistry, bioengineering, medical and health, life sciences, light industry food, physical property testing and chemical analysis, research institutes, universities, quality inspection and production departments. Provides a hot and cold controlled, uniform temperature field source for the user's work, constant temperature test or test on test samples or products, or as a heat source or cold source for direct heating or cooling and auxiliary heating or cooling. .
Product feature editing
â— Fully enclosed compressor unit refrigeration, the refrigeration system has multiple protection devices for overheating and overcurrent.
â— The circulation pump can externally introduce the constant temperature liquid in the tank to establish a second constant temperature field.
â—The cold liquid in the tank can be externally led, and the experimental container outside the cooling machine can also be directly subjected to low temperature and constant temperature experiment in the tank.
â— Adopt XMT analog digital PID automatic control system, temperature digital display.
â—The inner liner and the countertop are all stainless steel, clean and hygienic, beautiful and corrosion resistant.
â—The DCW series is horizontal and easy to place in the super-stage.
Compressor note in the cryostat
Compressor is one of the important components in the cryostat. Its working principle is mainly based on the relationship between pressure volume and temperature in physics. When the mass of gas is constant, the product of pressure and volume is a constant. Therefore, to achieve a doubling of the pressure per unit mass of gas, it is necessary to reduce its volume by half. All cryostat compressors are gas compressed according to this principle.
In general, the physical ways to achieve gas compression are as follows:
The relatively static gas compression volume changes and the flow path of the flowing gas changes.
1. Relatively static gas volume changes. Such as live-type compressors, rolling rotor compressors, screw compressors, etc.
2. The change of the flow path of the flowing gas, such as a scroll compressor or a jet compressor. Such as fully enclosed compressor unit refrigeration, refrigeration system with overheating, overcurrent multiple protection devices
Low temperature bath structure
The outer casing is made of metal plate and the control box is directly mounted on the water tank. There are two condensate pipes in and out of the water nozzle. The imported high-quality water pump is used as the circulating power in the water tank to solve the problem of uneven temperature and temperature, so that the temperature control accuracy and water uniformity of the instrument can reach higher requirements. This product can be circulated inside and outside. It can be used as internal circulation by connecting two inlet and outlet pipes with latex tube. Remove the latex tube and connect the two water pipes to the inlet and outlet of the reaction kettle to form an external circulation, close to the control panel. Only the copper water pipe is the water outlet pipe connected to the pump, and the other is the water inlet pipe. Please be careful not to make a mistake when connecting, so as to prevent the water from flowing back when starting up.
Low temperature thermostat components and internal operating principles
1. Low temperature thermostatic tank components: compressor, condenser, evaporator, fan (inside and outside) circulating water pump, stainless steel inner tank, heating tube, intelligent temperature control table.
2, the internal operating principle of the low-temperature tank: after the compressor is operated, the suction-compression-exhaust-condensation-throttle-re-evaporation heat-absorbing vaporization. The water temperature is lowered to the temperature set by the temperature control table, such as temperature control. The table setting temperature is higher than normal temperature. The contactor in the temperature control table works automatically, giving the heating tube current signal, and the heating tube starts to work, when working in the low temperature bath. The inlet and outlet of the whole machine can be used to make internal or external circulation of the water source inside the machine, and the water source inside the machine can also be cited. A second constant temperature field is made outside the cryostat.
How to use the cryostat
This instrument uses 220V AC power supply. Please make sure that the rated current of the power socket is not less than 10A before use and have a safety grounding device (please connect the grounding device in the working room when using). When adding water, please pay attention to the upper cover not less than 8cm. You must use soft water, preferably distilled water. Do not use hard water such as well water, river water or spring water to prevent the heating tube from bursting and affecting the sensitivity of the constant temperature. Please use the temperature control instrument manual correctly, set the required temperature value >
First turn on the power, set the desired temperature value on the meter according to the instructions. When the temperature reaches the set temperature, you can turn on the cycle switch, so that all the programs enter the normal working state.
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