Shanghai Haozhuang Instrument Co., Ltd. has developed the LNB brand low-temperature thermostat, which is energy-saving and environmentally friendly, leading the country. Shanghai Haozhuang follows the principles of survival by quality, development by technology, efficiency by management, and credibility by service. It makes every set of equipment, every project, every link, strictly abides by credibility and commitment, and is willing to take the most Excellent quality and service have won the trust of users. Shanghai Haozhuang has a recognized team of experts in the industry and first-class scientific and technological talents. With its profound understanding and mastery of scientific instrument technology, on the basis of independent research and development of core technology of scientific instruments, it has not only developed low temperature constant temperature instruments, ultrasonic instruments, and cabinets. Instruments, microbiological instruments, ice-making refrigeration instruments, laboratory supporting instruments, and gradually formed a product pattern of various scientific instruments and technical reserve products.
Shanghai Haozhuang Instrument Co., Ltd. developed the LNB brand low-temperature constant temperature series, and its products are sold all over the country.
Internal structure and principle of use:
1. Low temperature thermostat parts: compressor, condenser, evaporator, fan (inside and outside) circulating water pump, stainless steel liner, heating tube, intelligent temperature control meter.
2. The internal operating principle of the low-temperature tank: after the compressor is operated, it will be vaporized by suction-compression-exhaust-condensation-throttling-and then low-temperature evaporation to absorb heat. The water temperature will be reduced 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 meter works automatically, giving the heating tube a current signal, the heating tube starts to work, when working in the low temperature constant temperature bath. The inlet and outlet of the whole machine can be used for internal circulation or external circulation of the internal water source, and the internal water source can also be led out. Do the second constant temperature field outside the cryostat.
How to use cryostat
This instrument uses 220V AC power, please make sure that the rated current of the power socket is not less than 10A before use, and it has a safety grounding device (please connect the grounding device to the working room when using it). When adding water, please note that it is not less than 8cm away from the upper cover. Soft water must be used, preferably distilled water. Do not use well water, river water, spring water or other hard water to prevent the heating tube from bursting and affecting the constant temperature sensitivity. Please use it correctly according to the instructions of the temperature control instrument, set the required temperature value> first turn on the power, set the required temperature value on the instrument according to the instruction, when the temperature reaches the set temperature, you can turn on the cycle switch, so All programs enter the normal working state.
Precautions for use
1. Add the liquid medium into the front tank of the low temperature thermostat, the liquid level of the medium should be about 30mm lower than the worktable, otherwise the heater will be damaged when energized;
2. The selection of the liquid medium in the low-temperature constant temperature bath should meet the following principles:
When the working temperature is 5 ~ 85 ℃, the liquid medium generally uses water;
When the working temperature is 85 ~ 95 ℃, the liquid medium can choose 15% glycerin aqueous solution;
When the working temperature is higher than 95 ° C, the liquid medium generally uses oil, and the open cup flash point of the selected oil should be higher than the working temperature by more than 50 ° C;
3. Power supply: 220V50Hz, the power supply should be greater than the total power of the instrument, the power supply must have a good "ground" device;
4. The instrument should be placed in a dry and ventilated place with no obstacles within 300mm around the instrument;
5. When the working temperature of the constant temperature bath is high, you should be careful not to open the upper cover and do not enter your hand with the hand to prevent burns;
6. After use, all switches are turned off to cut off the power supply;
The instrument should do regular cleaning work to keep the work surface and operation panel clean;
Always pay attention to observe the liquid level in the tank. When the liquid level is too low, the liquid medium should be added in time; considering the safety factors, we stipulate that the constant temperature tank above 100 ℃ is made into an internal circulation. If the external circulation is changed according to the customer's requirements, the customer should pay special attention to the firmness of the connection of the outlet pipe to prevent it from falling off to avoid burns.
Shanghai Haozhuang has not only developed low-temperature and constant-temperature instruments, ultrasonic instruments, cabinet instruments, microbiological instruments, ice-making refrigeration instruments, and laboratory supporting instruments, but also gradually formed a product pattern in which various scientific instruments and technical reserve products develop together. . Quality assurance, customers are welcome!
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