Low temperature constant temperature circulator directly performs high and low temperature test

Shanghai Xinzhuang Instrument Co., Ltd. LZ brand HX series low temperature constant temperature circulator provides high and low constant temperature liquid in the temperature range of -40 °C ~ 105 °C, low temperature constant temperature circulator to meet the high temperature and low temperature reaction constant temperature instrument Need. The cryogenic constant temperature circulator is especially suitable for use with experimental equipment such as chemical reaction kettle, fermenter, rotary evaporator, electron microscope, Abbey, evaporating dish, biopharmaceutical reactor. The advanced internal circulation and external circulation pump system, the internal circulation makes the instrument temperature uniform and constant, and the external circulation pump outputs 16 liters / min ~ 18 liters / min in the flow of high, low temperature liquid. A variety of containers containing biochemical reagents or samples to be tested can be placed in the working tank volume of 8 liters to 40 liters, and directly subjected to high and low temperature tests or tests to achieve multi-purpose use of one machine.

Shanghai Xinzhuang tells you how to maintain the cryostat circulator:

1. Low temperature constant temperature circulator maintenance

1. The water cycle has been used for more than a year. Normally, the cooling rate seems to be getting slower and slower. The higher the temperature is, the more obvious it is. The solution is simple to use, but the regular maintenance work can not be ignored. There are a lot of seemingly faulty problems that are caused by not doing regular maintenance. The electric power of the water cycle itself and the heat taken away by the refrigerant from the load need to be removed from the radiator at the front hood. If the front hood is filled with dust and cotton wool, it will hinder the heat dissipation, and the cooling effect will be Great discount. Generally, the decrease in cooling capacity under normal use conditions is caused by poor ventilation or high ambient temperature.

2, the water cycle used before is normal, but now it is found that the noise is much larger than before, what is the cause of this, Xinzhuang for you

A. I mentioned the routine maintenance work of the water cycle, and this issue is also related to it. Everyone knows that there is a small amount of impurities in the water, that is, after the distilled water is added to the water tank, it is impossible to completely guarantee that there is no impurity at all. For the water cycle, the general temperature is set at 20 ° C, which is especially suitable for the growth and reproduction of microorganisms. After a long time, these microorganisms will block the filter of the waterway, causing poor water return and the pump will have a large noise. Sometimes these microorganisms are attached to the surface of the heat exchanger, causing the heat transfer effect of the heat exchanger to be deteriorated and the cooling capacity to be small. Therefore, we must do the routine maintenance work in strict accordance with the requirements in the manual, regularly clean the inner tank, and stop it for a long time to keep the tank dry. There seems to be water leakage in the water cycle. Sometimes there are a few drops on the ground. Is there a leak in the waterway? Generally speaking, during normal use, the waterway will not leak. When the relative humidity in the high ambient air is too large, the water pump, the water pipe joint, and the external water pipe in the water circuit of the water circulation are likely to condense dew. After accumulating more, it will drip onto the ground, and there is no need to worry that there is water in the waterway. The place where the water leaks. If you care about this, turn on the air conditioner to lower the room temperature or dehumidify to avoid dew.

2. Low temperature constant temperature circulator use precautions

1. Use low temperature tank - low temperature thermostatic tank to add liquid medium in the front tank, the liquid level of the medium should be lower than 30mm of the work board, otherwise the heater will be damaged when the power is on;

2. The selection of liquid medium in the cryostat should meet the following principles: When the working temperature is between 5 and 85 °C, the liquid medium is generally selected from water;

When the working temperature is 85 ~ 95 ° C, the liquid medium can be selected with 15% glycerol aqueous solution;

When the working temperature is higher than 95 ° C, the liquid medium is generally selected oil, and the open cup flash point value of the selected oil should be higher than the working temperature of 50 ° C or more;

Shanghai Xinzhuang Instrument Co., Ltd. is a manufacturer of experimental instruments and equipment, including low temperature constant temperature circulators, low temperature thermostats, high temperature circulators, low temperature coolant circulating pumps, etc. Welcome your inquiry!

Http://