Common faults and solutions in the use of cryostats
Common faults and solutions in the use of cryostats As a high-precision constant temperature source for refrigeration heating, and a unique internal and external circulation function, the cryostat is popular among the users of the laboratory. What are the faults often encountered in the use of the cryostat, and what are the corresponding solutions? 1. When the cryostat first runs, the instrument does not heat or cool, what is wrong with this? The cryostat is generally a compressor that combines heating and cooling. This avoids multiple operations of the instrument program and prolongs the heating and cooling time. The instrument is generally equipped with heating insurance and refrigeration insurance. Generally, the instrument does not heat or cool. You can check whether the instrument heating insurance or refrigeration insurance is loose. If it is not loose, you can unscrew the baoxiantao and check if the fuse is burned. If you replace the fuse in time, you can run normally. 2. The cryostat has been used for more than a year, and the cooling rate is getting slower and slower? A: The seemingly many problems and malfunctions of the cryostat are caused by the lack of regular maintenance. The electric power of the cryostat 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. The cooling effect will be greatly reduced. Generally, the decrease in cooling capacity under normal use conditions is caused by poor ventilation or high ambient temperature. There is also timely maintenance of the tank in the tank, long-term use, should be cleaned in time, to keep dry. 3. The water cycle was normal before use, but now the noise is much larger than before? A: This problem is also related to the low temperature bath water cycle. As we all know, 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, do routine maintenance work, regularly clean the inner tank, and stop it for a long time to keep the tank dry. For daily cleaning and precautions, please refer to the precautions for the cryostat. 4, outside the low temperature thermostat circulating leaking gas, sometimes there are a few drops on the ground for a while, is there a local leak on the waterway? In general, all interfaces in the instrument transfer process are sealed with high-strength glue, and there is no leakage in the waterway. However, sometimes the relative humidity in the air with high ambient temperature is too large. Because of the low temperature operation, the water pump, the water pipe joint and the external water pipe in the water circuit of the water circulation tend to condense dew. After accumulating more, it drops onto the ground. It is not a water leak, so you can use it with confidence. If you feel that this operation is not very reliable, you can turn on the air conditioner to lower the room temperature. Frozen French Butter Grilled Fish Delicious French Butter Grilled Fish,French Butter Grilled Fishs,French Butter Grilled Fish Seafood Zhoushan Banddfoods Co., Ltd. , https://www.bandd-food.com