Common problem handling of cryostat

Five common fault handling methods for cryostat 1. When the cryostat is first operated, the instrument does not heat or cool. What is wrong with this? The cryostat is generally a compressor that combines heating and cooling, which avoids Multiple operation of the instrument program, prolong 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, Unscrew the condom and check if the fuse is burned. If the fuse is replaced in time, the instrument will operate normally. 2. The cryostat has been used for more than a year, and the cooling rate is getting slower and slower. A: The low temperature bath seems to be a lot of faults and faults because it is not caused by 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 sponge, 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 before the use is normal, but now it is found that the noise is much larger than before? A: This problem is also related to the low temperature bath water cycle. 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, 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. There is a leak in the outside of the low-temperature thermostatic tank. Sometimes there are a few drops on the ground. Is there a local leak on the waterway? Generally speaking, all the interfaces in the instrument transfer process are sealed with high-strength rubber industry, and the waterway will not There is a leak. 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 are prone to condensation, and when it accumulates 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 safe, you can turn on the air conditioner to lower the room temperature.