Problems encountered during the use of cryogenic constant temperature circulators and solutions

Problems encountered during the use of cryogenic thermostat circulators and how to solve them

1. The water cycle was normal before use. Now it is found that the noise is much larger than before. What is the reason?
Solution: As mentioned above, the daily maintenance work of the water cycle is also related to this problem. 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 a leak in the water cycle. Sometimes there are a few drops on the ground. Is there a leak on the waterway? Generally speaking, there is no leakage in the waterway during normal use. 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 are concerned about this, turn on the air conditioner to lower the room temperature or dehumidify to avoid dew.

2, the water cycle has been used for more than a year is normal, but now the cooling rate seems to be getting slower and slower, the more obvious the temperature is higher?
Solution: Water recycling is easy, but regular maintenance work can't 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.

LNB brand HX series cryostat circulators provide high and low temperature liquids in the temperature range of -40 °C ~ 105 °C, and low temperature constant temperature circulators to meet the needs of high temperature instruments with high and low temperature reactions. . 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.

Protective Goggles

It can prevent some medicine or blood from splashing on the face, thus protecting the eyes. This kind of glasses is generally used in conjunction with masks and surgical caps to fully protect the doctor's head.
[Functions of medical eye masks]
1. Prevent blood, potion and other liquids that cause damage to the skin from causing unpredictable damage to the eyes.
2. It can prevent the impact of objects on the eyes during close surgery.
3. The inner space of the eye mask is large enough for doctors who wear myopia glasses.

4. The breathability must be good, generally there are vents