博文

目前显示的是 十二月, 2020的博文

How to add water in constant temperature and humidity chamber?

 How to add water in constant temperature and humidity chamber ? This is something every lab worker is familiar with. The water tank should be placed on the top of the equipment before use, and then the water pipe should be inserted into the rear inlet and overflow outlet of the equipment, and the water tray should be placed under the outlet of the overflow pipe for use. It is necessary to inject enough pure water into the water tank, and the water humidifying particles are relatively large. If the humidity is required for a long time, the service life of the humidity sensor will be affected. If the water quality is poor, the humidity sensor will be short-circuited. Pure water is purified by membrane technology after multi-stage separation, which intercepts all soluble salts and substances with molecular weight greater than 100. When the humidity of the constant temperature and humidity chamber does not rise to the set value, the water level can be checked. The water level should be a

Difference between anaerobic incubator and carbon dioxide incubator

 Would you like to use an anaerobic incubator or carbon dioxide incubator for anaerobic bacteria culture? According to the general research, the concentration of O2 in anaerobic bacteria culture environment must be less than 1000ppm, and the stricter environment is less than 300ppm, so the CO2 incubator cannot be used to culture anaerobic bacteria. Anaerobic incubators and carbon dioxide incubators are different types of incubators, and they are different. The anaerobic incubator is a special device for bacteria culture and operation in an anaerobic environment, which can cultivate the most difficult anaerobic organisms and avoid the danger of death caused by contact with oxygen when operating in the atmosphere in the past. The inside is filled with mixed gas for replacement and then filled with nitrogen. If it is frequently inspected, it is recommended to buy an anaerobic incubator directly. The CO2 control range of carbon dioxide incubator is generally 0~20%. Artificial methods are

Constant temperature drying oven function setting

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The drying oven is provided with a double-layer toughened glass door observation window. Heat-resistant silicone rubber sealing ring is installed between the studio and the outer door, which increases the sealing between the door and the studio and effectively improves the insulation property of the cabinet working room. The drying box adopts LCD display mode, precision microcomputer intelligent PID temperature control system, with timing function and temperature control accurate, high precision characteristics.  When the temperature control effect is not ideal, the system can be self-tuning. In the process of self-setting, there will be a large temperature overshooting. Users should fully consider this factor before carrying out the self-setting of the system. In the non-set state, long-press the "Shift/self-setting" key for 6 seconds and then enter the system self-setting program. The setting indicator flashes. After the end of self-setting, the indicator stops blinking an

Incubators have questions about humidity

There are many incubators on the market without humidity control, and the inside of the incubator is very dry. Most people try to solve the humidity problem by draining the incubator, sprinkling it regularly, and observing it with a hygrometer. Humidity in the incubator is a very important, but often overlooked, factor in the incubation process. Some samples that are cultured have a need for humidity and some do not. In the case of cell culture, a saturated humidity environment prevents the escape of carbon dioxide from the culture medium, stabilizes the pH of the culture medium, facilitates cell growth, and ensures that the culture does not fail due to excessive drying. The Biochemical incubator needs to be filled with water to maintain the humidity. If the plate is kept at 37 degrees Celsius for a long time, it may be dry and can be sealed with plastic wrap, or water can be added to increase the humidity of the incubator.

Key points of using high temperature oven

The high-temperature oven USES a metal heating tube. Advantages of metal heating tube: high thermal conductivity and long service life. The use of a high-temperature oven should follow the following points: 1. If the vehicles of self-provided materials, such as trays and racks, etc., attention must be paid to the problem of ventilation and space should be ensured to be left for airflow. Because the airflow needs to pass through the materials up and down to cover all the materials before baking, so try not to press the materials tightly and prevent air permeability. 2. Put the materials on the tray as evenly and densely as possible, in order to avoid uneven baking of various parts. 3. The appearance and internal quality of different materials baked in a high-temperature oven are affected by the speed of dehydration, temperature, and humidity during baking. Therefore, it is necessary for users to constantly summarize their experience in practice so as to get the best effect. 4. Since t