博文

目前显示的是 九月, 2020的博文

Liquid crystal control screen biochemical incubator, accurate temperature control, suitable for all kinds of laboratory research

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 Liquid crystal control screen biochemical incubator , precise temperature control, suitable for various laboratory scientific research use, the following Kenton staff to take you to understand the biochemical incubator structure and operation guide

What does industrial oven safety item have?

 When some manufacturers are using the industrial oven , did not read a few attention items carefully, but produce danger, can cause irreparable loss, so, for the sake of safety, must know the safety item of a few industrial ovens. 1. The use environment of industrial ovens is strictly prohibited from being close to inflammable and explosive articles such as water and paint. Otherwise, there is a risk of explosion. At the same time when the industry oven exhaust emissions, must be connected with the exhaust pipe. Most of the glue, the baked goods in the paint in the high-temperature environment will have part of the harmful gas to the human body, such as getting a timely discharge, harm to the health of personnel. Accordingly, when using the industrial oven, must stay away from the dangerous article, avoid explosion danger thing to happen. 2. When baking things with high humidity, a tray should be placed at the bottom of the oven to avoid dripping water or oil and corrosion of the inn

What kind of incubator is good for microbial culture in laboratory

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What kind of incubator is good for microbial culture in laboratory? In fact, there are great differences between different microorganisms, and the prices of different incubators vary greatly. It is important to choose the right incubator. If the microorganism is aerobic, use ordinary incubator. Constant temperature incubator , biochemical incubator, mold incubator can be one of the options. If it is anaerobic, you need to buy an anaerobic incubator . Anaerobic incubator is a special device for bacteria culture and operation in anaerobic environment. It can cultivate the most difficult anaerobes to grow, and can avoid the danger of death when anaerobic organisms are exposed to oxygen when operating in the atmosphere. If it is algae or fungal microorganisms, it is best to have a light incubator , better choose an artificial climate chamber. There are corresponding liquid medium and culture conditions for algae species. The medium is prepared according to the formula and the algae species

What are the safety issues of industrial ovens?

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 Some manufacturers do not carefully read some precautions when using industrial ovens . Once there is a danger, it will cause irreparable losses. Therefore, for the sake of safety, we must know some safety matters of industrial ovens. 1. The use environment of an industrial oven is strictly forbidden to be close to inflammable and explosive articles such as Tianna water and paint. Otherwise, there is a danger of explosion. At the same time, the exhaust pipe must be externally connected to the exhaust outlet of the industrial oven. Most of the baked goods in glue and paint will produce some harmful gases to the human body under a high-temperature environment, and if they are discharged in time, they will endanger people's health. Therefore, when using the industrial oven, it is necessary to keep away from dangerous goods and avoid explosion hazards. 2. When baking something with high humidity, a tray should be placed at the bottom of the oven to avoid dripping water or oil and cor

Key points of Laminar flow cabinet's choice

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Laminar flow cabinet  (also called purification workbench) is often used for product protection in biotechnology, pharmacy, life science, and precision electronics. The following points should be paid attention to when choosing clean bench 1. Is there a microcomputer control technology As a precision experimental instrument in the laboratory, whether clean bench has intelligent control technology is one of the key points to choose. The microcomputer control technology can display the state of lighting, sterility, air volume and other parameters in real-time, and has the functions of sterilization and lighting interlocking. The wind speed can be adjusted in multiple stages, which can protect the operators from being burned by ultraviolet lamps and ensure the operation safety. 2. Is it easy to clean and maintain The laminar flow cabinet  should be cleaned and sterilized frequently, and it should be maintained daily. It should be designed with removable and movable combined tripod. And t

The new high-temperature drying oven in the laboratory has been smoking since it was started up, what is the reason?

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The high-temperature drying oven in the laboratory, when the temperature rises to 150 ℃, the oven smokes and has a burnt smell. Is this dangerous? If it is ruled out that there is a circuit problem in the oven, the problem is not big. The reason is that the insulation layer of the newly produced high-temperature oven contains some impurities, and there is a wax tube on the power line. When heating for the first time, the impurities in the insulation layer and the paraffin on the wax pipe will volatilize due to heating, which will smell burnt or even smoke It's good to have these ingredients evaporated a few times. Therefore, before formal use, it is suggested that samples should not be put in first. Close the door, loosen the exhaust cover on the top of the box, turn on the power switch, and set the temperature controller at 100 ℃. At this time, the temperature inside the chamber starts to rise. When the temperature rises to 100 ℃, the temperature controller will automatically kee

What to look for when choosing an industrial drying oven?

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An industrial drying oven is an apparatus that provides heat drying, massaging, and other physical aging for all types of materials. What issues should I be aware of when purchasing an industrial drying oven ? Kenton laboratory to show you. 1, the test temperature: general industrial oven temperature control range in the room temperature +5 ~ 250 (some models can reach 300 °) when you choose to choose the temperature should be higher than the test needs more than 50 degrees, because the laboratory itself needs a test space. For example, if you are testing at 100°, you should choose an oven at least 150° or higher. Above 300°, you need to use a high-temperature oven. Trays: you can layer the oven. Configuration trays, there are net trays, solid trays, perforated trays. According to their own products, choose different trays, in the purchase of the oven, manufacturers will give one or two trays, more need to buy separately. 3, the size of the oven: the general choice of the size of the

How to clean the stainless steel surface of light incubator?

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The light incubator is made of stainless steel. Different machines have different requirements on how to clean stainless steel. The stainless steel surface of the light incubator must be cleaned and maintained regularly to prolong its service life. Kenton Instrument tells you how to clean the incubator. 1. The grease, oil, and lubricating oil on the stainless steel surface of the light incubator shall be cleaned with a soft cloth, and then cleaned with neutral detergent or ammonia solution or special detergent. 2. If there is dust on the stainless steel surface of the light incubator and dirt is easy to remove, it can be washed with soap, weak detergent, or warm water. 3. Illuminate the trademark and film on the stainless steel surface of the incubator at a constant temperature, wash it with warm water and weak detergent, and scrub it with alcohol or organic solvent. 4. There are rainbow lines on the stainless steel surface of some light incubators, which are caused by excessive use o

Video description of biosafety cabinet II

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  Kenton secondary biological safety cabinet is the main safety protection equipment for biological experiments. The use of clean airflow, negative pressure leak prevention, and other micro-computer control technology can effectively prevent toxic and harmful air suspended particles from injuring the experimental operators and ensure the safety of the experimental environment.

How to detect the vacuum deviation value of vacuum drying oven

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Generally speaking, the purchase of a vacuum drying oven will have vacuum control, which can be divided into electronic automatic control or manual control. "0" on the vacuum gauge indicates positive atmospheric pressure and "- 0.1" indicates an absolute vacuum. The indication value on the vacuum meter does not represent the absolute value of a vacuum degree, but only represents the relative value of a vacuum degree. How to detect the vacuum deviation value of a vacuum drying oven ? Turn on the vacuum pump, when the vacuum degree is close to - 0.1MPa, it basically reaches the limit value of the vacuum used in the vacuum oven . After the indication value is stable, record the pressure indication value of the standard vacuum gauge and the pressure indication value of the vacuum gauge equipped with a vacuum chamber. Release the vent valve of the vacuum tank slowly and evenly. In this process, when the pressure indication of the vacuum gauge equipped with the real empt

What are the methods of using the vacuum drying oven?

The electric vacuum drying oven , as a basic tool for experimental research, is basically available in every laboratory, and there are certain differences in the use of each lab, summarized in the following ways. 1. The temperature is generally controlled at 50 ~ 60 degrees, phosphorus pentoxide placed in the oven, the oil pump vacuum, vacuum up the pump off, if the vacuum drops during use, open the oil pump and then pump, repeatedly. 2. Do not turn off the oil pump, day and night operation, until the end of drying 3. do not put phosphorus pentoxide in the oven, if the use of the process found in the oven wall attached to water droplets, open the door to wipe to remove until the end of the dry oven 4 Using circulating water vacuum pump, the vacuum degree of water ring pump is limited by the saturated vapor pressure of water, the vacuum degree can only reach 2000-3000Pa.(Oil pump can reach 130Pa). As to whether to use oil pump or water ring pump, it should depend on whether the material

laboratory biological safety cabinet

Biosafety cabinets are widely used in different fields: scientific research, teaching, clinical testing, and production. This kind of safety equipment adopts a large number of unique design and construction, providing the best safety protection for the environment, operators, and experimental objects. Composition of biosafety cabinet : High-efficiency filter: G series is equipped with a ULPA ultra high-efficiency filter with an efficiency of 99.999%, and D series with HEPA high-efficiency filter with an efficiency of 99.995%. Cabinet structure: external 1.2mm cold rolled steel, white epoxy resin baking paint; internal 1.0mm 304 stainless steel. The biosafety cabinet can be divided into three types: Grade I, II, and III. according to the inlet airflow speed, exhaust mode, and circulation mode, the secondary biosafety cabinet can be divided into four levels: A1 type, A2 type, B1 type, and B2 type. Different types of biosafety cabinets can be selected according to the needs of the labor

What are the pollution sources of cell culture?

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Cell contamination can not be completely eliminated, but it can reduce the frequency of occurrence and the severity of the consequences. Cell pollution can be divided into physical pollution, chemical pollution, and biological pollution. The common examples are: the incubator temperature is too high, the equipment that can cause mechanical vibration is placed around, the reagent is placed in the refrigerator with a glass door for a long time to be exposed to light. Physical pollution is often ignored or generally classified as chemical pollution. The use of an incubator can reduce cell pollution. For example, in order to ensure the refrigeration effect, it is recommended that the condenser should be cleaned every 12 months, and the equipment should not be installed in the direct sunlight. Installation in a direct sunlight location may cause the equipment to fail to achieve the expected performance. It can be used in plant culture, breeding test, cultivation and preservation of bacter

How to measure germination rate with an incubator?

 Incubators are often used in laboratories, both in research facilities and school laboratories, to perform an experiment on extracting compost sample extracts to determine seed germination rates. So, how do you determine the germination rate using an incubator? In the experiment, 20 seeds (can be radish seeds) were placed on a piece of filter paper in a 9 cm Petri dish, 5ml of extraction solution was added and incubated in a biochemical incubator at 25 degrees Celsius for 5 days (48hr is enough if only germination rate is required), two copies of the experiment were made, one in the biochemical incubator and one in the constant temperature and humidity incubator (60% humidity). Then according to the formula to calculate the speed germination index. Constant temperature biochemical incubator is a water analysis of BOD determination, bacteria, biochemical, microbial culture protection, plant cultivation, breeding experiments of professional constant temperature equipment. The constan

How to use drying oven to identify high quality wax emulsion?

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Wax emulsion is an important additive for finishing materials, which can significantly improve the softness, plasticity, and handle properties of the leather finishing layer. What is a high-quality wax emulsion? This can be identified using a drying oven . Viscosity test: viscosity and content test method, 1. Use tu-4 viscometer to measure the viscosity of the measuring cup 2. The content of the effective substance in two cups was measured by oven drying method (2 g sample tin paper was laid on the bottom of the constant temperature drying oven (the temperature was set at 105 ℃ and the time was set for 2 hours) conclusion: The data test showed that the lower the viscosity, the more stable the wax emulsion quality was when the effective content was the same. The constant temperature drying oven DHG series of Kenton lab apparatus company is suitable for drying, heat treatment, and heating. It is suitable for users who have higher requirements for temperature uniformity. It is the basic

How to remove CO₂ and O₂ in the constant temperature and humidity chamber without affecting the temperature and humidity inside the chamber?

 The constant temperature and humidity chamber can provide a stable temperature and humidity environment, simulate various climatic conditions, especially suitable for sample stability test, long-term experiments, shelf-life test and the cultivation of plants, seeds, and microorganisms, with the advantages of automatic defrosting, multi-layer security protection, to meet the needs of long-term operation and environmental protection. How to remove CO₂ and O₂ in the constant temperature and humidity chamber without affecting the temperature and humidity of the chamber during the experiment? Generally, the temperature and humidity are controlled and adjustable by passing nitrogen gas. It should be noted that the constant temperature and humidity chamber tank is recommended to use pure water or distilled water to ensure that the water humidification is clean. Kenton laboratory LRH series constant temperature and humidity chamber have power failure protection function, parameters: 0: clo

Ultra clean table Purification table dust-free, Laminar flow cabinet parameters

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  Laminar flow cabinet Cleanliness rating: The international ISO 14644.1 standard, CLASS 5 (U.S. Federal 209E, 100 level) wind speed:0.3~0.6m/s(Adjustable) Noise (dB) :≤62 Vibration half peak: ≤3μm(X、Y、Z direction) High-efficiency :filter Efficiency 99.99% Illumination(LX):≥300 Work environment: Ambient temperature 10~30℃, Relative humidity below 70%, No obvious vibration and dust around.

Constant temperature and humidity incubator-LRH Cell, plant, bacterial culture, bioengineering, water analysis

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  Constant temperature and humidity incubator-LRH Cell, plant, bacterial culture, bioengineering, water analysis. The above video can be opened, there will be a detailed introduction of the constant temperature and humidity chamber , as well as the steps of the tutorial. KENTON Apparatus Ltd.:en.kentonchina.com

what should be attention on using shelf individual heating vacuum oven?

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 Dzf-30 series vacuum drying oven , each layer of the board with its own independent heating tube, can set different temperatures for each layer. It is used in biochemistry, college, scientific research, and other fields for vacuum drying, preservation, disinfection, and sterilization of articles. In order to make the equipment run normally and get the best performance, we need to pay attention to some key points when using it: 1. When you start the machine for the first time or when the machine is working in the environment with a large temperature change (more than 20 ℃), the self-tuning function must be started. In the process of equipment self-tuning, it is necessary to maintain the continuity of power supply and minimize the interference of the power grid to the equipment, or restart the self-tuning. If the temperature does not meet the set value, the self-tuning can be turned on again. 2. Different drying time should be selected according to different drying objects and humidity

The reason why constant temperature and humidity chamber does not cool down

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The important system of the constant temperature and humidity chamber is the refrigeration system, the main operation is dependent on the compressor drive, so the compressor is the main core components of the constant temperature and humidity chamber. In the use of constant temperature and humidity chamber, may appear down not to ask the situation, most cases are considered to be the compressor problem. Analysis: constant temperature and humidity chamber in the use of the process suddenly in addition to no temperature, should observe the refrigeration compressor in the test chamber operation process can start, the compressor in the environmental test equipment operation process can start, indicating that from the main power supply to the compressor electrical line is normal, the electrical system also no problem. Constant temperature and humidity chamber electrical system no problem, continue to check the refrigeration system. First of all, check the exhaust and suction pressure of t

Video explanation and operation of artificial climate chamber

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  Video explanation and operation of the artificial climate chamber , simulate the day and night light changes and climate conditions, to meet the multi-segment ladder programming controlled; can be a long-term culture experiment. Suitable for biological tissue, cell culture, plant culture, small animals, and insects feeding to use.