博文

目前显示的是 七月, 2020的博文

Can co2 incubator and biosafety cabinet be put together?

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Co2 incubator is the equipment for immunology, oncology, genetic and biological engineering. It is installed in the place where the air is clean, the temperature difference is small, and there is no direct sunlight. There should be no strong electromagnetic field and radiation energy around. Biosafety cabinet provides the best protection for the environment, operators, and experimental objects. When installing the biosafety cabinet, it should be as far away from the airflow interference source as possible, and the airflow of the safety cabinet should be protected from the external airflow interference as far as possible in the direction. Based on the installation environment of the above two products, the CO2 incubator and the biosafety cabinet cannot be put together directly. It is necessary to keep a safe distance. It is better to put them in separate spaces.

How do I care for my mold incubator when it's sitting idle?

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The mold incubator is a kind of incubator, which can set the corresponding temperature and humidity in an enclosed space. It can be used for plant culture, breeding tests, culture, and preservation of bacteria, mold and microorganisms, and BOD determination for water analysis. Some laboratory staff, and then start up the mold incubator that has been idle for a period of time, will find that the mold incubator has a variety of small problems. For example, mold and mildew growth, air inlet all dust, and so on. So, when idling, you need to pay attention to some points. For example, before idling the equipment, remove the water from the humidifier, and allow the moisture inside the equipment to completely dissipate. Before closing the incubator door, make sure that the incubator is completely dry. The incubator can be secured using the two brake wheels on the front of the equipment once it is in place to prevent it from moving. If necessary, cover the mold incubator with a layer of film

What is the thermal insulation effect of the constant temperature drying oven of Kenton laboratory?

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In the drying process, sterilization, constant temperature storage, heat treatment, and other fields, the constant temperature drying oven is the basic supporting equipment of the laboratory and scientific research units. Kenton laboratory. Then, what is the heat preservation effect of the constant temperature drying oven of Kenton Laboratory? Among them, the GX series constant temperature drying oven adopts Pro-Insulation TM isolation and heat preservation technology. Based on the concept of effective use of heat energy, the entire inner liner, and the shell are completely isolated to avoid energy loss due to heat transfer. Adopt high-density imported insulation material to wrap the inner liner, effectively insulating and keeping heat. Good silicone door seal, isolated door hinge design, with a fastening device with the door handle to ensure a tight seal.  drying oven

What are the characteristics of DNP series of electrothermal incubator

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The electric heating incubator is usually used in the laboratories of schools and scientific research units. The actual temperature sensed by the temperature sensor in the box is converted into electrical signals. The heater is controlled by a microcomputer to reach the required temperature for bacterial culture, fermentation and constant temperature test. 1. C model or non C model non C model is equipped with LCD controller, Timing function and temperature control accuracy, power failure memory and other functions C model is equipped with digital controller. 2. Appearance features The housing is made of powder sprayed steel;two layer doors, and the inner is glass door; the integrated structure of handle instrument is adopted. 3.structure feature international brand fan, mirrored stainless steel interior, Carbon fiber electric heating film adopts advanced inner chamber preheating function. The door is made of a silica gel sealing strip, which has a lot of heat preservation effect.

Where does the water in the vacuum oven go?

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For the vacuum drying oven , people in the laboratory or scientific research units are more familiar with the working principle, but there is a little confusion is: where does the water of the vacuum drying oven go? The sealing of the vacuum drying oven is very good, the vacuum drying oven uses the vacuum pump to pump out the air, under the vacuum state, some powder, granular materials, containing low moisture, drying water will become invisible to the naked eye water vapor, if the moisture content is large, when it is gathered, the formation of condensation. Treatment of condensate. 1. use a vacuum pump. The connection of the vacuum pump does not allow outside air to enter, but it will draw off the water vapor. 2. place a desiccant at the bottom of the chamber to suck out the water produced by the material. In this case, it is best to make a drying device between the vacuum pump and the drying oven, so that the material can be well protected and the vacuum drying oven can be maximize

Is the drying oven equipped with an intelligent control system?

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Intelligent control is a new type of control research in recent years. Intelligent control is widely used in industry, agriculture, and service industry. So, will the drying oven be equipped with an intelligent control system? the answer is yes. Many products of Kenton instrument are equipped with the intelligent control system, DHG The constant temperature electric heating drying oven adopts the precise LCD microcomputer intelligent PID control technology, optional digital display, the system has the temperature control, timing, over-temperature alarm function, with RS485 microcomputer interface; while the KENTON technology GX series adopts the microcomputer PID control technology, integrated LCD lattice large-screen LCD, which can be displayed in Chinese or English, all parameters are displayed at a glance. Humanized design, fully display the status display required by customers: temperature, wind speed, operation time, operation stop. Adaptive PID degree control, precise temperatu

Automatic protection function of artificial climate chamber

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The  artificial climate chamber has power-off protection 0:close power-off protection 1: Turn on the power-off protection function. When the instrument is powered off and recovered, the program will continue to run according to the period, segment number, and time when the power is off. Low-temperature protection Temperature sensor fault alarm: the screen displays the word "abnormal temperature sensor", the compressor and heating stopped working, the alarm sound stops for one second, and the continuous sound needs to press any key to stop. Temperature upper limit alarm: when the measured temperature exceeds the set temperature by 5 degrees, the heating stops working, the alarm sound stops for one second, and the continuous sound needs to be stopped by pressing any keys. The artificial climate chamber is equipped with the full spectrum plant growth lamp by the preset control temperature, light intensity, operation cycle, and segmentation procedure, which is conducive to p

How to deal with the CO2 concentration of CO2 incubator not reaching the set value

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The co2 incubator is improved on the basis of common culture. It is mainly able to add CO2 and humidity to meet the environment required for microbial culture. It is carried out by a carbon dioxide concentration sensor. How to deal with the CO2 concentration of CO2 incubator not reaching the set value? Fault content: when the carbon dioxide incubator is ventilated, the air is opened too much. Now, no matter how big the gas is, carbon dioxide is less than 5%. 1)method: check whether the valve of the external CO2 cylinder is open and whether the pressure of the CO2 cylinder is normal (no less than 3kg) 2) method: If the filter membrane in the incubator is broken due to excessive pressure, it may be OK to change the filter membrane 3) method: Air intake control solenoid valve failure, check the fault according to the wiring diagram.

How to choose the size of humidity chamber

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For the size selection of the humidity chamber , many people do not know what size they should buy. In fact, in order to ensure that the surrounding atmosphere of the product can meet the environmental test conditions in the test specification, several points should be paid attention to when selecting the size. 1. The volume of the test object shall not exceed 20% - 35% of the space in the test chamber (working room). If the volume exceeds 35%, the testing effect will be easily affected. 2. For the products heated in the experiment, no more than 10% 3. The ratio of the windward sectional area of the test object to the working area of the constant temperature and humidity chamber in the section is not more than 35% - 50%. These points are closely related to airflow, environment, and temperature. Do not choose a constant temperature and humidity chamber which is not suitable in order to save money. humidity chamber

What do I need to be aware of when operating the clean bench?

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The clean bench is designed to protect laboratory materials, therefore, the following issues should be noted when operating the clean bench. 1. Operate the laminar flow zone, so the working position should not interfere with the normal flow of air, and the staff should avoid disturbing the airflow. (b) The movement of the person in order to avoid contamination. 2. The operator shall wear clean working clothes and wear a mask while working. 3. Use the process such as the discovery of problems should immediately cut off the power supply, report to the repair personnel to inspect and repair. Kenton laboratory JHP-series (LCD) clean workbench conforms to the human body mechanics of the front part of the 10-degree tilt design so that the operation of more Comfort. The working distinction has an open structure, and the purified air flows towards the operator, thus preventing outside airflow from mixing with the operating area. The absence of a protective flap facilitates access to

can drug stability test chamber be used as biochemical inucbator?

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recently, some customers presented a question: Now I want to use a biochemical incubator instead of a drug stability test chamber to do a long-term stability test. I wonder if it is feasible. As far as I know, biochemical incubators have a good function of temperature control and humidity control, and light, and the price is cheaper than that of the drug stability test chamber. May I ask you, will the biochemical incubator run for a long time? In fact, generally speaking, the biochemical incubator has no humidity control function, and there is no light. If you need these functions. you can take an artificial climate chamber. For the drug stability test, it is better to use the drug stability test chamber. The drug stability test chamber is suitable for drug failure evaluation, accelerated tests, and long-term tests of pharmaceutical enterprises. It is ideal for special equipment for GMP certification and drug stability tests.

What are the types of incubator control instruments?

An important part of the incubator is the control instrument. Those familiar with this product will know that there are several types of control instruments in the drying oven, and different instruments have different meanings. The control instrument is the core component of the device. The display is generally divided into an LCD screen (optional touch screen), digital (digital), and pointer. The control precision from high to low is LCD-digital-pointer. In addition to the display and control accuracy of the instrument, the precision electronic components and temperature and humidity sensors of the control panel, intelligent programs, and supporting software all determine the various functions and overall performance of the equipment. All Hengli systems are equipped with LCD screen control instruments as standard, with a control accuracy of ±0.1°C. Sensor sensitive components and key precision control components are imported. Optional multi-segment programming software is also availa

How to purify the incubator for culturing mould?

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The incubator used to cultivate mold, but now it has to cultivate another kind of mold. So, how to purify the incubator for cultivating mold? common method: Uv light irradiation, and wipe with alcohol update method: 30 ml formalin + 15 g potassium permanganate + 15 ml water per square meter space (height not more than 3 meters) The potassium permanganate solid is first wrapped with permeable paper (such as newspaper) and put into an old beaker. Then the formalin + water solution is poured into it. The person leaves immediately. The incubator is sealed for 24 hours and then ventilated and blown away. At this time, there is no need to turn on the UV light at the same time. the details: usage: 18ML/M3 humidity: 70-90% The boiling point of formaldehyde: -19.5celsius degrees In the use of the incubator , do not use corrosive solution to wipe the surface. Dry cloth or alcohol can be used to clean the incubator. If necessary, use the above method to purify mold.

what kind of humidificadtion way of humidity chamber

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Electric humidification is a humidification method to create a humidity environment through the principle of converting electric energy into heat energy. By immersing the electric heating tube in the equipment in water, the electric heating tube generates heat, so that the water boils into water vapor, thus creating a moderate humidity environment with high humidity control precision. Kenton constant temperature and humidity chamber LRH adopts this kind of humidification method. The actual temperature and humidity sensed by the temperature sensor and humidity sensor in the constant temperature and humidity box are converted into electrical signals, and the humidifier is controlled by a microcomputer to achieve the required humidity. Ultrasonic humidification is a kind of cold humidification. Water is thrown away from the water surface through the high-frequency resonance of the atomizing plate, which produces natural water mist.

Why do you need purified water for the Humidity chamber?

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humidity chamber A piece of useful advice: Humidity chamber inside the use of 10 days later, will find a sticky stuff paste on the pump inlet, also there's some black substance in there, what's going on? Here's the answer to that question. The Humidity chamber should be placed on top of the device before use, and then the water hose should be inserted into the inlet and overflow on the backside of the device (reference parts) (composition diagram), and place the water pan under the overflow pipe outlet for use. One of the points to note: fill the Humidity chamber with enough pure water. Then, why do we need pure water? If the tap water is used for a long time, the water pipes are prone to scale, and the impurities in the tap water also adsorb to the surface of the product. It can also cause the tank to be dirty and breed bacteria. Second, the water quality will directly or indirectly affect the test, but also affect the equipment will use life. Humidity chamber is st

101 Series drying oven instruction

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101 series constant temperature drying oven , there are pointer types and digital display types. now let introduce the digital display drying oven. drying oven component parts: The heating element of the drying oven is at the bottom, and the air blower is on the left side. the air flows into the chamber through the air inlet at the bottom of the chamber, and then discharged from the vent hole on the top of the chamber (an exhaust hole). Glass fiber is used as a thermal insulation material between the working room and the shell. In order to observe, the door part is made of a toughened glass observation window. parameter: Operating temperature ° C: room temperature + 5 ~ 300; fluctuation ° C: ± 1%; working voltage AC (V): 220-380v. Model 101-4 / 101-5 uses 380V three-phase four wire 4mm2 power line. usage: put the sample on the shelf, close the door, loosen the exhaust cover on the top of the chamber, connect the power supply, turn on the electric switch, and blast switch. When

Does the temperature difference in the incubator affect the sample

Some customers will have a question when choosing incubators . Will the temperature difference of incubators affect the samples? Usually, the temperature difference of one or two degrees may have little effect on the sample, but if the temperature difference is too large, it must have an impact. For example, when the algae are cultured in constant temperature and humidity incubator , most of the freshwater algae are at 20-25 ° and higher than 30 ° and some cyanobacteria will die if they can't persist for 24 hours. The temperature fluctuation range of incubator is one of the standards to measure the technical quality of a product. Obviously, the smaller the fluctuation range is, the smaller the impact on the sample is. The internal use of thermal insulation materials is also a standard to measure the quality of products. Generally speaking, imported environmental protection materials have a better insulation effect. In the selection of incubators, these are issues to be noted.

Does the environment affect the laminar flow hood?

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It is necessary to pay attention to the installation and use of the laminar flow hood . In order to minimize the various variables that can affect the scientific research results, including environmental factors, it also has an impact on the laminar flow hood. 1. Dust in the environment In order to increase the service life of the filter, the product should be installed in a GMP workshop or laboratory, and the filter replacement frequency is low. If it is just an ordinary laboratory, the filter should be replaced every two years. It is strictly forbidden to install in the working area that produces high-speed dust particles to ensure its effect. 2. Airflow in the environment The normal flow in the purification area is an important factor to ensure the purification effect. In places susceptible to external airflow, it cannot be installed. Tips: the choice of the appropriate environment of laminar flow hood is will directly affect the use effect and service life. Every day must be cl

What do I need to do to use the constant temperature drying oven for the first time?

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When using the constant temperature drying oven for the first time, many people will put the sample directly into the oven, but this is the wrong way to operate. As there will be a slight smoking process during the first heating, it is recommended not to put in the sample before using it officially. Otherwise, the sample may be contaminated or damaged if you are not careful the first time you use it. Correct way: close the door, unscrew the oven top exhaust cover, open the electric switch, blower switch, indicator light, put the heating switch in " On "Slow", set the temperature controller at 100℃, when the temperature reaches 100℃, the temperature controller will automatically keep constant temperature, after that the power can be cut off. Open the door of the incubator to dissipate heat and smoke. In fact, the constant temperature drying oven in the factory, more or less in the internal there will be some residual substances. The first time you use it, you have t

What's the difference between biochemical incubator and mould incubator

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In the laboratory or scientific research institute, many people will confuse about the biochemical incubator and the mold incubator, what is their difference. Biochemical incubator : also known as BOD incubator, is common laboratory equipment integrating heating and cooling functions. Mould incubator : high precision laboratory equipment with heating, cooling, and disinfection functions. The biggest difference between the both is that the mold incubator has one more disinfection function than the biochemical incubator, which is usually equipped with a UV sterilization lamp. There are also some mold incubators in constant temperature, sterilization on the basis of increased humidity control (some mold incubators without humidity). Therefore, when the sterilization lamp is turned off in the mold incubator, it can be used as a biochemical incubator, or taken as constant temperature and humidity incubator with humidity. The functions are also relatively complete.