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Principle and Application of Sound Level Meter
Time of Update: 2022-05-05
Sound level meter is the most basic instrument for measuring noise.
The sound level meter adopts digital detection technology, which greatly improves the stability and reliability of the instrument .
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Common knowledge of gas pretreatment system in Dongri Yingneng gas analysis system
Time of Update: 2022-05-05
The reliability and safety of the long-term continuous operation of the online analysis system, as well as the near maintenance-free ease of maintenance, this kind of integrity guarantee for engineering applications completely depends on the specialized and targeted design of the technical specifications of the sample gas processing system .
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Principle and structural characteristics of microwave vacuum drying oven
Time of Update: 2022-05-05
Infrared temperature measurement, digital timing, adjustable power, intelligent control, simple operation, uniform heating, 50% energy saving than conventional process equipment, in addition, it can also be used for drying, dehydration and concentration of many oxidizable materials .
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What are the precautions for high and low temperature circulation devices in pharmaceutical and chemical industries?
Time of Update: 2022-05-05
Therefore, the requirements for high and low temperature cycle devices in pharmaceutical and chemical industries are fast response speed, fast temperature switching and fast target temperature realization .
The liquid circulation of the pharmaceutical and chemical high and low temperature circulation device is closed, and the system is equipped with an expansion tank .
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Talk about the parameters and application of the microbial detection filter cup
Time of Update: 2022-05-05
The effective filtration area of the filter membrane is large, the colonies are more dispersed, and the counting is more convenient; 4.
After filtration, no water stains remain on the edge; 5.
Applicable filter membrane diameter: 47mm 2.
Applicable filter membrane pore size: 0.
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Solution to the uneven temperature control of small high and low temperature cycle test device
Time of Update: 2022-05-05
4. The sealing of the box is not good, such as air leakage, which affects the uniform temperature field during work .
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Can you drink purified water?
Time of Update: 2022-05-05
In the medical industry, we often use purified water equipment.
It is a water treatment equipment used to prepare purified water.
As can be seen from the above content, purified water only contains water molecules and does not contain any other substances.
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Talk about the precautions for the use of high-efficiency coating machine
Time of Update: 2022-05-05
The following editor briefly introduces the precautions for the use of the high-efficiency coating machine, as follows: Each time adding liquid or removing powder, it should be distributed evenly; after each addition of liquid and distribution, it should be fully dried before adding again.
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Advantages and characteristics of the use of explosion-proof high and low temperature circulation devices in pharmaceutical and chemical industries
Time of Update: 2022-05-05
1. The explosion-proof high and low temperature circulation device of pharmaceutical and chemical industry can realize the constant temperature of materials.
Due to the refrigeration and heating mode adopted by the explosion-proof high and low temperature circulation device in the pharmaceutical chemical industry, the temperature control range is very wide, from -120℃ to 350℃.
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What are the characteristics of vibrating fluidized bed dryer
Time of Update: 2022-05-05
The working principle of the vibrating fluidized bed dryer: The material enters the machine from the feeding port.
After the hot air passes through the fluidized bed and exchanges heat with the wet material, the wet The air is discharged from the air outlet after being dedusted by the cyclone separator, and the dry material is discharged from the discharge outlet .
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Pressure Protection Instructions for Small Refrigeration and Heating Cycle Integrated Units
Time of Update: 2022-05-05
6MPa; the medium pressure valve of the low pressure stage of the two-stage compressor should automatically open when the pressure difference between the suction and exhaust sides reaches 0.
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Small knowledge on the use and maintenance of laboratory high and low temperature circulation devices
Time of Update: 2022-05-05
3. The power switch of the laboratory high and low temperature cycle device needs a special switch.
Because groundwater contains many minerals, it is easy to produce scale, which affects the cooling effect and reduces the life of the machine .
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Knowledge of the use of explosion-proof small high and low temperature cycle devices
Time of Update: 2022-05-05
The main purpose of the explosion-proof small high and low temperature circulation device is to use in conjunction with the reactor, which can provide heat and cold sources.
The explosion-proof small high and low temperature circulation device is divided into 2 systems: refrigeration system and heating system.
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What are the dangers of not replacing the filter element in the purified water equipment?
Time of Update: 2022-05-05
How much pressure the filter element of reverse osmosis purified water equipment can withstand mainly depends on the filtering material and the thickness of the porous plate that plays a protective role or the pressure bearing capacity of the spring .
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The advantages and scope of application of the automatic multi-head liquid filling machine
Time of Update: 2022-05-05
Such as hand soap, care solution, oral solution, hair care solution, hand soap, skin care solution, disinfectant, liquid foundation, antifreeze, shampoo, eye wash, nutrient solution, injection, pesticide, medicine, cleaning, bathing Liquid filling machine for dew, perfume, edible oil, lubricating oil and special industries .
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Application and operation method of Escherichia coli tube centrifuge
Time of Update: 2022-05-05
The important steps of extracting biochemical substances from the fermentation broth or cell culture broth of Escherichia coli genetically engineered bacteria are pretreatment and solid-liquid separation .
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How to avoid mistakes in the operation of the laboratory explosion-proof high and low temperature cycle integrated machine
Time of Update: 2022-05-05
8. Wipe each interface with a soft cloth (can be replaced with a napkin), and then apply a little vacuum grease .
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Small high and low temperature cycle integrated machine maintenance tips
Time of Update: 2022-05-05
1. The small high and low temperature cycle integrated machine can be used for at least a certain period of time before it can be powered on.
The maintenance and maintenance of the small integrated high and low temperature cycle machine is particularly important for prolonging its life and normal use.
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Determinants of the Duration of the Main Drying Process of a Four Ring Freeze Dryer
Time of Update: 2022-05-05
During sublimation, the dissolved substances dissolved in water are precipitated, which avoids the phenomenon of surface hardening caused by the precipitation of inorganic salts carried by the migration of moisture inside the material to the surface in the general drying method .
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Daily use of maintenance knowledge of small laboratory high and low temperature circulation devices
Time of Update: 2022-05-05
3. Open the liquid filling hole of the high and low temperature tank, add the medium into the machine, turn on the circulation switch of the machine, and let the liquid circulate in the whole system .
