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气体检测仪 气体报警器 气体探头 气体传感器 气体传感器模组 无人机大气监测系统 气体报警控制主机 Keywords: gas detector gas alarm gas probe gas sensor gas sensor module drone atmospheric monitoring system gas alarm control host

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TVOC Detector Manufacturer Tips: How to Face TVOC Pollution

The TVOC detector is particularly suitable for detecting low concentrations of volatile organic compounds. If the concentration of the gas to be measured in the measured gas is too high, the cycle of continuous ion recombination → ionization will occur when these gas molecules are ionized by the ultraviolet light. Since the TVOC detector is non-characteristic, its detection result is the sum of the signals of all the monitorable substances in the measured environment. At the same time, the ion potentials of different gases are different, and TVOC for different gases at the same concentration ...

What is East Sundial?

No matter what kind of gas detector, it will have an alarm function, mainly to allow the gas detector to issue an alarm when the instrument detects that the target gas concentration in the environment has reached a certain concentration. The accuracy of the test results of an instrument is an important condition for the correct alarm to be issued, and the calibration of the gas detector is an important guarantee for this condition. The calibration of a gas detector means that the instrument is placed in a test gas of a corresponding known concentration, and the test results of the gas detector are compared ...

Selection and use of harmful gas detectors

1 Reference factors for selecting a gas detector

1.1 Confirm the type and concentration range of the gas to be tested: The type of gas encountered in each production department is different. When selecting a gas detector, all possible situations must be considered. If methane and other less toxic alkanes are predominant, the LEL detector is undoubtedly the most suitable. This is not only because the principle of the LEL detector is simple and widely used, but it also has the characteristics of convenient maintenance and calibration. If there are toxic gases such as carbon monoxide and hydrogen sulfide, a specific gas detector must be selected first to ensure the safety of workers.





What are the toxic and harmful gases in the piggery

The composition of the atmosphere outside the piggery is relatively stable. Due to the respiration and excretion of pigs and the decomposition of feed and feces in the piggery, on the one hand, O2 in the air is reduced, carbon dioxide is increased, and NH3, H2S methane, etc. are also harmful. gas. 发生明显的下降。 The dirty air in the piggery indicates that the concentration of harmful gases has increased greatly, which will seriously affect the health of the pigs, and the production performance will also drop significantly.

Principles and hazards of dust explosion

热传导 和火焰辐射的方式传给附近悬浮的或被吹扬起来的粉尘,这些粉尘受热汽化后使燃烧循环地进行下去。 The explosion of dust can be considered to be formed by the following three steps: the first step is the rapid drying of the suspended dust or gasification under the action of a heat source to produce a combustible gas; the second step is the combustion of the combustible gas and air; The third step is the heat emitted by the combustion of the dust, which is transferred to the nearby suspended or blown dust in the form of heat conduction and flame radiation. These dusts are heated and vaporized to make the combustion continue. As each cycle progresses one by one, its reaction speed gradually accelerates, and through fierce combustion, it finally forms an explosion. 爆炸反应 以及爆炸火焰速度、爆炸波速度、爆炸压力等将持续加快和升高,并呈跳跃式的发展。 This explosion reaction , explosion flame speed, explosion wave speed, explosion pressure, etc. will continue to accelerate and increase, and it will develop in a leap-forward manner.

How can I be considered to be using the gas detector correctly?

How can I be considered to be using the gas detector correctly? Xiaobian will tell you about the use of gas detectors. First, understand your needs When choosing a gas detector, what gas must be detected first? In what environment is it used? Portable or stationary? And other accompanying features. These reasons usually have to be considered. Otherwise, it will appear that I originally planned to buy an oxygen detector, and I bought an ozone detector, which caused a big oolong, no ...

How are gas detectors classified?

I. Classification according to the use method 1. Portable harmful gas detector instruments Assemble sensors, measuring circuits, displays, alarms, rechargeable batteries, suction pumps, etc. in a single housing, becoming an integrated instrument, compact and lightweight, easy to carry, pump suction Sampling, can be detected anytime, anywhere. Pocket instrument is a kind of portable instrument. Generally, there is no suction pump diffusion sampling. It is powered by dry batteries and has a small body. 2.Fixed harmful gas detector ...

What is VOC and its harm to human body

In the atmosphere. At this stage, its broader applications include petrochemicals, printing, artificial leather and electronic components, paint and medicine. What is the damage of VOC? In view of the nature of chemical substances, in the fields of industrial production and the like, the primary solvents commonly used include aliphatic compounds, halogenated hydrocarbons and aromatic compounds. If these organic solvents are volatilized into the atmospheric environment, they are not absorbed by the skin, and can also enter the human body through the respiratory system, forming a slow ...

Gas Detector Series: How to Maintain a Fixed Gas Detector

Gas detectors in the right selection, standard installation, and normal operation do not mean the end. As a measuring instrument, its regular maintenance and calibration is the last step to ensure safety on site. This problem will cause routine maintenance of the gas detector. 1 Routine Maintenance of Gas Detector The operation, calibration and other maintenance of the gas detector should be performed by personnel with relevant qualifications or professional training. In order to ensure the accuracy and sensitivity of the test, it is necessary to periodically calibrate the gas ...

How do I install a gas detector? What most construction workers don't know

How to choose the installation location? Where should the gas detector be installed? We need to know the distribution of field conditions and where this gas is generated, such as pipe joints, valves, material locations, and airflow. These are things we need to consider, not just finding a place to install them, otherwise we will not be safe. How long can your gas detector detect the distance? A: Users often ask this question. They think gas detectors can detect ...
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