gas concentration measurement

In many industries, it is necessary to detect the concentration of various gases. In enterprise production, it is necessary to know the change of gas concentration in the production process, and in enterprise safety, it is necessary to know the existence and concentration of various toxic gases, and in various safety protection, it is also necessary to detect the concentration of oxygen and possible toxic gases in closed spaces. There are also many enterprises that use compressed air and also need to detect the purity of more compressed air accordingly. Let’s take you to know today.

First of all, at present, there are two mainstream ways to detect gas concentration in the market, one is to use a gas detection tube, and the other is to use a gas detector. The results detected by both methods are safe and effective, and they are also very convenient to use. The gas concentration detected by the gas detector is mainly used for occasional or short-term detection, and sometimes it is used for gases or ranges that cannot be detected by the gas detector. For example, if the maximum detection range of the hydrogen sulfide gas detector is 500ppm or 1000ppm, the hydrogen sulfide detector cannot detect the hydrogen sulfide with a concentration of 4000ppm, so it is necessary to use the hydrogen sulfide detector to detect it.

The gas detector is mainly used to detect a certain gas frequently, or to monitor the concentration change of a certain gas for a long time. The gas detector is mainly used for safety protection, because it also has an alarm function, which is mainly used to detect the concentration of various toxic gases in the workplace. Once the concentration exceeds the alarm value, the gas detector will send out various alarm signals to remind us to take corresponding protective measures.

We humans need to detect the concentration of various gases in a long time, but at that time, science and technology were not advanced enough, and we could only rely on ordinary means. For example, if we need to know the oxygen concentration in a closed space, we will use candles or flames to detect it. If the flame goes out, it means that the oxygen concentration is very low, or we will use canaries to detect the gas concentration in the mine. In the mine, even if there is an extremely small amount of gas, canaries will stop singing. When the gas content exceeds a certain limit, although people outside are unaware of it, the canary has already died of poison, so that we can take corresponding protective measures in time.