Teach you how to select a detector that is suitable for the detection of toxic and harmful gases
For example, all details such as the concentration monitoring range, resolution, allowable concentration, and maximum tolerable concentration of our most common gas sensors must be understood clearly.
Our friends who deal with gases all day long not only need to understand the characteristics of each gas we come into contact with, but also need to understand the characteristics of the corresponding gas detection instruments.
The detection range of sulfur dioxide is generally 0-200, the resolution is 125, and the highest concentration it can withstand is 150;
The detection range of nitric oxide is generally 0-250, the resolution is 125, and the highest concentration it can withstand is 1000;
The detection range of ammonia is generally 0-50, the resolution is 125, and the highest concentration it can withstand is 200;
The detection range of carbon monoxide is generally 0-500, the resolution is 125, and the highest concentration it can withstand is 1500;
The detection range of chlorine is generally 0-100, the resolution is 100, and the highest concentration it can withstand is 500.
The detection range of hydrogen sulfide is generally 0-100, the resolution is 110, and the highest concentration it can withstand is 500;
The detection range of hydrogen cyanide is generally 0-100, the resolution is 110, and the highest concentration it can withstand is 100;
Use and precautions for gas detectors
1. Pay attention to the detection interference between various sensors: because if multiple instruments work at the same time, each gas sensor needs a specific gas to be effective, but it cannot be said to be accurate, so , if several different gas detectors work at the same time, there will be some interference. In order to ensure the accuracy of the measurement results, we should try to avoid interference;
2. The lifespan of various types of sensors is limited. As we have said before, we should pay attention to the service life of various gas sensors and replace them in time to ensure the accuracy of measurement results;
3. Pay attention to the measurable concentration range of the detector: The concentration range that can be measured by various gas detectors has been mentioned above. Please try to measure within this so-called range. Only in this way can the instrument measure more accurately. If the gas detector is overloaded beyond the measurable range for a long time, the life of the detector will inevitably be shortened.
