What is the measuring range of the oxygen detector?
Maybe you all know that one of the common purposes of oxygen detector is to test the safety of human body for hypoxia. Its measuring range is 0-30%vol measurement range. Because human body safety requires that the oxygen cannot be lower than 19.5%vol, an alarm must be issued. , you must be reminded if the oxygen-enriched concentration exceeds 23%vol, because oxygen-enriched oxygen can also cause the human body not to function properly. Therefore, the commonly used measuring range is 0-30%vol, and some also use the range of 0-25%vol. In fact, they are all the same, because the internal sensors of the oxygen detector all have the same range. The measurement range you choose is 0-25% or 0-30%vol, the accuracy is the same. It is recommended to choose 0-30%vol directly. Of course, in addition to the oxygen hypoxia reminder function that is commonly used to measure human safety mentioned above, there are many other uses that also require oxygen detection. The main special purposes include the following two aspects:
1. Trace oxygen testing environmental conditions. Many trace oxygen content is detected in high-concentration gases. For example, trace oxygen is detected in pure hydrogen and trace oxygen is detected in pure nitrogen. These are all trace oxygen detectors. The range is generally 0-10000ppm. Within the volume ratio concentration range of 1%vol.
2. In applications where high-purity oxygen concentration is detected, for example, some industrial control conditions require detection of oxygen purity, or detection of oxygen concentration produced by an oxygen generator. For such applications, the oxygen content is relatively high, so it is recommended to choose 0-100%vol. measuring range
Based on the above industrial control applications, the measurement range of oxygen detectors is mainly divided into three categories:
1) Normal human body safety and hypoxia prevention range concentration use: 0-30%vol range;
2) Trace oxygen detection uses: 0-10000ppm;
3) High concentration measurement purity of oxygen content: 0-100%vol.
The above three standard ranges are the common oxygen detector ranges.
