under normal circumstances, when human beings breathe normally, the oxygen content in the air is 20.93 (volume percentage), but if it is in the working environment, if there is oxygen enrichment or hypoxia, it is not suitable for construction work. This is because the oxygen content in the confined space is greater than 19.5 and less than 22%, both oxygen-rich and oxygen-deficient environments are unsafe, otherwise it will cause certain harm to the human body. Therefore, when we work in a confined space, we need to use an oxygen detector to detect the oxygen content in the working environment. Do you know the standard detection range of oxygen detector ? The following is a brief introduction by yi yun Tian:

oxygen detector standard detection range:

1, 0-30% vol is used for human body safety testing to prevent personnel from hypoxia and use a very common measurement range.

2, 0-25% vol are used for industrial boiler exhaust gas combustion emission, combustion efficiency index detection, monitoring oxygen content index in combustion furnace, generally this application requires oxygen detector based on high temperature zirconia principle.

3, 0-100% vol oxygen concentrator purity detection, oxygen concentration detection in the medical industry, these are the measurement ranges of oxygen detectors that require high concentrations.

4, 0-5% vol0-5 vol this measurement range is mostly used for industrial pipeline waste gas treatment, in order to control the oxygen content not to exceed the standard, otherwise it is easy to lead to explosion accidents caused by the catalytic effect of oxygen, so the control of oxygen content is very important.

5, 0-10000ppm/0-1000ppm0-10000ppm, which belongs to the field of trace oxygen detection, is mainly used in equipment vacuuming, or high-risk industrial fields, and has extremely high standards of oxygen control.

6, 0-1000ppm/0-100ppm and this extremely demanding oxygen content monitoring standard have extremely high accuracy for the overall oxygen detector.

to sum up, we can see that the measurement standard value of the oxygen detector is 20.9%VOL, and the low alarm value is generally set at 19.5%VOL, so when you use the oxygen detector, please set the detection range according to relevant regulations.