As we all know, oxygen is an important gas for our human survival. Whether the oxygen content in the air is within a safe range is related to the life safety of workers and should not be treated carelessly. Therefore, for many places, it is necessary to install or prepare an oxygen detector to detect the oxygen concentration, so as to prevent the working environment from being anoxic and oxygen-rich. However, although many places are equipped with instruments, they are often inaccurate in detection, so what is the problem that oxygen detector is inaccurate in detection? The following is a brief introduction by yi yun Tian:

analysis of the causes of inaccurate detection of oxygen detector:

1. Keep the calibration environment of the oxygen detector stable and avoid the influence of drastic changes in temperature, humidity, air pressure, wind speed, etc.

2. the calibration of the oxygen detector adopts the standard gas sample comparison calibration method, and the error of each point shall not exceed the specified value of the verification regulation.

3. the flow rate of standard gas should be strictly in accordance with the requirements of the instructions. too large or too small flow rate will affect the detection results and cause measurement errors.

4. if the unused enterprise detector is placed for a long time, 3% standard gas should be introduced to activate its catalytic element, and then 1% standard gas should be introduced for adjustment. otherwise, the error of each point is not within the qualified range, resulting in calibration failure.

5. The standard gas mask of the oxygen detector itself should be selected. If an unreasonable standard gas mask is selected, the value will be unstable and inaccurate.

to sum up, it is the analysis of the reasons for the inaccurate detection of the oxygen detector. in fact, as far as normal conditions are concerned, most of the reasons for the inaccurate detection of the oxygen detector are mainly the failure to strictly check whether the instrument is in normal working condition, so we must remember to standardize the detection before using it, in order to get accurate results.