As an important tool for monitoring the oxygen concentration in the environment, the oxygen detector has high-definition liquid crystal display and functions such as sound and light alarm prompts, which can ensure that the oxygen content is detected in a harsh working environment and prompt the operator to prevent it in time. Its accuracy and reliability are essential to ensure personnel safety and production safety. However, during the calibration of the oxygen detector , some common problems may be encountered. If these problems are not solved in time, they will directly affect the accuracy of the test results. Do you know what common problems may be encountered during the calibration of the oxygen detector? The following is an introduction by Yiyuntian Electronics:

1. calibration environment unstable

Problem performance:

During the calibration process, the temperature, humidity, air pressure and other conditions of the calibration environment change dramatically, resulting in inaccurate calibration results.

:

Select a relatively stable temperature and humidity calibration environment with good ventilation. Before calibration, use instruments such as temperature and humidity meter to monitor the calibration environment to ensure that the environmental conditions meet the calibration requirements. If possible, use special equipment such as a calibration box to create a stable calibration environment.

2. standard gas improper selection

Problem:

The standard gas concentration used is inaccurate or outdated, resulting in large deviations in calibration results.

:

Select a standard gas that meets national or industry standards and has accurate concentrations. Before use, check the expiration date and concentration label of the standard gas to ensure that the gas is within the expiration date and the concentration is accurate. For the standard gas that has not been used for a long time, the concentration should be verified again or replaced with new gas.

3. gas flow improperly controlled