In the current field of industrial production and safety monitoring, the oxygen detector is the 1 important safety equipment. In order to ensure that it can accurately measure the oxygen concentration in the environment and issue an alarm in time, regular calibration is essential. Oxygen detectors are calibrated to ensure that the instrument can accurately measure oxygen concentration under different environmental conditions. These standards not only specify the calibration methods and procedures, but also specify the key elements such as the standard gas, equipment and calibration cycle required for calibration. Following the calibration standard can effectively avoid measurement errors, improve the accuracy and reliability of monitoring data, and provide a strong guarantee for safe production. do you know what the calibration standard of the oxygen detector is? The following is a brief introduction to yiyuntian:

Content of the calibration standard for oxygen detector:

1. Calibration environment:

Calibration should be performed under stable environmental conditions to avoid drastic changes in temperature, humidity, and air pressure.The calibration environment should be well ventilated to avoid the presence of high concentrations of oxygen or other interfering gases.

2, calibration equipment:

prepare zero gas (usually high purity nitrogen gas with a purity of about 99.999) and range standard oxygen (usually 20%, 50%, 80%, etc. of full scale). Use flowmeter, four-way valve, gas pipeline, gas pressure reducing valve and other equipment to ensure the stability and accuracy of gas flow.

3. calibration steps:

according to the instructions for use of the oxygen detector, and wait for the instrument to display a stable value, the zero calibration is performed.Pass in the range standard oxygen in sequence, wait for the displayed value to be stable, and compare the displayed value with the nominal value of the standard gas to see if it is within the error range.

If it is outside the error range, select user calibration according to the instrument menu, enter the calibration interface, select span calibration, and modify the displayed value to match the nominal value of standard gas. After the calibration is completed, the zero point gas is introduced again for verification to ensure that the calibration is correct.

4. Calibration cycle:

In general, the calibration cycle of the oxygen detector is 1 year. During the two periodic tests, if the sensor is replaced or the detection data of the oxygen detector is doubtful, the calibration should be carried out again. For oxygen detectors that have been idle for a long time, 3% standard gas should be introduced to activate the catalytic element before starting, and then 1% standard oxygen should be introduced for calibration.

5. Logging and Reporting:

Calibration steps, calibration results, calibration dates and other information shall be recorded in detail during calibration. After the calibration is completed, a calibration report should be prepared, summarizing the calibration results, and attaching calibration data and charts.

In summary, we can see that the calibration standard of the oxygen detector is to ensure its An important guarantee for accuracy and reliability.By following calibration standards, we can effectively avoid measurement errors and improve the accuracy and reliability of monitoring data. In the current field of industrial production and safety monitoring, we should attach great importance to the calibration of the oxygen detector to ensure that it can accurately measure the oxygen concentration in the environment and provide a strong guarantee for safe production.