I believe everyone knows that the verification of the indication error of the combustible gas alarm is a key link to ensure its measurement accuracy and reliability. In the verification process, we need to pay attention to the error range of the indication value and maintain the correct verification steps, because it will be directly related to the accuracy of the combustible gas alarm to a certain extent. Do you know the verification procedures for indication error of combustible gas alarm ? The following is an introduction by yi yun tian electronic editor:

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1. According to the requirements of the instructions of the combustible gas alarm, use a specific flow rate to pass the zero gas to adjust the zero point. When adjusting the zero point, ensure that the power supply voltage meets the power supply requirements of the instrument to ensure the stability of the electrical zero point. This step is very important, because the accuracy of the zero point directly affects the verification result of the indication error.

2. In the process of entering the adjustment stage of the calibration value, fine adjustments need to be made according to different potentiometers on the combustible gas alarm to achieve accurate calibration values. Sometimes it may be necessary to repeatedly adjust 2 or 3 times to obtain satisfactory results. These 1 steps require a high degree of care and patience to ensure the accuracy of the calibration values.

3. according to the requirements of combustible gas alarm verification regulations, standard gases with concentrations of about 10% LEL, 40% LEL and 60% LEL are respectively introduced. While recording the stable indication value of the combustible gas alarm, the absolute value of the propane detection is determined by calculation. In this process, special attention should be paid to the stability of the indication to ensure the reliability of the results.

4. in order to obtain more accurate data during the verification of combustible gas alarm, low-concentration gas should be introduced first, and then high-concentration gas should be introduced gradually. This order can ensure the stability and reliability of the verification data.

5. For standard gases with different concentrations, it is necessary to ensure stable and uniform flow during verification and ventilation. This is a key step in ensuring accurate and reliable calibration values. Therefore, special attention should be paid to the flow control of the gas when the combustible gas alarm is checked to obtain a good verification effect.

To sum up, this is the verification procedure for the indication error of combustible gas alarm.The verification of the indication error of the combustible gas alarm is a very important work. We need to adopt a scientific method and a rigorous attitude to carry out periodic verification and maintenance. This not only ensures the accuracy and reliability of the combustible gas alarm, but also provides a strong guarantee for our safety.