四合一气体检测仪后续使用中需要检定的项目有哪些?
对于四合一气体检测仪而言,在使用了一段时间之后,都需要对其进行定期检定,检定时我们可以参照对应的单一气体检测仪的检定规程国家标准来执行,具体就是分别参照可燃气体Ex、硫化氢H2S、氧气O2和一氧化碳CO的气体检测仪检定规程。尤其是为了确保后续的使用,我们还需要做好其他项目的检定工作。那么您知道四合一气体检测仪后续使用中需要检定的项目有哪些吗?下面逸云天小编为您介绍:

四合一气体检测仪在后续使用过程中需要检定的项目分别如下:
1、可燃气体Ex:报警功能及报警动作值的检查、示值误差、响应时间、重复性。
2、硫化氢H2S:报警功能、示值误差、重复性、响应时间。
3、氧气O2:示值误差、重复性、响应时间。
4、一氧化碳CO:报警浓度值、报警功能、示值误差、重复性、响应时间。
除了上述的四合一气体检测仪在使用过程中的主要检定项目之外,还应对基础的外观与结构、标志和标识等进行检查,确保各项目都是完好的并清晰易于辨识。在进行四合一气体检测仪检定之前,应至少准备好气体标准物质、流量控制器、零点气体、秒表、减压阀和气路等检定时需要用到的设备。这样,才可以更好地确保四合一气体检测仪后续工作的正常运行。
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