浅析NO<sub>X</sub>自动监测仪光电倍增管输出值偏小、自动零点偏移过大的问题及解决方法

浅析NO_X自动监测仪光电倍增管输出值偏小、自动零点偏移过大的问题及解决方法

摘要: 对NO_X自动监测仪校准时发现光电倍增管输出值偏小、自动零点偏移过大的问题,根据NO_X自动监测仪的工作原理和相关知识分析问题并予以排除解决。提出建议:在环境空气质量相对较差的子站点,日常的维护工作必须加强检查仪器的频度,对于一些易坏的耗材和部件需要多检查,争取早发现问题早解决问题。

Abstract: By calibrating the NO_X automatic monitor,the output value of photomultiplier tube was too small and the automatic zero offset was too large. The problem was solved according to the working principle and related knowledge of the NO_X automatic monitor. Some useful suggestions were put forward for future instrument maintenance.