我应该多久更换一次样品硫化氢分析仪系统过滤器？ 过滤器应根据需要进行更换。频率取决于气体中的液体含量和微粒。液体和微粒的体积越大，需要更换越频繁。校准分析仪时，应检查过滤器。
The Filter should be changed as required. The frequency is dependent on the liquid content and particulates in the gas. A higher volume of a liquids and particulates will require more frequent changes. Filters should be checked when analyzer is calibrated.