求翻译：当现场干扰严重，并且6.1表中各种处理方法均无效时，请另购本公司的EMCfilter电源净化低通滤波器串接于仪表输入电源入口处的继电器引线出口处。是什么意思？

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When the scene in the table 6.1 interfere with serious, and various treatment methods shall be null and void when the company, please purchase another EMCfilter power purification of low-pass filter Series connected instrument input power entrance leads exit relays.

When the scene disturbance is serious, when in 6.1 tables each processing method invalid, please in addition buy this company the EMCfilter power source to purify the low pass filter series connection in the measuring appliance input power source entrance relay lead wire exit.

When the field interference serious and 6.1 various treatment methods in the table is not valid, please purchase our EMCfilter power cleaning low pass filter threads on instrument input power relay outlet of the leader at the entrance.

正在翻译，请等待...