A.監(jiān)測裝置的接入不應(yīng)改變被監(jiān)測設(shè)備的完整性和正常運行 B.監(jiān)測裝置(傳感器)宜就近安裝 C.監(jiān)測裝置外接的電源電纜與信號電纜應(yīng)采用必要的防護(hù)措施 D.監(jiān)測裝置應(yīng)有明顯的接地點并有效接地
A.10uA~10mA B.10uA~50mA C.0uA~10mA D.0uA~50mA
A.10uA~50mA B.100uA~50mA C.100uA~100mA D.100uA~100mA