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電磁流量計在安裝和使用過程中常見的問題

發布日期:2022-07-14 點擊率:33

  a.流量計最好垂直安裝,使介質自下而上流經儀表,如現場情況不允許垂直安裝時,也可以水平安裝,但應保證測量管中充滿液體;

  b.安裝時應確保被測液體中不會分離出氣體,流量計應安裝在閥前,因為閥的降壓作用可能使管道中產生氣泡;

  c.流量計的安裝位置應避免強烈振動、強干擾源以及一切磁源(如大功率電機、變壓器等);

  d.流量計安裝時必須接地,因儀表信號較弱,外界略有干擾就會影響測量精度,因此變送器外殼、屏蔽線、測量管及變送器兩端管道都要接地,并設置單獨的接地點;

  e.安裝時前、后直管段如有縮管將影響儀表的測量精度;

  f.安裝完畢初次使用時一定要將管內徑設置準確;

  g.流量計使用時不能是負壓狀態,因為負壓時測量管的襯里容易剝落。


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