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使用壓力計時應注意哪些問題?
發布日期:2012-08-21 瀏覽次數:2679

    1)取壓點必須具有代表性,不得受氣流速度的影響。
    2)聯結導管不應太細,內徑以10-12毫米為宜,應保證不漏、不堵,測氣壓時管內不應有水。
    3)壓力計必須按規定安裝,如重力式壓力計必須放置水平。
    4)在測量壓力波動較大的壓力時,為了便于讀數,可在導管
    5)在測量具有腐蝕性或粘度較大的介質(如重油)時應在儀表前裝置隔離容器,裝以隔離液,避免被測介質流入彈簧管內。
    6)在測量壓差時,應在兩個引壓管之間裝置平衡閥,使二個引壓管相通,接入壓差后再關閉平衡閥,以免將所充液體吹到導管中。
 

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