西門子 測量介質流速、儀表量程與口徑 測量一般的介質時，超聲波流量計的滿度 流量可以在測量介質流速0.5—12m/s范圍內 選用，范圍比較寬。選擇儀表規格(口徑)不一 定與工藝管道相同，應視測量流量范圍是否 在流速范圍內確定，即當管道流速偏低，不能滿足流量儀表要求時或者在此流速下測量準 確度不能保證時，需要縮小儀表口徑，從而提 高管內流速，得到滿意測量結果。

    西門子超聲波流量計北京*中   1、西門子 精密功能檢查
    西門子 精度等級和功能根據測量要求和使用場合選擇儀表精 度等級，做到經濟合算。比如用于貿易結算、產品交接和能源計量的場合，應該選擇精度等級高些，如1.0級、0.5級，或者更高等級; 用于過程控制的場合，根據控制要求選擇不 同精度等級;有些僅僅是檢測一下過程流量，無需做精確控制和計量的場合，可以選擇精度等級稍低的，如1.5級、2.5級，甚至 4.0級，這時可以選用價格低廉的插入式超聲波流量計。
    2、西門子 可測量的介質
    西門子 測量介質流速、儀表量程與口徑 測量一般的介質時，超聲波流量計的滿度 流量可以在測量介質流速0.5—12m/s范圍內 選用，范圍比較寬。選擇儀表規格(口徑)不一 定與工藝管道相同，應視測量流量范圍是否 在流速范圍內確定，即當管道流速偏低，不能滿足流量儀表要求時或者在此流速下測量準 確度不能保證時，需要縮小儀表口徑，從而提 高管內流速，得到滿意測量結果。
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    西門子超聲波流量計北京*中
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