西門子 測(cè)量介質(zhì)流速、儀表量程與口徑 測(cè)量一般的介質(zhì)時(shí)，超聲波流量計(jì)的滿度 流量可以在測(cè)量介質(zhì)流速0.5—12m/s范圍內(nèi) 選用，范圍比較寬。選擇儀表規(guī)格(口徑)不一 定與工藝管道相同，應(yīng)視測(cè)量流量范圍是否 在流速范圍內(nèi)確定，即當(dāng)管道流速偏低，不能滿足流量?jī)x表要求時(shí)或者在此流速下測(cè)量準(zhǔn) 確度不能保證時(shí)，需要縮小儀表口徑，從而提 高管內(nèi)流速，得到滿意測(cè)量結(jié)果。

    西門子超聲波流量計(jì)北京*中   1、西門子 精密功能檢查
    西門子 精度等級(jí)和功能根據(jù)測(cè)量要求和使用場(chǎng)合選擇儀表精 度等級(jí)，做到經(jīng)濟(jì)合算。比如用于貿(mào)易結(jié)算、產(chǎn)品交接和能源計(jì)量的場(chǎng)合，應(yīng)該選擇精度等級(jí)高些，如1.0級(jí)、0.5級(jí)，或者更高等級(jí); 用于過程控制的場(chǎng)合，根據(jù)控制要求選擇不 同精度等級(jí);有些僅僅是檢測(cè)一下過程流量，無(wú)需做精確控制和計(jì)量的場(chǎng)合，可以選擇精度等級(jí)稍低的，如1.5級(jí)、2.5級(jí)，甚至 4.0級(jí)，這時(shí)可以選用價(jià)格低廉的插入式超聲波流量計(jì)。
    2、西門子 可測(cè)量的介質(zhì)
    西門子 測(cè)量介質(zhì)流速、儀表量程與口徑 測(cè)量一般的介質(zhì)時(shí)，超聲波流量計(jì)的滿度 流量可以在測(cè)量介質(zhì)流速0.5—12m/s范圍內(nèi) 選用，范圍比較寬。選擇儀表規(guī)格(口徑)不一 定與工藝管道相同，應(yīng)視測(cè)量流量范圍是否 在流速范圍內(nèi)確定，即當(dāng)管道流速偏低，不能滿足流量?jī)x表要求時(shí)或者在此流速下測(cè)量準(zhǔn) 確度不能保證時(shí)，需要縮小儀表口徑，從而提 高管內(nèi)流速，得到滿意測(cè)量結(jié)果。
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    西門子超聲波流量計(jì)北京*中
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