插入式氣體流量計好特的溫度差測量方式克服了采用恒溫差原理的熱式氣體質量流量計測量煤氣流量時因煤氣中含水、油和雜質而造成的很大的零點漂移，導致無法測量的弊端。它也可以用于測量濕氣體的質量流量，如礦井下瓦斯抽放、送風，排風系統中的風量（速）的實時檢測。nuE壓力變(bian)送(song)(song)器(qi)_差(cha)壓變(bian)送(song)(song)器(qi)_液(ye)位變(bian)送(song)(song)器(qi)_溫(wen)度變(bian)送(song)(song)器(qi)
一、插入式氣體流量計概述nuE壓(ya)(ya)力變送(song)器(qi)_差(cha)壓(ya)(ya)變送(song)器(qi)_液位變送(song)器(qi)_溫度變送(song)器(qi)

  插入式氣體流量計利用熱擴散原理測量氣體流量的儀表。傳感器由兩個基準級熱電阻(RTD)組成。一個是速度傳感器RH，一個是測量氣體溫度變化的溫度傳感器RMG。當這兩個RTD置于被測氣體中時，其中傳感器RH被加熱，另一個傳感器RMG用于感應被測氣體溫度。隨著氣體流速的增加，氣流帶走更多熱量，傳感器RH的溫度下降。nuE壓力變(bian)送(song)(song)器(qi)_差(cha)壓變(bian)送(song)(song)器(qi)_液位變(bian)送(song)(song)器(qi)_溫度(du)變(bian)送(song)(song)器(qi)

 nuE壓力變送器_差壓變送器_液位(wei)變送器_溫度變送器

二、特點nuE壓(ya)力變(bian)(bian)送(song)(song)器_差壓(ya)變(bian)(bian)送(song)(song)器_液位變(bian)(bian)送(song)(song)器_溫度(du)變(bian)(bian)送(song)(song)器

安裝方便，維修簡單雙向檢測，防振動nuE壓力變(bian)送器(qi)_差(cha)壓變(bian)送器(qi)_液位(wei)變(bian)送器(qi)_溫(wen)度(du)變(bian)送器(qi)

多至24點流量測量nuE壓(ya)(ya)力變送(song)器_差壓(ya)(ya)變送(song)器_液位變送(song)器_溫度變送(song)器

輸出模擬量的校正多點非線性曲線修正nuE壓力變(bian)(bian)送(song)器(qi)_差壓變(bian)(bian)送(song)器(qi)_液位變(bian)(bian)送(song)器(qi)_溫度(du)變(bian)(bian)送(song)器(qi)

寬量程比100：1nuE壓(ya)力(li)變(bian)送(song)器(qi)_差壓(ya)變(bian)送(song)器(qi)_液位變(bian)送(song)器(qi)_溫度變(bian)送(song)器(qi)

流量與溫度同時檢測，切換顯示nuE壓力變送(song)器(qi)_差壓變送(song)器(qi)_液位(wei)變送(song)器(qi)_溫度變送(song)器(qi)

大口徑小流量測量，可做泄露檢測nuE壓力變(bian)送器_差壓變(bian)送器_液位變(bian)送器_溫度變(bian)送器

采用專有技術“雙平衡結構”封裝傳感器nuE壓力變送(song)器_差壓變送(song)器_液位變送(song)器_溫度(du)變送(song)器

專有高濕、高溫算法，介質溫度可達500℃nuE壓力變送(song)器(qi)_差壓變送(song)器(qi)_液位變送(song)器(qi)_溫度變送(song)器(qi)

直接質量流量檢測，wuxu溫度壓力補償nuE壓(ya)力(li)變送(song)器(qi)(qi)_差壓(ya)變送(song)器(qi)(qi)_液位變送(song)器(qi)(qi)_溫度(du)變送(song)器(qi)(qi)

三、分類nuE壓力變(bian)送器(qi)(qi)_差(cha)壓變(bian)送器(qi)(qi)_液位變(bian)送器(qi)(qi)_溫度變(bian)送器(qi)(qi)

插入式nuE壓力變送(song)(song)器_差壓變送(song)(song)器_液位變送(song)(song)器_溫度變送(song)(song)器
插入式傳感器可在線安裝、在線維護。安裝過程是shou先在管道外壁上焊接帶有外螺紋的底座，在底座上安裝1 寸不銹鋼球閥，而后用專用工具將管道打直徑為22mm的孔，打孔完畢后卸下專用工具，#后將傳感器安裝在閥門上并將傳感器插入到管內中心(傳感器的插入位置出廠時已確定)。插入式傳感器適用管道直徑：DN80～6000mm。nuE壓(ya)力(li)變(bian)送器(qi)_差壓(ya)變(bian)送器(qi)_液位變(bian)送器(qi)_溫度變(bian)送器(qi)

插入式熱式氣體質量流量計插入式熱式氣體質量流量計nuE壓力變送器(qi)_差壓變送器(qi)_液(ye)位變送器(qi)_溫(wen)度變送器(qi)

 nuE壓力變(bian)送(song)器(qi)_差壓變(bian)送(song)器(qi)_液位變(bian)送(song)器(qi)_溫度變(bian)送(song)器(qi)

管段式nuE壓力變(bian)(bian)送(song)(song)器(qi)_差壓變(bian)(bian)送(song)(song)器(qi)_液位變(bian)(bian)送(song)(song)器(qi)_溫度(du)變(bian)(bian)送(song)(song)器(qi)
管段式熱式氣體質量流量計出廠時已配備和現場管道內徑相同的工藝管道。與現場管道的連接方式為法蘭連接或螺紋連接。法蘭標準符合國標GB/T9119-2000。管段式傳感器適用管道直徑：DN15～2000mm。nuE壓(ya)(ya)力變送器(qi)_差壓(ya)(ya)變送器(qi)_液(ye)位變送器(qi)_溫度(du)變送器(qi)

管段式熱式氣體質量流量計管段式熱式氣體質量流量計nuE壓(ya)力變送(song)器_差壓(ya)變送(song)器_液(ye)位變送(song)器_溫度變送(song)器

傳感器材質為不銹鋼，管道材質為碳鋼或不銹鋼。nuE壓力變(bian)(bian)(bian)送器(qi)(qi)_差壓變(bian)(bian)(bian)送器(qi)(qi)_液(ye)位變(bian)(bian)(bian)送器(qi)(qi)_溫度變(bian)(bian)(bian)送器(qi)(qi)

插入式傳感器可在線安裝、在線維護。安裝過程是shou先在管道外壁上焊接帶有外螺紋的底座，在底座上安裝1 寸不銹鋼球閥，而后用專用工具將管道打直徑為22mm的孔，打孔完畢后卸下專用工具，#后將傳感器安裝在閥門上并將傳感器插入到管內中心(傳感器的插入位置出廠時已確定)。插入式傳感器適用管道直徑：DN80～6000mm。nuE壓力變(bian)送器(qi)_差壓變(bian)送器(qi)_液位(wei)變(bian)送器(qi)_溫度(du)變(bian)送器(qi)

四、參數nuE壓力(li)變送(song)器_差壓變送(song)器_液(ye)位變送(song)器_溫度變送(song)器

適用介質：與不銹鋼相兼容的一切氣體nuE壓(ya)力變(bian)送器_差(cha)壓(ya)變(bian)送器_液(ye)位(wei)變(bian)送器_溫度變(bian)送器

測量范圍：0.05 - 120m/snuE壓力變送(song)器(qi)(qi)_差(cha)壓變送(song)器(qi)(qi)_液位變送(song)器(qi)(qi)_溫(wen)度變送(song)器(qi)(qi)

工作溫度：-40℃ - 510℃nuE壓(ya)(ya)力變(bian)送器(qi)_差壓(ya)(ya)變(bian)送器(qi)_液位變(bian)送器(qi)_溫度變(bian)送器(qi)

環境溫度：-40℃ - 85℃濕度小于90%RHnuE壓力變送(song)(song)器(qi)_差壓變送(song)(song)器(qi)_液(ye)位(wei)變送(song)(song)器(qi)_溫度(du)變送(song)(song)器(qi)

壓 降：nuE壓(ya)力變(bian)(bian)送器_差(cha)壓(ya)變(bian)(bian)送器_液(ye)位變(bian)(bian)送器_溫(wen)度變(bian)(bian)送器

對于直徑大于或等于3英寸的管道可以忽略不計電源要求：nuE壓力變送器_差壓變送器_液位變送器_溫度變送器

18 - 30VDC#大600mAnuE壓力變送(song)器(qi)_差壓變送(song)器(qi)_液位變送(song)器(qi)_溫度變送(song)器(qi)

180 - 230VAC#大2.5WnuE壓力變送器(qi)(qi)_差壓變送器(qi)(qi)_液位變送器(qi)(qi)_溫(wen)度變送器(qi)(qi)

100VAC#大3.15WnuE壓力變送(song)器(qi)(qi)(qi)_差(cha)壓變送(song)器(qi)(qi)(qi)_液(ye)位變送(song)器(qi)(qi)(qi)_溫度變送(song)器(qi)(qi)(qi)

輸出信號：與質量流量成比例的線形4-20mA與溫度成比例的線形4-20mAnuE壓(ya)力變(bian)送器(qi)_差壓(ya)變(bian)送器(qi)_液(ye)位變(bian)送器(qi)_溫度(du)變(bian)送器(qi)

精 度：1%的讀數±0.5%的滿量程nuE壓(ya)力變送器(qi)_差壓(ya)變送器(qi)_液位變送器(qi)_溫度變送器(qi)

重 復 性：±0.2%F.SnuE壓(ya)力變(bian)送(song)(song)器(qi)(qi)_差壓(ya)變(bian)送(song)(song)器(qi)(qi)_液(ye)位變(bian)送(song)(song)器(qi)(qi)_溫度(du)變(bian)送(song)(song)器(qi)(qi)

耐 壓：4.2MPanuE壓(ya)力變(bian)送(song)器(qi)(qi)_差壓(ya)變(bian)送(song)器(qi)(qi)_液位(wei)變(bian)送(song)器(qi)(qi)_溫(wen)度變(bian)送(song)器(qi)(qi)

響應時間：≤850msnuE壓力變送(song)器(qi)_差壓變送(song)器(qi)_液位變送(song)器(qi)_溫度變送(song)器(qi)

外殼材料：壓鑄鋁，A2/A4可選nuE壓力變送器(qi)_差(cha)壓變送器(qi)_液位變送器(qi)_溫度(du)變送器(qi)

探頭材料：316L，鉭，鈦等可選nuE壓力變送器(qi)_差(cha)壓變送器(qi)_液位變送器(qi)_溫度(du)變送器(qi)

球 閥：316LnuE壓(ya)力變送器_差壓(ya)變送器_液位變送器_溫(wen)度變送器

緊壓接頭：316L/304nuE壓力變(bian)送(song)器_差(cha)壓變(bian)送(song)器_液(ye)位變(bian)送(song)器_溫度變(bian)送(song)器

法 蘭：316L/304nuE壓力(li)變送(song)(song)器(qi)(qi)_差(cha)壓變送(song)(song)器(qi)(qi)_液位(wei)變送(song)(song)器(qi)(qi)_溫(wen)度變送(song)(song)器(qi)(qi)

報警輸出：繼電器常開觸點容量220AC/3A或24VDC（只針對流量值的報警輸出）、可以溫度輸出nuE壓力變(bian)(bian)送(song)器(qi)_差壓變(bian)(bian)送(song)器(qi)_液(ye)位變(bian)(bian)送(song)器(qi)_溫度變(bian)(bian)送(song)器(qi)

顯 示：寬屏LCD顯示，參數及變量可通過面板上按鍵設定（帶密碼保護）nuE壓力變送器_差壓變送器_液位變送器_溫度變送器

防護等級：IP65（不同廠家不同等級）nuE壓(ya)力變(bian)送器_差壓(ya)變(bian)送器_液位(wei)變(bian)送器_溫度(du)變(bian)送器

 nuE壓(ya)力變(bian)送(song)器(qi)_差壓(ya)變(bian)送(song)器(qi)_液位(wei)變(bian)送(song)器(qi)_溫(wen)度變(bian)送(song)器(qi)

五、安裝nuE壓力變送(song)(song)器(qi)_差壓變送(song)(song)器(qi)_液位變送(song)(song)器(qi)_溫度變送(song)(song)器(qi)

1)插入式氣體流量計是基于振動的原理工作的，而在其工作的過程中又運用了電磁技術進行振動的激勵、扭角的檢測以及檢測信號的處理，因此熱式空氣質量流量計安裝的位置不能有大的振動源，也不能安裝在變壓器、電動機等產生強磁場的設備附近，以防止外界干擾影響其正常工作。nuE壓力(li)變送(song)器(qi)_差壓變送(song)器(qi)_液位變送(song)器(qi)_溫(wen)度變送(song)器(qi)

2)無直管段要求，但傳感器和管道連接時應避免應力存在。如果熱式氣體質量流量計安裝過程中，傳感器與管道中心線的同心度存在偏差，將導致振動管產生應力，該應力會形成壓力、拉力、或剪切力影響管道的對準，引起檢測探頭的不對稱性，導致零點變動，影響測量精度。若管道與傳感器同心度偏差過大，則有可能無法調整零點。因此應采取加固措施穩定儀表附近的管道。在流量傳感器安裝時應盡量采取軟連接的方式，法蘭連接螺絲要均勻對稱緊固。為減小殘存應力的影響，流量傳感器在安裝好后還要進行零點校準。為方便熱式空氣質量流量計的安裝及調零，插入式氣體流量計的前端和后端還要安裝截止閥。nuE壓力變送(song)(song)器(qi)_差壓變送(song)(song)器(qi)_液位變送(song)(song)器(qi)_溫度變送(song)(song)器(qi)

3)傳感器和變送器的連接電纜應使用廠家的專用電纜；變送器接收的是低電平信號，所以電纜不應太長。變送器安裝時確保用于將本質安全的傳感器電纜與電源和輸出電纜分開的隔板安裝到位；要確保傳感器接線盒和變送器外殼密封好，以免短路而導致測量誤差或者流量計故障。nuE壓力(li)變(bian)送(song)(song)器(qi)_差壓變(bian)送(song)(song)器(qi)_液位變(bian)送(song)(song)器(qi)_溫度變(bian)送(song)(song)器(qi)