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href="http://www.cdcfah.com/cp/third-llyb_liuliangji/">流量計</a>?常州渦街流量計哪家便宜推薦咨詢南儀測控技術供應</p><div id="6zfozvx" class="leftbox clearfix"><h1>常州渦街流量計哪家便宜推薦咨詢南儀測控技術供應</h1><div id="ttpjlxp" class="proBig"><div id="bkl2wxe" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dqsmoa8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nrjbdug" class="content"><p><span>需求數量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>常州渦街流量計哪家便宜,流量計</p><p><span>***更新：</span>2021-01-31 02:14:15</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯系我們</a></div></div><div id="xwtfg72" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南儀測控技術(上海)有限公司</a></p><p><span>聯系人：</span>桂經理</p><p><span>郵箱: </span>704766500@qq.com</p><p><span>電話: </span>17802114401</p><p><span>傳真: </span>021_</p><p><span>網址: </span>https://www.nanicontrol.com</p><p><span>手機: </span>021-61559357</p><p><span>地址: </span>滬閔路1871號9甲幢4樓407室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="4nkmtxy" class="page-proshow02"><p class="title">詳細說明</p><div id="zhjg2xw" class="box"><p><p style="text-indent:25px">電磁流量計有以下特點：1、采用SMD器件和表面貼裝（SMT）技術，電路可靠性高。2、管道內無可動部件，無阻流部件，測量中幾乎沒有附加壓力損失。3、在現場可根據用戶實際需要在線修改量程。4、測量結果與流速分布，流體壓力，溫度、密度、粘度等物理參數無關。5、高清晰度背光LCD顯示，全中文菜單操作，使用方便，操作簡單，易學易懂。6、具有RS485、RS232、Hart和Modbus等數字通訊信號輸出。（選配）7、具有自檢與自論斷功能。8、小時總量計錄功能，以小時為單位記錄流量總量，常州渦街流量計哪家便宜，適用于分時計量制（選配）9，常州渦街流量計哪家便宜、內部具有三個積算器可分別顯示正向累計量反向累計量及差值積算量，常州渦街流量計哪家便宜，內部設有不掉電始終，可記錄16次掉電時間。（選配）10、紅外手持操作器，115KHZ通訊速率，遠距離非接觸操作轉換器所有功能（選配）如果環(huán)境不去改變計量永遠會不準確的。常州渦街流量計哪家便宜</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州渦街流量計哪家便宜,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142236116619/4092847.png"></div><p style="text-indent:25px">渦輪流量計按信號檢測方式分類：1.感應式。傳感器葉輪中嵌有永磁性材料。當葉輪和永磁材料旋轉時，磁場交替接近與遠離傳感器殼體外的檢測線圈，線圈的感應電動勢隨著變化，此周期變化的頻率信號經放較大后輸出。2.渦輪流量計變磁阻式。葉輪葉片或輪轂由導磁材料制成，傳感器殼體外檢測線圈中裝有水磁性材料。當葉輪旋轉時，經圈內永磁材料形成的磁路，因導磁性葉片交替接近或遠離，磁通產生周期性變化，線圈的等效阻抗亦隨著變化，在放較大線路中產生連續(xù)的脈沖波。3.渦輪流量計笛簧管(干簧管)式。嵌在葉輪(或與其同步的其他旋轉元件)里的永磁性材料周期地打開和閉合傳感器殼體外笛管的簧片觸電，這種開關作用使恒流動(或恒壓)源產生電脈沖信號。4.光電式。葉輪葉片或葉輪驅動的元件隨著葉輪旋轉，周期性地遮斷光束，所產生的光脈沖信號轉換成電脈沖信號，近年出現光纖傳輸方式，有效地提高抗干擾性能。常州渦街流量計哪家便宜流量下限值：流量計能按規(guī)定精確度測t的小流量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州渦街流量計哪家便宜,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142302835889/3702973.png"></div><p style="text-indent:25px">一體化孔板流量計如何正確使用：科信儀表較面就為較大家進行詳細說明：1.導壓管系統(tǒng)注滿冷水作導壓介質，測量高溫蒸汽一般通過冷水導壓。在管線沒輸送蒸汽的情況較，打開一次閥，壓力閥和平衡閥，關閉排污閥，直接從冷凝罐注水孔注入冷水，直至全注滿為止。當然也可以關閉平衡閥和壓力閥，打開一次閥引進高溫蒸汽慢慢冷卻成水。這種方法由于蒸汽溫度太高，容易損壞儀表，一般不采用。特別要注意測量高溫蒸汽時導壓管沒注滿水或溫度很高嚴禁投入運行。測量壓縮空氣、冷水直接采用被介質導壓。2.差壓變送器排氣或排液，導壓管注滿水后，在差壓變送器的壓容室內有時要聚集少量氣體影響導壓，必須進行排除。擰開正、負壓容室較部的螺栓排液。一般新投入運行的儀表不用排液。檢查導壓管線系統(tǒng)無任何泄露，關閉所有閥門，準備投入運行。</p><p style="text-indent:25px">電磁流量計在造紙企業(yè)中的應用：篩選漂白工段電磁流量計使用情況：為保證紙張的白度均勻細致，要添加不同的添加劑、分散劑和漂白劑。與食品工業(yè)中添加劑的使用情況一樣，這些添加液的流量小，腐蝕性強，所以大多數都選用PTEE襯里和PFA襯里。因為H2O2的強氧化性，所以經常被造紙廠選作漂白劑，但H2O2對金屬材料的腐蝕性特別強。出于防腐的考慮，工程師們很喜歡選用Pt作為電極材料。但實際使用的情況證明，當過程壓力小于0.3MPa時，Pt電極會同H2O2發(fā)生反應，會在電極表面形成一層氣霧，我們稱其為觸媒反應。這時輸出信號會有很較**動。但選用鉭（Ta）電極就沒有上述問題了。如果我們在換用NaOH溶液時選用了鉭電極，那么情況就不那么樂觀了，因為堿液會使鉭電極產生表面效應。SGAIC校準實驗室的數據表明，鉭電極在測量一般的水時其特點的變動也要超過其他電極數十倍。小口徑智能電磁流量計安裝時要特別注意同心度。夾裝型渦輪流量計。傳感器本身無法蘭，靠管道上法蘭夾持住傳感器的兩密封端面，安裝方便。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="常州渦街流量計哪家便宜,流量計" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142327474870/5073743.png"></div><p style="text-indent:25px">電磁式流量計的流量測量原理基于法拉第電磁感應定律：當導電液體流動過圍在磁場中的測量管時，在與流動向和磁場二者相垂直的方向就會產生與平均流動速成正比的感應電動勢。流量計由傳感器和轉換器二部分組成。轉換器傳輸勵磁電流動到傳感器內部的線圈，從而在傳感器測量管內產生磁場，然后流動過測量管的導電液體因切割磁力線而產生感應電動勢，而固定在測量管管壁二側的電極接收并通過信號電纜將該感應電動勢傳輸給轉換器，轉換器將信號進行濾波、放較大、運算、變換后，得出被測介質的流量值。*后，轉換器輸出與流量測量值成正比的標準電流動信號或頻率信號。污水流量計只有測量導電的液體介質。常州渦街流量計哪家便宜</p><p style="text-indent:25px">電磁流量計測量結果與流速分布，流體壓力，溫度、密度、粘度等物理參數無關。常州渦街流量計哪家便宜</p><p style="text-indent:25px">電磁流量計GPRS模塊連接使用的建議：電磁流量計客戶端網絡的選擇?？蛻舳薖C機必須直接連接到互聯網，通過INTERNET可以直接訪問到客戶端，如果客戶端PC位于連接到INTERNET的局域網內，則必須通過設置將客戶端映射到INTERNET。附錄介紹了一種局域網設置方式，局域網內客戶端通過路由器連接INTERNET。通過設置路由器，將客戶端設置為DMZ主機，從而將客戶端暴露在公網上，實現客“直接”連接到互聯網?！粮鶕鴥雀骶W絡供應商的狀況，建議使用網通或電信的INTERNET連接服務，不建議使用鐵通的網絡。常州渦街流量計哪家便宜</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3086280.html</p></div></div></div></div></div><div id="p7kr2ct" class="page-right twoColRt"><div id="l3qxe34" class="box01 margin10 clearfix"><h3><a 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