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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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(chǎn)品關(guān)鍵詞：</span>紹興液位計(jì)廠家,液位計(jì)</p><p><span>***更新：</span>2021-01-10 03:12:49</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="0dkhovc" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南儀測(cè)控技術(shù)(上海)有限公司</a></p><p><span>聯(lián)系人：</span>桂經(jīng)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(wǎng)址: </span>https://www.nanicontrol.com</p><p><span>手機(jī): </span>021-61559357</p><p><span>地址: </span>滬閔路1871號(hào)9甲幢4樓407室</p><p>[當(dāng)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="52nmyv3" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ts3wyvx" class="box"><p><p style="text-indent:25px">帶有遠(yuǎn)傳變送器的磁翻板液位計(jì)，在其變送器部分及電氣部分的工作原理是利用磁性浮子作用在磁簧開關(guān)導(dǎo)致連入回路的電阻數(shù)目的變化，紹興液位計(jì)廠家，進(jìn)而使得傳感器部分可以發(fā)生與液位變化相對(duì)應(yīng)的電阻信號(hào)。通過信號(hào)轉(zhuǎn)化器，就可以把電阻信號(hào)轉(zhuǎn)化成4～20mA的電流信號(hào)。磁翻板液位計(jì)的電子元件幾乎沒有電容器、電感等儲(chǔ)能元器件?？梢辕B加通訊協(xié)議，也可以使用總線通訊，紹興液位計(jì)廠家。為了擴(kuò)大磁翻板液位計(jì)的使用范圍，還可以根據(jù)相關(guān)標(biāo)準(zhǔn)及要求增加液位變送裝置，以輸出多種電信號(hào)。其中，4～20mA電流信號(hào)是比較常用的一種。比如：在監(jiān)測(cè)液位的同時(shí)磁控開關(guān)信號(hào)可用于對(duì)液位進(jìn)行控制或報(bào)警；在翻柱液位計(jì)的基礎(chǔ)上增加了4~20mA變送傳感器，紹興液位計(jì)廠家，在現(xiàn)場(chǎng)監(jiān)測(cè)液位的同時(shí)，將液位的變化通過變送傳感器、線纜及儀表傳到控制室，實(shí)現(xiàn)遠(yuǎn)程監(jiān)測(cè)和控制，這個(gè)就是磁翻板液位計(jì)現(xiàn)實(shí)遠(yuǎn)傳信號(hào)輸出的原理及過程。磁浮子式液位計(jì)輸出信號(hào)：4～20mA.DC（兩線制）。紹興液位計(jì)廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興液位計(jì)廠家,液位計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401929194283619/1599620.png"></div><p style="text-indent:25px">被測(cè)液體密度變化造成的影響:ρ為被測(cè)液體的密度，相比較浮筒外表吸附雜質(zhì)引發(fā)的測(cè)量零點(diǎn)偏移，被測(cè)液體的密度變化造成的測(cè)量誤差更為嚴(yán)重。從公式看液體密度ρ是一個(gè)分母值，其貫徹于測(cè)量的全程，如果被測(cè)液體的真實(shí)密度偏離設(shè)定密度，則公式的斜率就會(huì)發(fā)生變化，造成浮筒液位計(jì)測(cè)量點(diǎn)的整體偏移設(shè)定軌跡，導(dǎo)致浮筒液位計(jì)全程顯示不準(zhǔn)確。被測(cè)液體密度ρ發(fā)生變化主要有以下兩點(diǎn)造成：1、維護(hù)工作不到位.2、設(shè)定密度與實(shí)際密度不一致.浮筒液位計(jì)的測(cè)量原理決定了浮筒可以做成器壁很厚甚至實(shí)心的金屬桿，因此其耐壓性遠(yuǎn)遠(yuǎn)高于浮子液位計(jì)，被比較應(yīng)用于高壓及連鎖保護(hù)系統(tǒng)中。同時(shí)也因這個(gè)特點(diǎn)，浮筒液位計(jì)連接鋼絲的拉力變化范圍小，導(dǎo)致浮筒液位計(jì)抗干擾能力較差，若被測(cè)液體的密度不穩(wěn)定，浮筒液位計(jì)的測(cè)量誤差會(huì)很大，其抗介質(zhì)密度波動(dòng)能力不如磁浮子液位計(jì)，因此要根據(jù)現(xiàn)場(chǎng)實(shí)際情況合理選擇。紹興液位計(jì)廠家投入式液位計(jì)膜片：不銹鋼316L 。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興液位計(jì)廠家,液位計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401929231236754/2134541.png"></div><p style="text-indent:25px">由于浮筒桿是一個(gè)體積小重量沉得金屬管，浮筒所排出的液體重量遠(yuǎn)遠(yuǎn)小于浮筒本身的重量，因此浮筒上部的連接件仍然處于緊繃狀態(tài)，扭力桿承受著浮筒重力減去浮筒所排出液體的重量（浮筒的浮力）產(chǎn)生一個(gè)變化的扭轉(zhuǎn)，此時(shí)浮筒液位計(jì)輸出一個(gè)變化的大于4毫安的電流。當(dāng)被測(cè)液體的液位達(dá)到zu高，此時(shí)浮筒全部浸沒入被測(cè)液體，此時(shí)浮筒所排出的液體的體積重量為一固定數(shù)值，此時(shí)扭力桿所承受的扭轉(zhuǎn)力為浮筒自身重量減去浮筒所排出的液體的重量，此時(shí)扭力桿承受著一個(gè)固定的扭轉(zhuǎn)力，浮筒液位計(jì)輸出的電流為20毫安，即浮筒液位計(jì)的滿度。根據(jù)阿基米德定律，整個(gè)液位測(cè)量過程中浮筒上部連接鋼絲所承受的拉力F= mg-ρVg=G -πd2/4ρgH公式中G為浮筒的重量，d為浮筒的外徑，ρ為被測(cè)液體的密度，H為被測(cè)液體的高度。上述的公式經(jīng)過轉(zhuǎn)換變?yōu)椋篐=4（G-F）/πd2ρ=K（G-F）/ρ式中K為一固定常數(shù)4/πd2從公式中可以看出鋼絲所受的拉力F在液體密度ρ一定的情況下，與被測(cè)液體的高度H成單值對(duì)應(yīng)的反比關(guān)系。只要檢測(cè)出浮筒上部鋼絲的拉力F即可得出被測(cè)液體的高度。</p><p style="text-indent:25px">變送器故障:變送器故障發(fā)生的幾率較少，行常見的故障就是變送器的零點(diǎn)發(fā)生漂移，此時(shí)應(yīng)對(duì)浮筒液位計(jì)進(jìn)行零點(diǎn)調(diào)校。此外變送器要做好防水工作，現(xiàn)場(chǎng)很多變送器故障就是因?yàn)樽兯推鞣浪ぷ鳑]有做好致使雨水進(jìn)入變送器接線端引發(fā)短路、對(duì)地泄流甚至燒毀電路板的故障。防凍措施:外浮筒液位計(jì)的結(jié)構(gòu)形式?jīng)Q定了，測(cè)量筒內(nèi)的液體與工藝容器內(nèi)的介質(zhì)物料交換較少，其裸露在外部空間的面積很散熱快。若被測(cè)液體具有易冷凝結(jié)晶含水等特征，需要對(duì)外浮筒液位計(jì)進(jìn)行伴熱和保溫措施，防止冬季氣溫低時(shí)測(cè)量筒內(nèi)的液體結(jié)冰造成液位計(jì)失靈甚至凍壞凍裂。投入式液位計(jì)環(huán)境溫度：-10℃～80℃。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="紹興液位計(jì)廠家,液位計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401929436881231/4394442.png"></div><p style="text-indent:25px">浮球降至行下方,旗板未歸零旗板跟不上浮球下降的速度，應(yīng)加裝節(jié)流裝置以減緩液面升降速度。旗板**不會(huì)翻轉(zhuǎn)，或**混亂應(yīng)確認(rèn)本體管周遭及內(nèi)部沒有磁性體存在，并于除去之后用磁鐵掃過一次，使顏色歸于一致。**360度翻轉(zhuǎn) 浮球磁場(chǎng)過強(qiáng)，洽客服人員更換浮球。近接開關(guān)不動(dòng)作用電表檢查開關(guān)動(dòng)作是否正常，磁鐵靠近時(shí)接點(diǎn)應(yīng)導(dǎo)通且電阻應(yīng)低于300MΩ以下，磁鐵移除后開關(guān)應(yīng)開路且電阻應(yīng)達(dá)10MΩ以上，若未達(dá)以上之要求應(yīng)更換新的近接開關(guān)。浮球連續(xù)式液位指示計(jì) 訊號(hào)轉(zhuǎn)換器之2條線不之如何接到指示計(jì)請(qǐng)依照操作手冊(cè)將訊號(hào)轉(zhuǎn)換器里有24V端接到指示計(jì)之+24V端，訊號(hào)轉(zhuǎn)換器之O/P端接到指示計(jì)之AI端，若通電后仍無法正常運(yùn)作應(yīng)洽客服人員。超聲波液位計(jì)針都采用了Echo-Pipe技術(shù)。紹興液位計(jì)廠家</p><p style="text-indent:25px">磁浮子式液位計(jì)量程：由測(cè)量范圍H確定。紹興液位計(jì)廠家</p><p style="text-indent:25px">投入式。投入式液位計(jì)是一種測(cè)量液位的壓力傳感器．靜壓投入式液位變送器（液位計(jì)）是基于所測(cè)液體靜壓與該液體的高度成比例的原理，采用國(guó)外先進(jìn)的隔離型擴(kuò)散硅敏感元件或陶瓷電容壓力敏感傳感器，將靜壓轉(zhuǎn)換為電信號(hào)，再經(jīng)過溫度補(bǔ)償和線性修正，轉(zhuǎn)化成標(biāo)準(zhǔn)電信號(hào)（一般為4～20mA/1～5VDC）。靈敏度高，響應(yīng)時(shí)間≤1ms。精度等級(jí)高，可達(dá)0.1級(jí)，聚氨酯導(dǎo)氣電纜，耐高溫、耐腐蝕，體積小巧，便于安裝、投放。液位計(jì)通過壓力的傳導(dǎo)來測(cè)量液位。集氣式集氣筒內(nèi)空氣受到被測(cè)液體的壓力作用通過導(dǎo)壓管壓力傳導(dǎo)至感應(yīng)元件上測(cè)量出液位變化其不直接作用被測(cè)介質(zhì)。纜式，桿式，直裝式中感應(yīng)元件直接作用被測(cè)介質(zhì).不同形式都因其特點(diǎn)應(yīng)用于非防爆要求的冶金、電力、造紙、石油、化工等行業(yè)測(cè)量液位使用。紹興液位計(jì)廠家</p><p style="text-indent:25px">南儀測(cè)控技術(shù)(上海)有限公司致力于五金、工具，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。南儀測(cè)控技術(shù)擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供壓力變送器，溫度傳感器，液位計(jì)，流量計(jì)。南儀測(cè)控技術(shù)繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長(zhǎng)，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。南儀測(cè)控技術(shù)始終關(guān)注五金、工具市場(chǎng)，以敏銳的市場(chǎng)洞察力，實(shí)現(xiàn)與客戶的成長(zhǎng)共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2778733.html</p></div></div></div></div></div><div id="y33jlsu" class="page-right twoColRt"><div id="qacelcz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dsphjl3" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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