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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>陜西省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>河北LED顯示壓力變送器廠家,壓力變送器</p><p><span>***更新：</span>2020-12-29 12:19:07</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="wasuwiu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">西安倫騫電器設(shè)備有限責(zé)任公司</a></p><p><span>聯(lián)系人：</span>付海飛</p><p><span>郵箱: </span>xalunqian@163.com</p><p><span>電話: </span>13891837328</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://xalunqian.shop.88360.com</p><p><span>手機: </span>138-91837328</p><p><span>地址: </span>高新區(qū)發(fā)展大道25號軍民融合創(chuàng)新港</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="8747xe3" class="page-proshow02"><p class="title">詳細說明</p><div id="pyfmd83" class="box"><p><p> 壓力變送器問題分析歸納： </p> <p> 1、變送器要測量什么樣的壓力：先確定系統(tǒng)中要確認測量壓力的zui大值，一般而言，河北LED顯示壓力變送器廠家，需要選擇一個具有比zui大值還要大1.5倍左右的壓力量程的變送器。這主要是在許多系統(tǒng)中，尤其是水壓測量和加工處理中，有峰值和持續(xù)不規(guī)則的上下波動，這種瞬間的峰值能破壞壓力傳感器，持續(xù)的高壓力值或稍微超出變送器的標定最大值會縮短傳感器的壽命，然而，由于這樣做會精度下降。于是，可以用一個緩沖器來降低壓力毛刺，但這樣會降低傳感器的響應(yīng)速度。所以在選擇變送器時，要充分考慮壓力范圍，精度與其穩(wěn)定性。 </p> <p> 2、什么樣的壓力介質(zhì)：我們要考慮的是壓力變送器所測量的介質(zhì),黏性液體，河北LED顯示壓力變送器廠家、泥漿會堵上壓力接口，溶劑或有腐蝕性的物質(zhì)會不會破壞變送呂中與這些介質(zhì)直接接觸的材料。以上這些因素將決定是否選擇直接的隔離膜及直接與介質(zhì)接觸的材料。一般的壓力變送器的接觸介質(zhì)部分的材質(zhì)采用的是316不銹鋼,如果你的介質(zhì)對316不銹鋼沒有腐蝕性，河北LED顯示壓力變送器廠家,那么基本上所有的壓力變送器都適合你對介質(zhì)壓力的測量.如果你的介質(zhì)對316不銹鋼有腐蝕性，那么我們就要采用化學(xué)密封起到保護壓力變送器,延長了壓力變送器的壽命. 壓力變送器的使用溫度是-40～85℃，但實際使用時比較好在-20~70℃以內(nèi)。河北LED顯示壓力變送器廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北LED顯示壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438680429688/3508761.png"></div><p> 壓力變送器基本參數(shù)注解: </p> <p> 遲滯：在規(guī)定的范圍內(nèi)，當被測量值增加或減少時，輸出中出現(xiàn)的zuida差值。 </p> <p> 激勵：為使壓力變送器正常工作而施加的外部能量。一般是電壓或電流。施加的電壓或電流不同，壓力變送器的輸出值等參數(shù)也不同，所以有的參數(shù)，如零點輸出，上限值輸出、漂移等參數(shù)要在規(guī)定的激勵條件下測量。 </p> <p> 零點漂移：零點漂移是指在規(guī)定的時間間隔及標準條件下，零點輸出值的變化。由于周圍環(huán)境溫度變化引起的零點漂移稱為熱零點漂移。 </p> <p> 過載：通常是指能夠加在壓力變送器上不致引起性能長久性變化的被測量的zuida值。 </p> <p> 穩(wěn) 定性：壓力變送器在規(guī)定的條件下儲存、試驗或使用，經(jīng)歷規(guī)定的時間后，仍能保持原來特性參數(shù)的能力。 </p> <p> 可靠性：指壓力變送器在規(guī)定的條件下和規(guī)定的時間內(nèi)完成所需功能的能力。 </p> <p> 工作溫度：指壓力變送器能夠達到各項技術(shù)指標和功能的環(huán)境溫度范圍。 </p> <p> 環(huán)境溫度：指壓力變送器在工作狀態(tài)下所處工作環(huán)境的溫度范圍。河北LED顯示壓力變送器廠家不管什么型號的差壓變送器，其正、負壓室都有排氣、排液閥或旋塞;這為我們現(xiàn)場校準差壓變送器提供了方便。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北LED顯示壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439597812500/9296063.png"></div><p> 壓力變送器的溫度范圍介紹 </p> <p> 在壓力變送器購買與應(yīng)用時，有多種多樣的技術(shù)參數(shù)需要我們了解。如果忽略了其中的一些信息，很容易造成壓力變送器的損壞。像是，壓力變送器應(yīng)用的管路溫度過高，而壓力變送器的實際使用溫度范圍在-40～80℃，如果我們對壓力變送器的使用溫度范圍有了解，會在現(xiàn)場工況中添加緩沖管，用于散熱，防止高溫對壓力變送器進行沖擊，確保壓力變送器的使用壽命。通常情況下壓力變送器會有兩個溫度段的標定。其中一個溫度段是正常工作溫度，另外一個是溫度補償范圍。正常工作溫度范圍是指變送器在工作狀態(tài)下，不被破壞的時候的溫度范圍，在超出溫度補償范圍時可能會達不到其應(yīng)有的性能指標。溫度補償范圍是一個比工作溫度范圍小的典型范圍。在這個范圍內(nèi)工作變送器肯定會達到其應(yīng)有的性能指標。 </p> <p> <br /> </p><p> 在易燃易爆的工況場合下，考慮到現(xiàn)場的安全性，需要選擇具有防爆功能的壓力變送器。壓力變送器在防爆方式中有三種方式：控制易爆氣體、控制局限和控制yinbao源。 </p> <p> 控制易爆氣體：防爆壓力變送器工作原理是在一個密封的隔爆箱體內(nèi)，充滿不含易爆氣體的潔凈氣體或惰性氣體，并保持箱內(nèi)氣壓略高于箱外氣壓，將壓力變送器安裝在箱內(nèi)。 </p> <p> 控制局限：這種形式的工作原理是將防爆壓力變送器外殼設(shè)計為隔爆標準殼體，防爆壓力變送器設(shè)計時按隔爆標準的殼體，按規(guī)范嚴格設(shè)計、制造和裝配一切的管理辦法執(zhí)行工藝，使在殼體內(nèi)發(fā)作的不致于激發(fā)殼體外風(fēng)險性氣體的。隔爆防爆辦法的設(shè)計與制造標準極端嚴厲，并且裝配、接線和維修的操作規(guī)程也十分嚴厲。該辦法決定了隔爆的電氣設(shè)備、儀表往往十分嚴格，操作須斷電等。 </p> <p> 控制yinbao源：此種方法的工作原理是應(yīng)用安全柵進行隔離接線從防爆壓力變送器在用電配電進行處理，將供應(yīng)給現(xiàn)場防爆壓力變送器的電能量限制在既不能發(fā)生足以yinbao的火花，又能發(fā)生足以yinbao的儀表外表溫升的平安局限內(nèi)。依照國際規(guī)范和我國的國度規(guī)范，當安全柵平安區(qū)一側(cè)所接設(shè)備發(fā)作任何以障時，實質(zhì)安全防爆辦法確保風(fēng)險現(xiàn)場的防爆安全。擴散硅壓力變送器具有工作可靠、性能穩(wěn)定、安裝使用方便、體積小、重量輕、性能價格比高等特點。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北LED顯示壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439507441406/8167624.png"></div><p> 壓力變送器的接觸材質(zhì)： </p> <p> 一般情況下壓力變送器的測量介質(zhì)為氣體和液體，但是有一點是必須重點注意的，就是壓力變送器的測量介質(zhì)不管是氣體還是液體，必須要與壓力變送器的接觸材質(zhì)兼容。 </p> <p> 壓力變送器與被測介質(zhì)接觸部分有膜片、過程連接等部分。壓力變送器的膜片、卡箍、螺紋、外殼選用的是質(zhì)量的304不銹鋼和316L不銹鋼材質(zhì)。也就是說，壓力變送器測量的介質(zhì)要與304或316L兼容。壓力變送器選擇使用的304不銹鋼，是不銹鋼中常見的一種材質(zhì)，密度為7.93 g/cm3，業(yè)內(nèi)也叫做18/8不銹鋼。耐高溫800℃，具有加工性能好，韌性高的特點。304不銹鋼地用于制作要求良好綜合性能的設(shè)備和機件。為了保持不銹鋼所固有的耐腐蝕性，鋼必須含有18%以上的鉻,8%以上的鎳含量。壓力變送器選用的316L不銹鋼因其優(yōu)異的耐腐蝕性在儀器儀表行業(yè)有著一定的應(yīng)用，316L也是屬于18-8型奧氏體不銹鋼的衍生鋼種，添加有2～3%的Mo元素。316L的Mo含量使得該鋼種擁有優(yōu)異的抗點蝕能力，市場上現(xiàn)有的316L大部分是按照美標來生產(chǎn)的。316與304在化學(xué)成分上的主要區(qū)別就是Mo的含量，316的耐腐蝕性更好些，比304在高溫環(huán)境下更耐腐蝕。所以在高溫環(huán)境下，工程師更傾向于選擇316材料的零部件。不僅是壓力變送器，所有變送器對靈敏度都有一定的要求。而且變送器的靈敏度是有方向性的。河北LED顯示壓力變送器廠家</p><p style="text-indent:25px">擴散硅壓力變送器可替代傳統(tǒng)的遠傳壓力表，霍爾元件、差動變送器，并具有DDZ-Ⅱ及DDZ-Ⅲ型變送器性能。河北LED顯示壓力變送器廠家</p><p> 帶LED顯示壓力變送器: </p> <p> 帶LED顯示表壓力傳感器、變送器采用全不銹鋼封焊結(jié)構(gòu)，具有良好的防潮能力及優(yōu)異的介質(zhì)兼容性,LED現(xiàn)場壓力顯示表,廣用于工業(yè)控制、水利、化工、醫(yī)療、電力、空調(diào)、金剛石壓機、冶金、車輛制動、樓宇供水等壓力的測量與控制。 </p> <p> 量程：0～150MPa </p> <p> 綜合精度：0.1%FS 0.2%FS 0.5%FS 1.0%FS </p> <p> 輸出：4～20mA </p> <p> 工作溫度：-10～80-150℃； </p> <p> 供電電壓：9～36 V </p> <p> 長期穩(wěn)定性：0.1%FS/年負載阻抗： </p> <p> 電流型zui大:800Ω 電壓型:50KΩ以上 </p> <p> 絕緣電阻：大于2000MΩ 100VDC </p> <p> 振動影響：對于20HZ-1KHZ的機械振動，輸出變化小于0.1%FS </p> <p> 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