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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="po8ah2h" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637329346640117187/6056585.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="utapwif" 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>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>西安一體化溫度變送器用途,溫度變送器</p><p><span>***更新：</span>2020-10-11 04:08:40</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="eiah7sp" 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(jī): </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(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="tcurtkr" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="utaczby" class="box"><p><p> 熱電阻溫度變送器: </p> <p> 熱電阻溫度變送器中采用的熱電阻是用半導(dǎo)體材料，大多為負(fù)溫度系數(shù)，即阻值隨溫度增加而降低。溫度變化會造成大的阻值改變，因此它是zui靈敏的溫度變送器，西安一體化溫度變送器用途，西安一體化溫度變送器用途。熱電阻體積非常小，對溫度變化的響應(yīng)也快。但熱敏電阻需要使用電流源，小尺寸也使它對自熱誤差極為敏感。熱電阻在兩條線上測量的是yiding 溫度，有較好的精度。熱電阻溫度變送器非常適合需要進(jìn)行快速和靈敏溫度測量的電流控制應(yīng)用。 </p> <p> 熱電偶溫度變送器: </p> <p> 熱電偶溫度變送器是溫度測量中zui常用的溫度變送器。其主要好處是寬溫度范圍和適應(yīng)各種大氣環(huán)境，而且結(jié)實(shí)、價(jià)低，無需供電，西安一體化溫度變送器用途，也是低價(jià)的。但熱電偶并不適合高精度的的測量和應(yīng)用。非強(qiáng)酸強(qiáng)堿均可以使用以普通材質(zhì)的溫度變送器，強(qiáng)酸強(qiáng)堿類的要求選用金屬類型的溫度變送器。西安一體化溫度變送器用途</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安一體化溫度變送器用途,溫度變送器" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637329346640117187/6056585.png"></div><p> 溫度傳感器元件的正常工作是要滿足其工作條件的，其中之一就是它的工作電流，由于溫度傳感器具有電阻值，當(dāng)電流流過溫度傳感器元件時(shí)，會有功率損耗，就會發(fā)熱，所以為了減小傳感器本身的發(fā)熱引起測溫誤差，所以要在滿足傳感器正常工作的條件下，盡量減少其本身的發(fā)熱。這就是為什么溫度傳感器要在恒定小電流條件下使用的原因。所以比如鉑熱電阻的常規(guī)工作電流是5MA，但我們推薦的工作電流是1MA。原因就是要減少溫度傳感器元件的自熱引起測量誤差。電流恒定，其輸出才會有溫度和電勢的線性關(guān)系。 </p> <p> 溫度傳感器的插入深度也是容易忽視的一個(gè)問題，有些客戶要求插入深度很短但是直徑比較大，這是不合理的，尤其是在高溫的情況下這是不可取的，理論上說溫度傳感器的插入深度一般可按實(shí)際需要決定。但*少插入深度不應(yīng)少于溫度傳感器保護(hù)套管直徑的8-10倍。這樣才能保證溫度傳感器性能穩(wěn)定。了解了溫度傳感器的工作電流和插入深度對我們選定和使用溫度傳感器是很有必要的。如果忽視這兩個(gè)細(xì)節(jié)問題很容易造成溫度傳感器性能不穩(wěn)定甚至損壞。甘肅氣動系統(tǒng)溫度變送器用途溫度變送器安裝在現(xiàn)場，冷端的溫度隨環(huán)境的變化而變化。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安一體化溫度變送器用途,溫度變送器" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637329347878291015/434530.png"></div><p> 一體化溫度變送器通常由測溫探頭（熱電偶或熱電阻傳感器）和兩線制固體電子單元構(gòu)成。選用固體模塊方式將測溫探頭直接安裝在接線盒內(nèi)，然后構(gòu)成一體化的變送器。一體化溫度變送器通常分為熱電阻和熱電偶型兩種類型。熱電阻溫度變送器是由基準(zhǔn)單元、R/V變換單元、線性電路、反接維護(hù)、限流維護(hù)、V/I變換單元等構(gòu)成。測溫?zé)犭娮栊盘栕儞Q擴(kuò)大后，再由線性電路對溫度與電阻的非線性關(guān)系進(jìn)行抵償，經(jīng)V/I變換電路后輸出一個(gè)與被測溫度成線性關(guān)系的4～20mA的恒流信號。熱電偶溫度變送器通常由基準(zhǔn)源、冷端抵償、擴(kuò)大單元、線性化處理、V/I變換、斷偶處理、反接維護(hù)、限流維護(hù)等電路單元構(gòu)成。它是將熱電偶發(fā)生的熱電勢經(jīng)冷端抵償擴(kuò)大后，再帽由線性電路消除熱電勢與溫度的非線性差錯(cuò)，終擴(kuò)大變換為4～20mA電流輸出信號。為避免熱電偶測量中由于電偶斷絲而使控溫失效形成事故，變送器中還設(shè)有斷電維護(hù)電路。當(dāng)熱電偶斷絲或接解不良時(shí)，變送器會輸出大值（28mA）以使外表堵截電源。 </p><p> 在溫度變送器的使用中，常常出現(xiàn)多種多樣的故障問題，常見的就是無輸出故障，只要用戶對其進(jìn)行適當(dāng)?shù)恼{(diào)試，一般就可以解決了。用戶適當(dāng)?shù)膶W(xué)習(xí)溫度變送器的無輸出調(diào)試，有利于用戶解決故障問題。下面是溫度變送器出現(xiàn)無輸現(xiàn)象的原因。 </p> <p> 1、查看溫度變送器的電源是否接反了，電源正負(fù)極是不是接正確了。 </p> <p> 2、測量變送器的供電電源，是否有24V直流電壓;必須保證供給變送器的電源電壓≥12V(即變送器電源輸入端電壓≥12V)。如果沒有電源則應(yīng)檢查回路是否斷線、檢測儀表是否選取錯(cuò)誤(輸入阻抗應(yīng)≤250Ω)等等。 </p> <p> 3、如果壓力變送器是帶表頭的，需要檢查表頭是否損壞(可以先將表頭的兩根線短路，如果短路后正常，則說明是表頭損壞)，如果是表頭損壞，則需另換表頭。 </p> <p> 4、如果是壓力變送器出現(xiàn)問題，可將電流表串入24V電源回路中，檢查電流是否正常。如果正常則說明變送器正常，此時(shí)應(yīng)檢查回路中其他儀表是否正常。 </p> <p> 5、電源是否接在變送器電源輸入端，把電源線接在電源接線端口上。 </p> <p> 溫度變送器無輸出調(diào)試的原因就是以上幾種情況。當(dāng)然，在實(shí)際應(yīng)用中，可能會出現(xiàn)很多問題導(dǎo)致溫度變送器不能正常工作，在安裝和使用前，建議大家要認(rèn)真的去拍出故障。電流變送器是將被測主回路交流電流轉(zhuǎn)換成恒流環(huán)標(biāo)準(zhǔn)信號，連續(xù)輸送到接收裝置。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安一體化溫度變送器用途,溫度變送器" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637329347108144531/6107652.png"></div><p> 投入式溫度變送器 </p> <p> 產(chǎn)品特點(diǎn): </p> <p> ·外觀精巧細(xì)致設(shè)計(jì)；·零、滿可現(xiàn)場調(diào)校；·反極性保護(hù)、過流過壓保護(hù)；·抗沖擊、抗震動、耐腐蝕。 </p> <p> 投入式溫度變送器是一種全密封結(jié)構(gòu)，可直接測量生產(chǎn)過程中的-10℃～70℃范圍內(nèi)介質(zhì)的溫度，同時(shí)輸出標(biāo)準(zhǔn) 4mA～20mADC 模擬信號或者 RS485 數(shù)字信號。廣用于石油、化工、冶金、電站、輕工等部門，與調(diào)節(jié)器、記錄儀表、計(jì)算機(jī)等配套使用，為現(xiàn)場使用和自動化控制提供方便。 </p> <p> 性能指標(biāo): </p> <p> 供電電源：供電電壓范圍 10V～30V DC，典型電壓 24V DC； </p> <p> 輸出信號：模擬信號 4mA～20mADC / RS485（與被測溫度成線性關(guān)系）; </p> <p> 環(huán)境溫度：-20℃～80℃; </p> <p> 相對濕度：≤80%; </p> <p> 測量溫度：-10℃～70℃; </p> <p> 準(zhǔn)確度等級：1.0 級; </p> <p> 絕緣電阻：環(huán)境溫度為 15℃～35℃，相對濕度 45%～75%，試驗(yàn)電壓為 500V DC，輸出接線端子與外套管之間的絕緣電阻不小于 20MΩ。 </p> <p> 結(jié)構(gòu)材料： </p> <p> 探頭外殼：不銹鋼； </p> <p> 防護(hù)等級：IP68; </p> <p> 連接電纜：聚乙烯**電纜; </p> <p> 橡膠套管：氯丁橡膠。 </p> <p> <br /> 數(shù)顯溫度變送器是一個(gè)兩線制變送器，即一對導(dǎo)線既是供電電源線，又是信號傳輸線配接兩線制顯示表頭。西安一體化溫度變送器用途</p><p style="text-indent:25px">一體化溫度變送器采用固體模塊形式將測溫探頭直接安裝在接線盒內(nèi)，從而形成一體化的變送器。西安一體化溫度變送器用途</p><p> 溫度變送器在鍋爐環(huán)境中使用時(shí)，需要注意以下幾點(diǎn)：1、溫度變送器在使用時(shí)，標(biāo)注的接地點(diǎn)必須全部有效接地。2、溫度變送器的外殼默認(rèn)為地，所以要求現(xiàn)場設(shè)備有效接地。3、現(xiàn)場使用者必須確保所用線纜的外徑在卡套允許的范圍之內(nèi)。另外還要確保線纜穩(wěn)固無間隙的安裝在卡套中。壓線帽鎖緊直徑5～9mm。4、要確保溫度變送器旋緊壓線鎖，以確保溫度變送器的防護(hù)等級。 </p> <p> 溫度變送器的檢測內(nèi)容包括以下幾個(gè)方面： </p> <p> 一：外觀檢測；需要對溫度變送器的外殼進(jìn)行有無脫漆、破損、裂痕以及被撞擊痕跡和緊固件缺損等情況的檢測。 </p> <p> 第二：內(nèi)部檢測；溫度變送器的元器件、零配件、連接件等有無缺損、斷裂、變形、腐蝕、密封不良等情況。 </p> <p> 第三：感溫元件檢測；溫度變送器的感溫元件和引線應(yīng)保持清潔、干燥、完整、無銹。保護(hù)套管完整無損、無凹痕、劃痕和明顯銹蝕等現(xiàn)象。 </p> <p> 第四：溫度變送器的計(jì)量性檢測（可以采用兩種方式）：帶傳感器檢測：就是將溫度變送器傳感部分插入到標(biāo)準(zhǔn)溫度源，通過改變標(biāo)準(zhǔn)溫度輸入，校準(zhǔn)溫度變送器的輸出電流。不帶傳感器檢測：斷開溫度變送器的傳感元件（熱電阻、熱電偶）使用標(biāo)準(zhǔn)電阻源及過程檢測設(shè)備，校準(zhǔn)溫度變送器的信號轉(zhuǎn)換部分。 </p> <p> <br /> 西安一體化溫度變送器用途</p><p style="text-indent:25px">西安倫騫電器設(shè)備有限責(zé)任公司是一家智能儀器儀表銷售：網(wǎng)絡(luò)設(shè)備銷售；安防設(shè)備銷售；閥門和旋塞銷售；計(jì)算機(jī)軟及軸助設(shè)備零售；環(huán)境監(jiān)測**儀器銷售；電氣設(shè)備銷售；機(jī)械設(shè)備銷售；電子元器件與機(jī)電組件設(shè)備銷售；電子產(chǎn)品銷售；終端計(jì)量設(shè)備銷售；終端測試設(shè)備銷售；供應(yīng)用儀器儀表銷售；電子**設(shè)備銷售；技術(shù)開發(fā)；普通機(jī)械設(shè)備安裝服務(wù)；智能儀器儀表制造：儀器儀表修理；儀器儀表制造；環(huán)境監(jiān)測**儀器儀表制造；其他通用儀器制造；電子測量儀器化工。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠實(shí)可信的企業(yè)。西安倫騫電器擁有一支經(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)著為客戶提供雷達(dá)料位計(jì)，雷達(dá)物位計(jì)，壓力變送器，溫度變送器。西安倫騫電器致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。西安倫騫電器創(chuàng)始人付海飛，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1506027.html</p></div></div></div></div></div><div id="az3p7a3" class="page-right twoColRt"><div id="8s7cdo3" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="t84y4d4" class="recomPic likePro"><a 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