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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="n57hv5z" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439832978516/8960542.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="97tt7n5" 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>河北水暖管道壓力變送器特點(diǎn),壓力變送器</p><p><span>***更新：</span>2021-01-30 01:12:22</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="hvprltl" 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(hào)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="7hvr7xz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="3pzd7vz" class="box"><p><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(cè)量介質(zhì)為氣體和液體，但是有一點(diǎn)是必須重點(diǎn)注意的，就是壓力變送器的測(cè)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(cè)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(cè)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(diǎn)。304不銹鋼地用于制作要求良好綜合性能的設(shè)備和機(jī)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，河北水暖管道壓力變送器特點(diǎn)，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(diǎn)蝕能力，市場(chǎng)上現(xiàn)有的316L大部分是按照美標(biāo)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，河北水暖管道壓力變送器特點(diǎn)，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。擴(kuò)散硅壓力變送器可替代傳統(tǒng)的遠(yuǎn)傳壓力表，霍爾元件，河北水暖管道壓力變送器特點(diǎn)、差動(dòng)變送器，并具有DDZ-Ⅱ及DDZ-Ⅲ型變送器性能。河北水暖管道壓力變送器特點(diǎn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北水暖管道壓力變送器特點(diǎn),壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439832978516/8960542.png"></div><p> 變送器需要多大的精度：決定精度的有，非線性，遲滯性，機(jī)電商務(wù)網(wǎng) 非重復(fù)性，溫度、零點(diǎn)偏置刻度，溫度的影響。但主要由非線性，遲滯性，非重復(fù)性，精度越高，價(jià)格也就越高。每一種電子式的測(cè)量計(jì)都會(huì)有精度誤差的,但是由于各個(gè)國家所標(biāo)的精度等級(jí)是不一樣的. </p> <p> 變送器的溫度范圍：通常一個(gè)變送器會(huì)標(biāo)定兩個(gè)溫度范圍，即正常操作的溫度范圍和溫度可補(bǔ)償?shù)姆秶?emsp;正常操作溫度范圍是指變送器在工作狀態(tài)下不被破壞的時(shí)候的溫度范圍，在超出溫度補(bǔ)范圍時(shí)，可能會(huì)達(dá)不到其應(yīng)用的性能指標(biāo)。溫度補(bǔ)償范圍是一個(gè)比操作溫度范圍小的典型范圍。在這個(gè)范圍內(nèi)工作，變送器肯定會(huì)達(dá)到其應(yīng)有的性能指標(biāo)。溫度變從兩方面影響著其輸出，一是零點(diǎn)漂移；二是影響滿量程輸出。如：滿量程的+/-X%/℃，讀數(shù)的+/-X%/℃，在超出溫度范圍時(shí)滿量程的+/-X%，在溫度補(bǔ)償范圍內(nèi)時(shí)讀數(shù)的+/-X%，如果沒有這些參數(shù)，會(huì)導(dǎo)至在使用中的不確定性。變送器輸出的變化到度是由壓力變化引起的，還是由溫度變化引起的。溫度影響是了解如何使用變送器時(shí)zui復(fù)雜的一部分。河北水暖管道壓力變送器特點(diǎn)變送器當(dāng)兩側(cè)壓力不一致時(shí)，壓力變送器和***壓力變送器的工作原理和差壓變送器相同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北水暖管道壓力變送器特點(diǎn),壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438390146484/6025357.png"></div><p> 電容式壓力變送器分為表壓型、絕壓型和差壓型. </p> <p> 電容式壓力變送器數(shù)據(jù)設(shè)置方法： </p> <p> 當(dāng)左下角的“88”字符顯示1～7時(shí)，表明變送器處于現(xiàn)場(chǎng)組態(tài)模式，此時(shí)可以通過按鍵輸入密碼、修改參數(shù)、或者進(jìn)行遷移。 </p> <p> 數(shù)據(jù)設(shè)置過程中，“S”鍵用于調(diào)整數(shù)字和小數(shù)點(diǎn)，“Z”鍵用于移位，“M”鍵用于保存。 </p> <p> 設(shè)置過程如下： </p> <p> 1．按下S鍵進(jìn)入數(shù)據(jù)設(shè)置界面，同時(shí)符號(hào)位開始閃爍，表示可修改符號(hào)位。 </p> <p> 2．若再次按下S鍵，可以切換數(shù)據(jù)的正負(fù)（正號(hào)用上箭頭表示）。 </p> <p> 3．按下Z鍵，diyi 位數(shù)字位開始閃爍，表示可修改，此時(shí)長按或連續(xù)多次按下S鍵，設(shè)置數(shù)字在0~9之間循環(huán)。 </p> <p> 4．再次按下Z鍵，可依次設(shè)置第二位到第五位數(shù)字，設(shè)置方法與diyi 位完全相同。 </p> <p> 5．設(shè)置完第五位數(shù)字后，按下Z鍵，開始設(shè)置小數(shù)點(diǎn)。四個(gè)小數(shù)點(diǎn)同時(shí)開始閃爍，表示可以設(shè)置小數(shù)點(diǎn)，此時(shí)按S鍵，小數(shù)點(diǎn)位置循環(huán)切換。 </p> <p> 6．小數(shù)點(diǎn)設(shè)置完成后，按下Z鍵，左下箭頭開始閃爍，表示可以保存設(shè)置。 </p> <p> 7．按下S鍵，保存設(shè)置；按下Z鍵，符號(hào)位開始閃爍，可重新開始設(shè)置數(shù)據(jù)。 </p> <p> <br /> </p><p> 實(shí)際上廠家對(duì)智能變送器的校準(zhǔn)也是有說明的，如ABB的變送器，對(duì)校準(zhǔn)就有:“設(shè)定量程”、“重定量程”、“微調(diào)”之分。其中“設(shè)定量程”操作主要是通過LRV.URV的數(shù)字設(shè)定來完成配置工作，而“重定量程”操作則要求將變送器連接到標(biāo)準(zhǔn)壓力源上，通過一系列指令引導(dǎo)，由變送器直接感應(yīng)實(shí)際壓力并對(duì)數(shù)值進(jìn)行設(shè)置。而量程的初始、終設(shè)置直接取決于真實(shí)的壓力輸入值。但要看到盡管變送器的模擬輸出與所用的輸入值關(guān)系正確，但過程值的數(shù)字讀數(shù)顯示的數(shù)值會(huì)略有不同，這可通過微調(diào)項(xiàng)來進(jìn)行校準(zhǔn)。由于各部分既要單獨(dú)調(diào)校又必需要聯(lián)調(diào)，因此實(shí)際校準(zhǔn)時(shí)可按以下步驟進(jìn)行： </p> <p> 1．先做一次4-20mA微調(diào)，用以校正變送器內(nèi)部的D/A轉(zhuǎn)換器，由于其不涉及傳感部件，無需外部壓力信號(hào)源。 </p> <p> 2．再做一次全程微調(diào)，使4-20mA、數(shù)字讀數(shù)與實(shí)際施加的壓力信號(hào)相吻合，因此需要壓力信號(hào)源。 </p> <p> 3．做重定量程，通過調(diào)整使模擬輸出4-20mA與外加的壓力信號(hào)源相吻合，其作用與變送器外殼上的調(diào)零(Z)、調(diào)量程(R)開關(guān)的作用完全相同。 </p> <p> 壓力變送器是一種比較常用的測(cè)量?jī)x器，可以將測(cè)壓元件受到的氣體、液體等物理參數(shù)轉(zhuǎn)變成標(biāo)準(zhǔn)的信號(hào)輸出，具有測(cè)量精細(xì)、性能穩(wěn)定、靈敏度高、操作簡(jiǎn)便等優(yōu)點(diǎn)。壓力變送器的測(cè)量介質(zhì)一定要與其材質(zhì)兼容，一旦發(fā)現(xiàn)不兼容須馬上更換壓力變送器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北水暖管道壓力變送器特點(diǎn),壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439246718750/8791737.png"></div><p> 值得注意的是，壓力變送器的供電電壓還有些特別的情況。 </p> <p> 情況一：壓力變送器采用的是帶顯示的表頭，那么供電電壓zui好選擇15～36V DC，因?yàn)閴毫ψ兯推鞯谋眍^也是需要一定的供給。 </p> <p> 情況二：如果我們的壓力變送器輸出信號(hào)為0.5～2.5V DC的輸出信號(hào)或者采用RS485輸出信號(hào)時(shí)，壓力變送器的供電電壓應(yīng)定制3～5V DC。 </p> <p> 情況三:如果我們采用的是防爆型壓力變送器本安防爆型或粉塵本質(zhì)安全型，壓力變送器的供電電壓就需要選用本安電源24V DC。 </p> <p> 以上就是大家需要注意的地方，希望能夠幫助到大家。影響壓力變送器長期穩(wěn)定性的因素除壓力變送器本身結(jié)構(gòu)外，還有就是變送器的使用環(huán)境。河北水暖管道壓力變送器特點(diǎn)</p><p style="text-indent:25px">壓力變送器的穩(wěn)定性指的是壓力變送器在使用一段時(shí)間后，其性能保持不變化的能力。河北水暖管道壓力變送器特點(diǎn)</p>小巧型壓力變送器是被測(cè)介質(zhì)的壓力直接作用于傳感器的膜片上(不銹鋼或陶瓷)，使膜片產(chǎn)生與介質(zhì)壓力成正比的微位移，使傳感器的電阻值發(fā)生變化，和用電子線路檢測(cè)這一變化，并轉(zhuǎn)換輸出一個(gè)對(duì)應(yīng)于這一壓力的標(biāo)準(zhǔn)測(cè)量信號(hào)。 <p> 小巧型壓力變送器的產(chǎn)品類型:1、擴(kuò)散硅壓力變送器2、陶瓷壓力變送器。 </p> <p> 小巧型壓力變送器產(chǎn)品特點(diǎn)：可調(diào)節(jié)；工作穩(wěn)定可靠；抗振動(dòng)、抗沖擊；反極性、過電壓保護(hù)；防電磁射頻干擾。 </p> <p> 小巧型壓力變送器的技術(shù)參數(shù)：測(cè)量范圍:-100KPa~60MPa允許溫度介質(zhì)溫度:-30~85℃比較高可達(dá)200℃環(huán)境溫度:-30~80℃儲(chǔ)存溫度:-30~+80℃溫度影響:TK<±0.02±%FS/K精度等級(jí):0.2、0.5級(jí)工作電壓:12~36VDC工作溫度:-30~80℃輸出信號(hào):4~20mA(二線制)、1~5V(三線制)負(fù)載電阻:<=750Ω。河北水暖管道壓力變送器特點(diǎn)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3069870.html</p></div></div></div></div></div><div id="nbz7bvv" class="page-right twoColRt"><div id="977t7rn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fz79hxp" 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" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="f7jbt5n" 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