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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="g88yqsz" 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>射頻導(dǎo)納物位開關(guān)單價(jià),物位開關(guān)</p><p><span>***更新：</span>2021-01-24 00:26:54</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="od32jiu" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海翼爾電子科技有限公司</a></p><p><span>聯(lián)系人：</span>趙“S</p><p><span>郵箱: </span>yeertec@163.com</p><p><span>電話: </span>13361991561</p><p><span>傳真: </span>021_57155131</p><p><span>網(wǎng)址: </span>http://www.yeer-tec.com</p><p><span>手機(jī): </span>021-57488360</p><p><span>地址: </span>海灣旅游區(qū)莘奉公路4960號110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="u7zy2aw" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tn4btf2" class="box"><p><p style="text-indent:25px">浮球液位開關(guān)結(jié)構(gòu)主要基于浮力和靜磁場原理設(shè)計(jì)生產(chǎn)的。帶有磁體的浮球（簡稱浮球）在被測介質(zhì)中的位置受浮力作用影響：液位的變化導(dǎo)致磁性浮子位置的變化。浮球中的磁體和傳感器（磁簧開關(guān)）作用，產(chǎn)生開關(guān)信號。音叉液位開關(guān)的工作原理是通過安裝在基座上的一對壓電晶體使音叉在一定共振頻率下振動。當(dāng)音叉液位開關(guān)的音叉與被測介質(zhì)相接觸時(shí)，射頻導(dǎo)納物位開關(guān)單價(jià)，音叉的頻率和振幅將改變，音叉液位開關(guān)的這些變化由智能電路來進(jìn)行檢測，射頻導(dǎo)納物位開關(guān)單價(jià)，射頻導(dǎo)納物位開關(guān)單價(jià)，處理并將之轉(zhuǎn)換為一個(gè)開關(guān)信號，達(dá)到液位報(bào)警或控制的目的。為了讓音叉伸到罐內(nèi)，通常使用法蘭或者帶螺紋的工藝接頭將音叉開關(guān)安裝到罐體的側(cè)面或者頂部。物位開關(guān)安裝后無須調(diào)整，即可穩(wěn)定投入使用。射頻導(dǎo)納物位開關(guān)單價(jià)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="射頻導(dǎo)納物位開關(guān)單價(jià),物位開關(guān)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407041424532719/7369149.png"></div><p style="text-indent:25px">音叉式物位限位開關(guān)依靠壓電晶體驅(qū)動叉體振動。當(dāng)叉體被液體浸沒時(shí)，叉體震蕩頻率下降，據(jù)此判斷液位是否到達(dá)叉**置。該原理不受被測介質(zhì)電參數(shù)的影響，穩(wěn)定性高。安裝后不需調(diào)較、免維護(hù)、壽命長，購買成本較高，是過程控制中液位限位檢測和控制的選擇。射頻電容式物位限位開關(guān)在倉體側(cè)壁或頂部安裝探頭，利用探頭與倉壁之間形成的電容器對物料高度是否到達(dá)傳感器探頭的位置進(jìn)行檢測。該“料位開關(guān)”屬通用型“料位開關(guān)”，固體、液位物料均可以檢測，現(xiàn)場適應(yīng)能力強(qiáng)，特別適合于高溫、高壓、強(qiáng)腐蝕、強(qiáng)粘附、強(qiáng)沖擊的場合下應(yīng)用，購買成本中等，壽命長、免維護(hù)。雷達(dá)控制開關(guān)生產(chǎn)物位開關(guān)在安裝前都應(yīng)認(rèn)真閱讀并嚴(yán)格按照產(chǎn)品說明書的安裝要求進(jìn)行操作。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="射頻導(dǎo)納物位開關(guān)單價(jià),物位開關(guān)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407041415372535/1969433.png"></div><p style="text-indent:25px">料位開關(guān)的防護(hù)板安裝要求：首先，安裝在探頭的正上方；其次，該防護(hù)擋板的長度應(yīng)大于探頭水平安裝的插入長度，確保能保護(hù)探頭不受損壞；三要注意選用合理的防護(hù)板形狀，一般性物料防護(hù)擋板的可選用凸型結(jié)構(gòu)，如果被測物料是粗糙或具有很大磨損性的物料，可以選擇凹型防護(hù)擋板，以讓物料在凹槽內(nèi)形成一定的堆積，減少物料對擋板的沖擊，從而提高防護(hù)擋板的使用壽命。當(dāng)料位開關(guān)安裝在戶外或有潮氣的環(huán)境中時(shí)，在接入電纜之前，請將電纜線彎曲并朝下引，當(dāng)遇到下雨或存在冷凝現(xiàn)象的情況時(shí)，雨水和冷凝水便會隨之往下的流，防止水或潮氣進(jìn)入料位開關(guān)。</p><p style="text-indent:25px">物位開關(guān)定位使用指導(dǎo)說明:1、使用前開關(guān)置位:（1）“OUT PUT”開關(guān)置于“NC”；（2）感度旋鈕右旋到頭置于高感度“HIGH”位置；2、開機(jī)檢測調(diào)試;（1）接通電源后，紅燈亮，繼電器閉動作，5秒左右，探頭振動，紅燈息滅，繼電器開動作(“OUT PUT”開關(guān)置于“NO”時(shí)狀態(tài)相反),手觸摸探頭前端，紅燈亮，離開，1～２秒紅燈息滅。（2）感度選擇，可根據(jù)料物在安裝前調(diào)定，但對于一般物料可置于“HIGH”位置，無需調(diào)試；（液位用開關(guān)定貨時(shí)應(yīng)說明）。（3）作業(yè)溫度較高時(shí)，在保證準(zhǔn)確測定的前提下，盡可能選擇低“LOW”感度；3、測定：（1）探頭接觸到物料時(shí)，探頭停振，紅燈亮，繼電器閉動作；（“NO”時(shí)狀態(tài)相反）。（2）物料離開探頭時(shí)，1~2秒，探頭重新振動，紅燈息滅，繼電器開動作；（“NO”時(shí)狀態(tài)相反）。4、接線端子輸出，操作面板表示的輸出是“OUT PUT”開關(guān)置于“NO”時(shí)的輸出；5、注意：接線導(dǎo)入導(dǎo)出時(shí)，要注意安全，不可帶電接線，以防短路，燒毀基板或探頭；6、粉塵狀態(tài)環(huán)境下工作時(shí)，應(yīng)保持整機(jī)密封狀態(tài)使用。電容物位開關(guān)是一種新型的物位儀表。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="射頻導(dǎo)納物位開關(guān)單價(jià),物位開關(guān)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039834942871/2090269.png"></div><p style="text-indent:25px">射頻導(dǎo)納物位開關(guān)與電容式物位開關(guān)是兩種常見的料位開關(guān)。從外觀上觀察，射頻導(dǎo)納式的探頭由測量極、保護(hù)極、罐體極三層金屬相互隔離組成，而電容式的探頭由測量極和罐體極兩層金屬相互隔離組成。以上探頭結(jié)構(gòu)的不同，是因?yàn)樯漕l導(dǎo)納式增加了解決電容式易受掛料影響而誤報(bào)警問題的抗掛料電路。射頻導(dǎo)納物位開關(guān)由探頭測量極與空載罐體間的電抗共同構(gòu)成平衡電橋電路并產(chǎn)生一個(gè)穩(wěn)定振蕩信號，當(dāng)被測介質(zhì)覆蓋探頭測量極時(shí)振蕩信號停止，后級電路檢測到這一變化從而輸出報(bào)警信號。振動式物位開關(guān)有振棒料位開關(guān)、音叉料位開關(guān)、音叉液位開關(guān)和緊湊型音叉液位開關(guān)幾種。雷達(dá)控制開關(guān)生產(chǎn)</p><p style="text-indent:25px">物位開關(guān)解決了長期以來電容式物位限位開關(guān)在使用中溫漂大、不易標(biāo)定的兩大難題。射頻導(dǎo)納物位開關(guān)單價(jià)</p><p style="text-indent:25px">音叉物位開關(guān)，抗沖擊能力較差，也不能受百大力擠壓，因度為變形后無法共振，高料位還可以安裝，低料位不能使知用，安裝時(shí)應(yīng)避開進(jìn)料口和出料口，如果不能，要安裝擋板。音叉測量道的介質(zhì)不能有內(nèi)粘附性，如果物料粘附在音叉上，會改變音叉固有的震動頻率，也很容容易引起不能共振的故障音叉變百形后，容易不起振。安裝時(shí)要度注意不知能安裝在入料口出料口附近。音叉物位開關(guān)，抗沖擊能力較差，也不能受大力擠壓，因?yàn)樽冃魏鬅o法共振，高料位還可以安裝，低料位不能使用，安裝時(shí)應(yīng)避開進(jìn)料口和出料口，如果不能，要安裝擋板。音叉測量的介質(zhì)不能有粘附性，如果物料粘附在音叉上，會改變音叉固有的震動頻率，也很容易引起不能共振的故障。射頻導(dǎo)納物位開關(guān)單價(jià)</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2978633.html</p></div></div></div></div></div><div id="d3x3qn2" class="page-right twoColRt"><div id="j22yfho" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="uod3ewy" 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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