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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439390527344/2017285.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="aur4q2x" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439390527344/2017285.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="aphrtau" 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>河北設(shè)備級(jí)壓力變送器哪里買,壓力變送器</p><p><span>***更新：</span>2020-12-17 10:25:53</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="xm79uoa" 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="lvn9fhj" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="lvszubd" class="box"><p><p style="text-indent:25px"><p>壓力變送器是一款常用的變送器類型。具有精度高、穩(wěn)定性好、響應(yīng)速度快，河北設(shè)備級(jí)壓力變送器哪里買、抗干擾能力強(qiáng)，結(jié)構(gòu)小巧、安裝方便等優(yōu)點(diǎn)。壓力變送器的電路是整個(gè)儀表中重要的組成部分，電路的正常與否影響著壓力變送器的工作狀態(tài)。我們?nèi)绾螌?duì)壓力變送器的電路進(jìn)行檢查呢？下面來看具體分析。<p>狀況一：將壓力變送器接通電源，當(dāng)壓力變送器輸入壓力信號(hào)后，檢查輸出端電壓信號(hào)的狀態(tài)。<p>若無輸出電壓，應(yīng)首先檢查電源電壓是否正常，是否符合供電要求，電源與壓力變送器及負(fù)載設(shè)備之間有無接線錯(cuò)誤。如果壓力變送器接線端子上無電壓或極性接反均可造成變送器無電壓信號(hào)輸出。<p>線路板接插件有無接觸不良現(xiàn)象，可采取對(duì)照正常儀表的測(cè)量電壓與故障儀表對(duì)應(yīng)的測(cè)量電壓相比較的方法，確定故障點(diǎn)，河北設(shè)備級(jí)壓力變送器哪里買。必要的情況下可更換有故障的放大器板。<p>狀況二：接通電源，在給定輸入壓力信號(hào)后，河北設(shè)備級(jí)壓力變送器哪里買，若壓力變送器輸出過高或過低，且改變輸入壓力信號(hào)和調(diào)整零點(diǎn)、量程螺釘時(shí)輸出均無反應(yīng)。<p>對(duì)于這類故障，除檢查壓力變送器測(cè)量部分敏感部件有無異常外，應(yīng)檢查壓力變送器放大器板上“振蕩控制電路部分”工作正常與否。其次檢查放大器板上各運(yùn)算放大器的工作狀況;各部分的元器件有無損壞問題等。此類故障需要更換放大器板。常規(guī)的壓力變送器輸出信號(hào)有4～20mA電流輸出、0～10VDC、0.5～2.5VDC等電壓輸出和RS485數(shù)字輸出信號(hào)。河北設(shè)備級(jí)壓力變送器哪里買</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北設(shè)備級(jí)壓力變送器哪里買,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439390527344/2017285.png"></div><p> 小型/高頻/防腐壓力變送器，詳細(xì)信息： </p> <p> 在**測(cè)試、化工爆破、土木及流體力學(xué)實(shí)驗(yàn)中，需要敏感元件將現(xiàn)場(chǎng)的“力”以及“力”從零到比較大的變化過程不失真的記錄下來，這就要求壓力傳感器有足夠高的響應(yīng)頻率。高頻壓力傳感器利用半導(dǎo)體硅的楊氏彈性模量和良好的力學(xué)特性做成，從而使傳感器具有很高的固有頻率，結(jié)合SMI先進(jìn)的結(jié)構(gòu)設(shè)計(jì)，減小了頻率損耗和應(yīng)力，從而獲得很高的響應(yīng)頻率和穩(wěn)定的信號(hào)，調(diào)理電路經(jīng)過寬帶放大、一體化溫度補(bǔ)償，穩(wěn)定性好、可靠性高、對(duì)敏感元件的帶寬無影響，是瞬間壓力測(cè)量的理想產(chǎn)品。 </p> <p> 特點(diǎn)： </p> <p> 響應(yīng)頻率高、可靠性好、測(cè)量范圍； </p> <p> 電源自穩(wěn)定技術(shù)、自動(dòng)恢復(fù)技術(shù)； </p> <p> 過壓、過流自動(dòng)保護(hù)。 </p> <p> 應(yīng)用： </p> <p> jun事實(shí)驗(yàn)、土木工程、地質(zhì)勘測(cè)； </p> <p> 化工實(shí)驗(yàn)、科研教學(xué)、風(fēng)洞試驗(yàn)； </p> <p> 液壓氣動(dòng)、流體力學(xué)等。陜西設(shè)備級(jí)壓力變送器性能如果壓力變送器的電源小于7.5VDC，則應(yīng)檢查回路中是否有大的負(fù)載。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北設(shè)備級(jí)壓力變送器哪里買,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439170791016/8261680.png"></div><p> 壓力變送器與液位傳感器是各類設(shè)備中或項(xiàng)目中經(jīng)常遇到的兩類傳感器，下面來了解壓力變送器與液位傳感器兩者的區(qū)別? </p> <p> 1、壓力傳感器和液位傳感器的測(cè)量原理，都是將傳感器投入被測(cè)液體設(shè)定深度，傳感器測(cè)量點(diǎn)直接接觸液面受到的壓力公式為：Ρ=ρ.g.H + Po,式中：P表示液位傳感器測(cè)量點(diǎn)直接接觸液面所受壓力， ρ表示被測(cè)液體的密度值，g表示重力加速度,Po是液面上大氣壓,H是傳感器投入液體的深度同時(shí)，通過導(dǎo)氣不銹鋼將液體的壓力引入到傳感器的正壓腔，再將液面上的大氣壓Po與傳感器的負(fù)壓腔相連，以抵消傳感器背面的Po，使傳感器測(cè)得壓力為：ρ.g.H，顯然,通過測(cè)取壓力P，可以得到液位深。 </p> <p> 2、液位測(cè)量法：液位測(cè)量方法可分為機(jī)械高度法和壓強(qiáng)測(cè)定法。機(jī)械高度：機(jī)械傳動(dòng)結(jié)構(gòu)復(fù)雜，器械的豎直度影響測(cè)量精度。并且是筆繪模擬曲線或人工讀數(shù)。壓強(qiáng)法：利用埋于液體底部或一定深度的壓力傳感器測(cè)定壓力，利用公式Pa=ρCH得到液位的高度。又可根據(jù)容器的結(jié)構(gòu)設(shè)計(jì)尺寸得到相應(yīng)高度的容器容量——所盛液體的體積。壓力傳感器輸出的是與壓力傳感器成正比的電信號(hào)，可以遠(yuǎn)距離傳輸，并便于自動(dòng)記錄和為處理器的修正、補(bǔ)償，進(jìn)一步提高精度。 </p> <p> <br /> </p><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(dāng)被測(cè)量值增加或減少時(shí)，輸出中出現(xiàn)的zuida差值。 </p> <p> 激勵(lì)：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(diǎn)輸出，上限值輸出、漂移等參數(shù)要在規(guī)定的激勵(lì)條件下測(cè)量。 </p> <p> 零點(diǎn)漂移：零點(diǎn)漂移是指在規(guī)定的時(shí)間間隔及標(biāo)準(zhǔn)條件下，零點(diǎn)輸出值的變化。由于周圍環(huán)境溫度變化引起的零點(diǎn)漂移稱為熱零點(diǎn)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(zhǎng)久性變化的被測(cè)量的zuida值。 </p> <p> 穩(wěn) 定性：壓力變送器在規(guī)定的條件下儲(chǔ)存、試驗(yàn)或使用，經(jīng)歷規(guī)定的時(shí)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(shí)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(dá)到各項(xiàng)技術(shù)指標(biāo)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。一般意義上的壓力變送器主要由測(cè)壓元件傳感器（也稱作壓力傳感器）、測(cè)量電路和過程連接件三部分組成。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北設(shè)備級(jí)壓力變送器哪里買,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439053603516/4341137.png"></div><p> 壓力變送器采用電流輸出的方式有很多優(yōu)勢(shì)：diyi、壓力變送器不易受寄生熱電偶和沿電線電阻壓降和溫漂的影響，常規(guī)導(dǎo)線就能滿足工況需求；可節(jié)省大量電纜線和安裝費(fèi)用。第二、當(dāng)壓力變送器電流源輸出電阻足夠大時(shí)，經(jīng)磁場(chǎng)耦合感應(yīng)到導(dǎo)線環(huán)路內(nèi)的電壓，不會(huì)產(chǎn)生明顯影響，因?yàn)楦蓴_源引起的電流極小，一般利用雙絞線就能降低干擾；三線制與四線制必須用屏蔽線，屏蔽線的屏蔽層要妥善接地。第三、電容性干擾會(huì)導(dǎo)致jieshouqi電阻產(chǎn)生有關(guān)誤差，對(duì)于4~ 20mA 兩線制環(huán)路， jieshouqi電阻通常為2508 （取樣Uou t=1~ 5V ）這個(gè)電阻小到不足以產(chǎn)生明顯誤差，因此，可以允許的電線長(zhǎng)度比電壓遙測(cè)系統(tǒng)更長(zhǎng)更遠(yuǎn)。第四、壓力變送器各個(gè)單臺(tái)示讀裝置或記錄裝置可以在電線長(zhǎng)度不等的不同通道間進(jìn)行換接，不因電線長(zhǎng)度的不等而造成精度的差異，從而實(shí)現(xiàn)分散采集、集中控制。第五、將4mA 用于零電平，使判斷開路與短路或壓力變送器損壞（ 0mA 狀態(tài)）十分方便。第六、壓力變送器的兩線輸出口非常容易增設(shè)一兩只防雷防浪涌器件，有利于安全防雷防爆。 </p> <p> <br /> 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。河北煙塵治理壓力變送器哪家好</p><p style="text-indent:25px">安裝時(shí)應(yīng)使變送器的壓力敏感件軸向垂直于重力方向，若安裝條件限制，應(yīng)安裝固定后調(diào)整變送器零位到標(biāo)準(zhǔn)值。河北設(shè)備級(jí)壓力變送器哪里買</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(chǎng)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(jī)、冶金、車輛制動(dòng)、樓宇供水等壓力的測(cè)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(zhǎng)期穩(wěn)定性：0.1%FS/年負(fù)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(dòng)影響：對(duì)于20HZ-1KHZ的機(jī)械振動(dòng)，輸出變化小于0.1%FS </p> <p> 密封等級(jí)：IP65 </p> <p> 螺紋連接：通用M20×1.5,其它螺紋可依客戶要求設(shè)計(jì) 河北設(shè)備級(jí)壓力變送器哪里買</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2443588.html</p></div></div></div></div></div><div id="2rjdpwd" class="page-right twoColRt"><div id="dnkofwt" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="peli793" 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" 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