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src="http://tyunfile.71360.com/UploadFile/boqu123/637190816659101563/4873436.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="owbiuhe" 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>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>上海在線PH計,PH計</p><p><span>***更新：</span>2020-06-14 00:27:04</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="f33eo8m" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海博取環(huán)境技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>吳龐博</p><p><span>郵箱: </span>2355456207@qq.com</p><p><span>電話: </span>15900820461</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-20966896</p><p><span>地址: </span>南匯新城鎮(zhèn)海洋一路333號</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="imqcebd" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ft3uzqh" class="box"><p><p> 獲取***內(nèi)容更新加入我們的郵寄名單?手持式儀表產(chǎn)品搜索器比較+140多種型號?選擇合適的pH計頂部無線pH計藍(lán)牙無線變送器與智能手機(jī)或平板電腦連接，上海在線PH計，記錄并監(jiān)測pH測量結(jié)果。這些變送器可以測量不同的傳感器輸入，包括但不限于pH、RTD、相對濕度，上海在線PH計。借助藍(lán)牙無線技術(shù)，將數(shù)據(jù)傳輸?shù)揭寻惭b應(yīng)用程序的智能手機(jī)或平板電腦上。該應(yīng)用程序允許使用智能手機(jī)進(jìn)行配對并對多個變送器進(jìn)行設(shè)置。便攜式pH計此類pH計功能完善，便于攜帶，適于實驗室或現(xiàn)場使用。其可用功能包括RS232輸出、數(shù)據(jù)保持、°C或°F選擇、自動關(guān)閉、過載指示以及自動或手動溫度補(bǔ)償，等等。臺式pH計臺式pH計通常是實驗室、工業(yè)和制造應(yīng)用的理想之選。各型號具有mV、離子和溫度測量功能，種類多種多樣，涵蓋經(jīng)濟(jì)型到滿足低公差測量需求的**型。pH電極pH電極具有各種類型，適用于實驗室與工業(yè)應(yīng)用，上海在線PH計。無論何種類型，這些電極均由玻璃制成，因此非常容易破碎。電極設(shè)計大部分用于測量水性介質(zhì)。它們并非設(shè)計用l4之類的溶劑，因為這些溶劑里面不含氫離子。常見問題頂部溫度對pH的影響溫度高于25°C：溫度補(bǔ)償可降低高pH值并提高低pH值，使pH值接近中性。溫度低于25°C：溫度補(bǔ)償可提高高pH值。按便攜性分的，分為：便攜式pH計，臺式pH計和筆式pH計。上海在線PH計</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海在線PH計,PH計" src="http://tyunfile.71360.com/UploadFile/boqu123/637190816659101563/4873436.jpg"></div><p> A正確。又由于溶液中，陰離子電荷總數(shù)與陽離子電荷總數(shù)相等，D也正確。本題應(yīng)選A、D。例6.將pH為6的鹽酸與pH為4的鹽酸等體積混合后，溶液中氫氧根離子濃度(mol/L)**接近()A.(10-8＋10-10)××10-10－5×＋10-10解析：按，混合液的pH＝，即pOH＝。將各選項舍去[OH-]小的，求pOH。＝－lg(5×10-9)＜9；B.；C.－lg(－5×10-5)，舍去；。應(yīng)選B。例7.把10mLpH＝10的強(qiáng)堿溶液小心地加入10mLpH＝4的某酸溶液中，在完全反應(yīng)后的溶液中滴入紫色的石蕊試液時，溶液顯紅色，則此酸為()A.一元強(qiáng)酸B.二元強(qiáng)酸C.任何強(qiáng)酸D.弱酸解析：根據(jù)，若某酸為強(qiáng)酸，則混合液的pH值應(yīng)為7。故可排除A、B、C，因此應(yīng)選D。例8.等體積混合mol/L鹽酸合mol/LBa(OH)2溶液后，溶液的pH值等于()：堿中[OH-]＝mol/L，pH＞13，鹽酸中pH＝1，混合液的pH應(yīng)＞13－＞12，故應(yīng)選A。例＝2的鹽酸與pH＝13的NaOH溶液按體積比10∶1混合，混合液的pH值**接近于()：可將NaOH溶液體積增大10倍，使與酸溶液成等體積混合，這時堿溶液的pH＝12，由于2＋12＝14，故混合液pH＝7，應(yīng)選C。例10．4體積pH＝9的Ca(OH)2溶液與1體積pH＝13的NaOH溶液混合后，溶液中氫離子濃度為()×10-13mol/×10-12mol/LC.×(1×10-1＋4×10-5)mol/LD.。上海在線PH計電計示值誤差(pH)±0.1、±0.05、±0.01、±0.01、±0.002.</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海在線PH計,PH計" src="http://tyunfile.71360.com/UploadFile/boqu123/637190815949619141/1653892.jpg"></div><p> 國產(chǎn)余氯檢測儀，測水中游離氯，總氯，CL-2059A在線余氯分析儀CL-2059A在線余氯分析儀主要特點菜單設(shè)計：采用面向?qū)ο蟮牟藛卧O(shè)計，使操作簡單明了。多屏顯示：儀器中有3種顯示方式，方便用戶對顯示方式的不同要求。余氯定標(biāo)：提供余氯零點定標(biāo)和斜率定標(biāo)，菜單設(shè)計清晰明了。數(shù)字時鐘：提供計時功能寬屏顯示：12864液晶背光柔和，顯示清楚。儀表穩(wěn)定：看門狗功能確保儀表正常連續(xù)工作CL-2059A在線余氯分析儀基本功能高度智能：CL-2059A工業(yè)余氯在線分析儀采用業(yè)界**的總體設(shè)計概念，進(jìn)口**器件確保儀表的***。靈活設(shè)計：可選擇自動和手動溫度補(bǔ)償，滿足用戶的多種需求。電流輸出：采用隔離技術(shù)，抗干擾能力強(qiáng)，可選擇測量參數(shù)和設(shè)置上下限。高低報警：硬件隔離，每個通道可任意選擇測量參數(shù)，遲滯量可預(yù)設(shè)。485通訊：方便計算機(jī)進(jìn)行監(jiān)測溫度補(bǔ)償：在0～50℃自動溫度補(bǔ)償。防水防塵：儀表密封性良好。CL-2059A在線余氯分析儀儀器技術(shù)參數(shù)測量范圍余氯:0～，分辨率溫度0～℃，分辨率℃測量精度余氯：優(yōu)于±1%或±溫度：優(yōu)于±℃（0～℃）**檢測限重復(fù)性余氯：±穩(wěn)定性余氯：±（mg/L）/24h電流隔離輸出4～20mA（負(fù)載<750Ω）電流輸出;可獨立選擇測量參數(shù)。</p><p> 請將pH測量計設(shè)為“pH”或“ATC”。3.請在室溫pH。4.利用“ZEROOFFSET（零位偏移）”、“STANDSARDIZED（標(biāo)準(zhǔn)化）”或“SET（設(shè)置）”旋鈕將pH示數(shù)準(zhǔn)確調(diào)節(jié)為。5.用蒸餾水或去離子水沖洗電極。（這是單點校準(zhǔn)的一個步驟。雙點校準(zhǔn)請?zhí)敛襟E8。）6.將電極放入pH或pH的第二份緩沖液中。7.利用SLOPE（斜率）、CALIBRATE（校準(zhǔn)）或GAIN（增益）控件（粗調(diào)）來調(diào)整pH示數(shù)，以顯示正確的數(shù)值。8.利用SLOPE旋鈕（精調(diào)）調(diào)整pH示數(shù)，以讀取正確數(shù)值。pH測量應(yīng)用中的挑戰(zhàn)沒有任何復(fù)雜的pH問題是相同的。以下列表說明了測量pH值時可能遇到的問題類型以及如何處理這些問題。1.測量經(jīng)常會對pH系統(tǒng)造成擾動，包括可重復(fù)性誤差、測量噪聲和閥門遲滯等等。2.無論控制器處于何種模式和狀態(tài)，如果設(shè)定值處于滴定曲線的陡峭位置，內(nèi)嵌pH回路都會出現(xiàn)震蕩。3.當(dāng)具有未密封端子的pH電極部件浸沒在液面以下時，**終會變成濕端子。4.如果反應(yīng)物控制閥未與內(nèi)嵌系統(tǒng)的注入位置緊密連接，會引起反應(yīng)物輸送出現(xiàn)重大延遲，而且難以發(fā)現(xiàn)。5.需要使用流量計或預(yù)測器才能診斷出反應(yīng)物輸送問題。6.流量的前饋信號會與pH控制器的輸出相乘，用于直接操作反應(yīng)物控制閥或者設(shè)定反應(yīng)物流量控制值。從實際使用要求出發(fā)，電計的分度值為0.1～0.001pH，如果有必要的話，完全可以制作出更精密的電計。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海在線PH計,PH計" src="http://tyunfile.71360.com/UploadFile/boqu123/637190816667128906/3720560.jpg"></div><p> 堿性更強(qiáng)）并降低低pH值（酸性更強(qiáng)），使pH值遠(yuǎn)離中性。是否需要采取溫度補(bǔ)償，取決于所需的pH準(zhǔn)確度。比如，如果準(zhǔn)確度要求為±pH，那么當(dāng)pH為6且溫度為45℃（113℉）時，誤差為，仍滿足準(zhǔn)確度要求。另一方面，在pH為10且溫度為55℃（131℉）時的誤差為pH，如果要求±pH的準(zhǔn)確度，則須進(jìn)行補(bǔ)償?？赏ㄟ^一種或者兩種方式進(jìn)行補(bǔ)償。如果溫度出現(xiàn)波動，則應(yīng)采用自動補(bǔ)償器。如果溫度變化范圍僅有數(shù)攝氏度，則應(yīng)采用手動補(bǔ)償器。如果無須采用補(bǔ)償器，可在溫度補(bǔ)償器端子上安裝一個固定電阻。上述任何一種裝置——自動補(bǔ)償、溫度補(bǔ)償或者固定電阻——均是pH計電路的一項功能。同樣，須從測量計制造商處獲取信息和零部件。如果采用自動補(bǔ)償器，必須與pH電極安裝在同一位置。當(dāng)在緩沖液中進(jìn)行校準(zhǔn)時，溫度補(bǔ)償器也應(yīng)當(dāng)處于緩沖液中。按同樣的方式，在校準(zhǔn)和工作過程中，也應(yīng)當(dāng)調(diào)整手動溫度補(bǔ)償器以反映pH電極所處的溫度。如何校準(zhǔn)pH計？以下是大多數(shù)pH測量計的通用方法。某些pH測量計要求采取稍微不同的技術(shù)。請閱讀特定流程說明。1.測量計上的溫度設(shè)定必須與所采用的緩沖液溫度相對應(yīng)，或者必須采用自動溫度補(bǔ)償器。2.如果采用自動溫度補(bǔ)償功能。便攜式和臺式pH計測量范圍較廣，常用儀器，不同點是便攜式采用直流供電，可攜帶到現(xiàn)場。河北PH計便宜</p><p style="text-indent:25px">在進(jìn)行操作前，應(yīng)首先檢查電極的完好性。甘汞電極。由于復(fù)合電極使用比較***，以下主要討論復(fù)合電極。上海在線PH計</p><p> 開發(fā)、生產(chǎn)、銷售國際領(lǐng)先的集信息、化工、精密儀器技術(shù)于一體的環(huán)保監(jiān)測系列產(chǎn)品。以環(huán)保監(jiān)測類產(chǎn)品、信息中心綜合管理系統(tǒng)集成為主打方向，加強(qiáng)對環(huán)保實時在線監(jiān)測系統(tǒng)聯(lián)網(wǎng)解決方案的推廣力度。公司設(shè)有研究開發(fā)、生產(chǎn)銷售與客戶服務(wù)等部門，擁有一批在儀器儀表、電子工程、自動控制、計算機(jī)通訊、計算機(jī)軟件、市場營銷、企業(yè)管理等方面學(xué)有專長，并具有豐富實踐經(jīng)驗的人才。技術(shù)骨多名環(huán)境專業(yè)和計算機(jī)專業(yè)的博士、碩士和跨專業(yè)復(fù)合型人才。公司具備完善的技術(shù)開發(fā)、質(zhì)量管理和售后服務(wù)等體系，可為客戶提供滿意的服務(wù)。公司開發(fā)的ESIS環(huán)境監(jiān)理信息系統(tǒng)符合國家環(huán)保總局的要求，滿足了各級環(huán)保部門聯(lián)網(wǎng)管理的需求，取得了國家版權(quán)局頒發(fā)的軟件著作權(quán)登記證書。公司建立了覆蓋全國的市場開拓和客戶服務(wù)網(wǎng)絡(luò)。公司擁有具有專業(yè)特長和豐富工作經(jīng)驗的高素質(zhì)人才，在產(chǎn)品研發(fā)、市場開拓、生產(chǎn)管理、物流控制等方面具有豐富經(jīng)驗；公司具備完善的技術(shù)開發(fā)、質(zhì)量管理和售后服務(wù)體系。上海在線PH計</p><p style="text-indent:25px">上海博取環(huán)境技術(shù)有限公司致力于儀器儀表，以科技創(chuàng)新實現(xiàn)***管理的追求。公司自2019-04-11成立以來，投身于[ "PH計", "COD分析儀", "氨氮分析儀", "重金屬分析儀" ]，是儀器儀表的主力軍。公司堅持以技術(shù)創(chuàng)新為發(fā)展引擎，以客戶滿意為動力，目前擁有11~50人專業(yè)人員，年營業(yè)額達(dá)到700-1000萬元。博取環(huán)境始終關(guān)注儀器儀表市場，以敏銳的市場洞察力以準(zhǔn)確定位，實現(xiàn)與客戶的成長共贏。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/250510.html</p></div></div></div></div></div><div id="zrbselm" class="page-right twoColRt"><div id="hfmtvce" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hldaxub" 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="rfx8cd2" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" 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