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class="NyNewsdetail_tips">更新時(shí)間：2025-04-25 點(diǎn)擊次數：306</div> <div id="j8g793f" class="NyNewsdetail_con"> <div>　　在電力生產(chǎn)過(guò)程中，水質(zhì)的酸堿度對設備安全運行和電力生產(chǎn)效率有著(zhù)重要影響，<strong><a href="http://www.tianhualian.com.cn/Products-24148558.html" target="_blank">電力pH計</a></strong>作為監測水質(zhì)pH值的關(guān)鍵儀器，其測量準確性至關(guān)重要?，F場(chǎng)校準是確保pH計測量精度的重要手段，掌握正確的校準技巧，能夠有效提高校準效率和準確性。</div><div>　　校準前的準備工作是保證校準順利進(jìn)行的基礎。首先，要準備好合適的標準緩沖溶液，常見(jiàn)的有pH4.00、pH7.00和pH9.18三種，這些標準緩沖溶液需在有效期內，且保存得當，避免污染。同時(shí)，準備好校準所需的工具，如干凈的燒杯、玻璃棒、鑷子等，以及防護用具，如手套、護目鏡，防止標準溶液濺出造成傷害。另外，需檢查pH計的電極，確保玻璃電極表面無(wú)破損、無(wú)污垢，參比電極的電解液充足，鹽橋無(wú)堵塞，若發(fā)現電極存在問(wèn)題，應及時(shí)進(jìn)行處理或更換，否則會(huì )影響校準效果。</div><div>　　現場(chǎng)校準一般采用兩點(diǎn)校準法。先將<strong>電力pH計</strong>電極用蒸餾水沖洗干凈，并用干凈的濾紙輕輕吸干電極表面水分，將電極浸入pH7.00的標準緩沖溶液中，輕輕攪拌溶液，使電極與溶液充分接觸。待讀數穩定后，調節pH計的“定位”旋鈕，使顯示值與標準緩沖溶液的pH值一致。完成定位校準后，將電極取出，再次用蒸餾水沖洗干凈并吸干水分，然后浸入pH4.00或pH9.18的標準緩沖溶液中（根據實(shí)際測量的pH值范圍選擇），同樣攪拌溶液，待讀數穩定后，調節“斜率”旋鈕，使顯示值與該標準緩沖溶液的pH值相同。如此反復進(jìn)行定位和斜率調節，直至在兩種標準緩沖溶液中的測量值都準確無(wú)誤，完成校準。<br /> </div><p align="center"><img src="https://img43.chem17.com/9/20250425/638811888169921773665.png" width="468" height="397" align="middle" alt="" /></p><p> </p><div>　　在校準過(guò)程中，還需注意一些細節問(wèn)題。攪拌溶液時(shí)動(dòng)作要輕柔，避免產(chǎn)生大量氣泡，防止氣泡附著(zhù)在電極表面影響測量；每次更換標準緩沖溶液時(shí)，電極都要用蒸餾水充分沖洗，防止殘留溶液污染新的標準緩沖溶液，影響校準準確性。同時(shí)，要注意校準環(huán)境的溫度，因為標準緩沖溶液的pH值會(huì )隨溫度變化而改變，現場(chǎng)校準需根據實(shí)際溫度對標準緩沖溶液的pH值進(jìn)行修正，或使用帶有溫度補償功能的pH計，確保校準在準確的條件下進(jìn)行。</div><div>　　若校準過(guò)程中出現讀數不穩定、偏差較大等問(wèn)題，可先檢查電極是否被污染，若電極表面附著(zhù)有污垢，可用專(zhuān)用的電極清洗液進(jìn)行清洗，然后重新校準。若問(wèn)題依然存在，需考慮電極是否老化或損壞，必要時(shí)更換新的電極再進(jìn)行校準。</div><div>　　掌握<strong>電力pH計</strong>的現場(chǎng)校準技巧，做好校準前準備，嚴格按照校準流程操作，并注意校準中的細節和問(wèn)題處理，能夠有效保障pH計的測量準確性，為電力生產(chǎn)過(guò)程中的水質(zhì)監測提供可靠數據支持，確保電力系統安全穩定運行。</div> </div> <div id="2uc4hwf" class="ly_PrevNext"> <ul> <li>上一篇：<a href="/Article-4010085.html">一體化電導率儀參數設置方法</a></li> <li>下一篇：<a href="/Article-4002823.html">超聲波與電容式污泥界面儀的對比：精度、成本與適用場(chǎng)景分析</a></li> </ul> </div> </div>   <div id="1zdh2b2" class="ly_foot"> <div id="x2pp2ed" class="ly_Ftmain"> <div id="tywa3ha" class="ly_FtLeft"> <div id="rlorkow" class="Ft_nav"><a href="/">首頁(yè)</a><a href="/aboutus.html" target="_blank">關(guān)于我們</a><a href="/products.html" target="_blank">產(chǎn)品展示</a><a href="/news.html" target="_blank">新聞中心</a><a href="/article.html" 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