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宋體;">可以應用在許多領(lǐng)域，如飲用水處理、污水處理、醫(yī)藥制造、食品加工、農(nóng)業(yè)灌溉等。在這些領(lǐng)域，維持適當?shù)腜H值可以確保水的質(zhì)量，同時也可以提高生產(chǎn)效率和產(chǎn)量。</span></span><div><span style="font-size: 14px;"><span style="font-family: 宋體;">在線PH控制器是一種應用廣泛的自動化儀表，它旨在控制水質(zhì)，pH值是衡量水體酸堿度的重要指標之一。</span></span></div><div><span style="font-size: 14px;"><span style="font-family: 宋體;">在線ph控制器是現(xiàn)在多數(shù)工業(yè)生產(chǎn)中使用較為廣泛的監(jiān)控儀表之一，在長期使用過程中，在線PH計會老化，所以要進行定期校準，使之能夠符合我們的正常監(jiān)控要求。</span></span></div><div><span style="font-size: 14px;"><span style="font-family: 宋體;">在線ph控制器校準方法一般采用兩點校準法，選用兩種標準溶液，一種是pH7標準緩沖液，第二種是pH9標準緩沖液或pH4標準緩沖液。先用pH7的標準緩沖液對電極進行定位，再根據(jù)待測溶液的酸堿性選擇第二種標準緩沖液。如果待測溶液呈酸性，則選用pH4標準緩沖液;如果待測溶液呈堿性，則選用pH9標準緩沖液。</span></span></div><div><span style="font-size: 14px;"><span style="font-family: 宋體;">在校準前應特別注意待測溶液的溫度。要保證標準緩沖液與待測溶液的溫度一致。因為不同的溫度下，標準緩沖溶液的pH值是不一樣的。不同場合的PH計校準工作結(jié)束后，對使用測量操作的ph控制器一般在48小時內(nèi)儀器不需再次定標。</span></span></div><div> </div> </div> <div id="skwhlipu" class="ly_PrevNext"> <ul> <li>上一篇：<a 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