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class="news_view_click"> <span class="news_view_date1">瀏覽人氣：</span> <span id="ShoveWebControl_Text5" style="display: inline;">700</span> </div> </div> <div id="news_view" class="news_view"> <span id="ShoveWebControl_Text4"><div>　　<strong><a href="http://www.azevedokitchens.com/Products-13553083.html" target="_blank">在線COD監測儀</a></strong>的測量方法采用國家標準水質-化學需氧量測定（重鉻酸鉀法）水樣，重鉻酸鉀，硫酸銀（催化劑可使線性脂肪族化合物更充分地被氧化）和濃硫酸，在消化罐中加熱到175℃。在此期間，作為氧化劑的鉻離子從VI價還原為III價，從而改變了顏色。顏色變化的程度對應于樣品中有機化合物的含量。顏色轉換直接顯示樣品的COD。<br /> </div><p align="center"><img src="https://img77.ybzhan.cn/9/20210521/637572138085529228194.jpg" alt="在線COD監測儀" width="327" height="271" align="middle" /></p><p> </p><div>　　在線COD監測儀的主要性能描述：</div><div>　　1、斷電保護設計，具有自動斷電和再次上電的數據恢復功能。該儀器可以實現數據共享和遠程傳輸功能。</div><div>　　2、儀器在線模式（即自動模式）和離線模式（手動模式）中的數據是獨立存儲的，離線模式下的數據不上傳到數據采集儀中，避免了上傳的影響儀器維護期間的數據。</div><div>　　3、儀器的整個軟件系統框架和外部設施使人機交互更加輕松，功能應用程序更加完善。</div><div>　　4、自動漏電報警功能，超量程報警功能，智能故障報警功能，提示用戶管理和維護。</div><div>　　5、儀器測量過程中所造成的污染可以根據特殊場所的水質情況不時設定，大大降低了因該問題引起的儀器故障率，使測量數據更加準確。</div><div>　　6、水樣的測量分為在線模式（即自動模式）和離線模式（即手動模式）。在離線模式下，校準管用于測量。無需將水樣管從采樣口或采樣杯中取出，維護更加方便。</div><div>　　了解在線COD監測儀的性能后，仍然會遇到的問題是，當出現一些故障并且不知道問題出在哪里時，該怎么辦？</div><div>　　1、采樣失敗---低水壓；采樣時間短；電路故障；進樣閥損壞。</div><div>　　2、試劑泄漏-管道老化；二位三通閥損壞。</div><div>　　3、試劑不能自動進入---光耦合器失控或檢查光耦合器和光耦合器底座是否連接正確；檢查光耦合器線。</div><div>　　4、蠕動泵沒有積水-電動機驅動電壓不足；驅動器故障或軟管變形和老化。</div><div>　　其他故障</div><div>　　1、動作不到位---雜物被阻塞或卡在線軸中；電路故障。</div><div>　　2、蒸煮器的溫度過高或過低-鉑電阻被損壞；溫度控制器損壞；加熱裝置損壞。</div><div>　　3、AD值太低或異常---光度計電源故障；可調電阻調節不當；發光二極管損壞或老化；光電二極管損壞；AD模塊損壞。</div><div>　　4、零點電壓非常高---光閘控制失??；光度計具有較大的零漂移。</div><div>　　5、無流量---流量探頭沒有電流和電壓；流量探頭必須有電流和電壓，但無信號電壓；數據接口連接不良；AD模塊損壞（無AD信號）。</div></span> <div 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