溶(rong)解氧(yang)是指溶解在水(shui)裏氧(yang)的量,通(tong)常記作(zuo)DO。有些(xie)有機化合物(wu)在喜(xi)氧(yang)菌(jun)作(zuo)用(yong)下發生(sheng)生(sheng)物降解,要消耗水裏(li)的溶(rong)解氧(yang),溶(rong)解氧(yang)得(de)不(bu)到及時補充(chong),水體中(zhong)的厭(yan)氧(yang)菌(jun)就會很快繁(fan)殖(zhi),而使(shi)水體變(bian)黑(hei)、發臭。溶(rong)解氧(yang)是衡(heng)量水(shui)質(zhi)好壞(huai)的壹(yi)個(ge)重要指標。
1.通(tong)電(dian)後(hou),進入設置(zhi)界(jie)面(mian)(設置(zhi)密(mi)碼為(wei)2020)
2.進(jin)入分(fen)析設置(zhi)
3.分析設置(zhi)中(zhong)有三種單(dan)位(wei)可(ke)選:百(bai)分(fen)比、ppm、mg/L,通(tong)常情況(kuang)下選擇mg/L,其他(ta)參(can)數(shu)保(bao)持(chi)不(bu)變(bian)
4.進入溫度設置(zhi)
5.溫度顯示壹欄選擇顯示
1.進入校準(zhun)界(jie)面(mian)(校(xiao)準(zhun)密(mi)碼為(wei)1010)
2.校(xiao)準分(fen)為壹點校準(zhun)及二(er)點校正(zheng),壹般(ban)情況(kuang)下選擇壹點(dian)校(xiao)準(將電(dian)極(ji)放在空(kong)氣(qi)中(zhong)即(ji)可(ke))
3.觀察(cha)飽和(he)氧(yang)讀(du)值,穩定(ding)後按下確認(ren)鍵(jian)
4.校(xiao)準(zhun)完(wan)畢(bi)後(hou),觀察(cha)儀(yi)器界(jie)面(mian)測(ce)量值與(yu)溫度是否(fou)符(fu)合相(xiang)對(dui)應的數(shu)據(ju)
★下附不(bu)同溫度時純水中(zhong)飽(bao)和(he)溶解氧(yang)含量對(dui)照(zhao)表

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