溶氧儀,是極譜分析儀器,專為鍋爐給水和凝結水等ppb級溶解氧測量設計。確保了在(超)低濃度的穩定性和準確性,在測量性能和使用環境等方面有很大的提高。 溶氧儀(yi)主要(yao)是用(yong)于化(hua)工(gong)化(hua)肥、冶(ye)金、環保、制(zhi)藥、生化(hua)、食品和自來水等溶液中溶解氧值(zhi)的連續(xu)監測。
如工作人員**使用或連續(xu)斷電(dian)(dian)(dian)(dian) 5~10 分鐘以上時,與(yu)儀表(biao)連接好通電(dian)(dian)(dian)(dian)后(hou)所進(jin)行的(de)是極(ji)化(hua)。以使電(dian)(dian)(dian)(dian)極(ji)里的(de)化(hua)學(xue)體系(xi)達到(dao)平衡,降低(di)(di)零氧電(dian)(dian)(dian)(dian)流(liu),使電(dian)(dian)(dian)(dian)極(ji)穩定(ding)。開始(shi)時,電(dian)(dian)(dian)(dian)極(ji)的(de)電(dian)(dian)(dian)(dian)流(liu)較大,按(an)指數規律下降,6個小時后(hou)便處于穩定(ding)態,在此期間的(de)顯示數據將逐(zhu)漸降低(di)(di),直到(dao)穩定(ding)。隨(sui)后(hou)才能(neng)進(jin)行標定(ding)。
極(ji)化過(guo)程需要6小時,先(xian)將(jiang)電(dian)(dian)極(ji)與二次表(biao)正(zheng)確(que)連接,接通(tong)儀表(biao)電(dian)(dian)源即(ji)可。如(ru)果是關電(dian)(dian)時間(jian)不長,極(ji)化時間(jian)會短(duan)一些,較快的穩(wen)定(ding)。