PH計是用來測PH值的儀器。應用也比較廣泛，便攜式、在線式廣泛用于工業、農業等領域。實驗室PH計是實驗室常用來測量溶液PH的，下面以西安云儀PHS-3C型舉例說說PH計的使用方法。
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西安云儀分析儀表
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