Thread: DI resin expired already?
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Old 05-04-2011, 12:19 AM
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NastayNatron NastayNatron is offline
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Alright sorry it is actually 1 ppm not 0.01ppm. And as for calibrating it . . its an inline HM Digital TDS metre and there is no way I know of calibrating it. The metre is only about 3 months old and has always worked. . . hmm
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