INE-PHS-3E 2016
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ADVICE:
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Read this instruction carefully before operating the meter.
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The meter should be re-tested by metrological department when it is used
for over one year. The meter can't be used until it is up to standard.
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The warranty of the glass PH electrode is one year. The electrode should be
replaced in time after one year no matter whether it is used or not, since the
performance of it will be influenced.
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When pH electrode is used for the first time, or if pH electrode is not used for
a long time, it must be immerged in 3mol/L (KCl) solution for 24 hours before
operating.
