Hanna Instruments HI83300 - Page 98

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• Place the cuvette into the holder and close the lid.
• Press the Zero key. The display will show “‑0.0‑” when the meter is zeroed and ready for
measurement.
• Remove the cuvette and add the contents of one
packet of HI93735C‑0 Fixing Reagent. Replace
the cap and shake gently to mix 20 seconds.
• Place the cuvette into the holder and close the lid.
• Press Read to start the reading. The instrument displays concentration in mg/L of calcium
carbonate (CaCO
3
).
• Press  or  to access the second level functions.
HARDNESS, TOTAL LOW RANGE