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• Press the Zero key. The display will show “‑0.0‑” when the meter is zeroed and ready for
measurement.
• Remove the cuvette.
• Use the minipipette to add 0.1 mL of sample to the cuvette.
• Add one packet of HI7582 Calcium Reagent B. Replace
the cap and shake vigorously for 15 seconds or until
the powder is completely dissolved. Allow air bubbles to
dissipate for 15 seconds before taking a reading.
• Reinsert the cuvette into the instrument and close the lid.
• Press Read to start the reading. The instrument displays the results in mg/L of calcium (Ca
2+
).
CALCIUM, MARINE