Marine Calcium
26
• Press
Zero
. 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. See Collecting & Measuring Samples and
Reagents for tips for proper usage of the minipipette. Ensure no sample remains inside the tip after
dispensing.
• Add the content of one packet of
HI7582
Marine Calcium Reagent B. Replace the plastic stopper and 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.
• Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove.
0.1 mL
• Press
Read
to start reading.
The instrument displays the results in
ppm
of
calcium (Ca
2+
)
.
Note
: Do not rinse cuvettes with tap water or tank water as these contain significant amounts of calcium.
Always use deionized water.