32
• Press Timer or wait for 5 minutes. Then invert again
the cuvette 10 times to mix (about 15 seconds).
• Reinsert the cuvette into the instrument.
• Press Read to start the reading. The instrument displays the results in mg/L of Calcium.
INTERFERENCES:
Interferences may be caused by:
Acidity (as CaCO
3
) above 1000 mg/L
Alkalinity (as CaCO
3
) above 1000 mg/L
Magnesium (Mg
2+
) above 400 mg/L
• Replace the cap and invert several times to mix.
• 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.
• Using the 1 mL syringe, add exactly 1 mL of the
HI 93752B-0 Calcium Oxalate Reagent. Replace the
cap and invert the cuvette 10 times to mix (about
15 seconds).
Calcium
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