Hanna-instruments HI 83225 Manuel d'utilisateur télécharger pdf (Page 50)

Calcium

• 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).

• 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

) above 1000 mg/L

Alkalinity (as CaCO

) above 1000 mg/L

Magnesium (Mg

) above 400 mg/L

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Hanna-instruments HI 83225 Manuel d'utilisateur Page 50