Hanna-instruments HI 83225 Manuel d'utilisateur télécharger pdf (Page 46)

• 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 content of one

packet of HI 93750B-0 reagent. Replace the cap

and gently mix for one minute by slowly turning the

cuvette upside down.

• Reinsert the cuvette into the instrument.

• Press Timer and the display will show the countdown prior to

the measurement or, alternatively, wait for 2 minutes and

press Read. When the timer ends the meter will perform the

reading. The instrument displays the results in mg/L (ppm) of

potassium (K).

• Press or to access the second level functions.

• Press the Chem Frm key to convert the result in mg/L of potassium oxide (K

O).

• Press or to return to the measurement screen.

INTERFERENCES

Interferences may be caused by:

Ammonium above 10 ppm

Calcium above 10000 ppm as CaCO

Chloride above 12000 ppm

Magnesium above 8000 ppm as CaCO

Sodium above 8000 ppm

Potassium MR

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Hanna-instruments HI 83225 Manuel d'utilisateur Page 46