Hanna-instruments HI 83215-2008 Series Manual de usuario descargar pdf (Pagina 45)

• 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 83215-2008 Series Manual de usuario Pagina 45