Hanna Instruments HI 83225-01 - Manual (Page 43)

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• 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
2
O).
• Press or to return to the measurement screen.
• For ULTRA HIGH RANGE samples: follow the procedure described at page 44.
Potassium HR