Hanna Instruments HI 96750 - Manual (Page 14)

14
• Fill the cuvette with 10 mL of unreacted
sample, up to the mark, and replace the
cap.
• Add six drops of HI 93750A-0, replace
the cap and swirl the solution.
• Place the cuvette into the cuvette holder
and ensure that the notch on the cap is
positioned securely into the groove.
• Press ZERO/CFM and the lamp, cuvette
and detector icons will appear on the
display, depending on the measurement
phase.
• After a few seconds, the display will
show “-0.0-”. The meter is now zeroed
and ready for measurement.
• Remove the cuvette.
• Add the content of one packet of
HI 93750B-0 powder reagent. Replace
the cap and shake gently for about 1
minute to dissolve most of the reagent.
• Replace the cuvette into the cuvette holder
and ensure that the notch on the cap is
positioned securely into the groove.
• Press and hold READ/ /TIMER for three
seconds. The display will show the
countdown prior to measurement. The
beeper is playing a beep at the end of
countdown period.
• Press and hold READ/ /TIMER for three
seconds. The display will show the
countdown prior to measurement. The
beeper is playing a beep at the end of
countdown period.
Alternatively, wait for 2 minutes then just
press READ/ /TIMER.
In both cases, the lamp, cuvette and
detector icons will appear on the display,
depending on the measurement phase.
• At the end of measurement, the instrument
directly displays concentration in mg/L of
potassium on the LCD.